直播回顾：4月27日 ST 75V降压控制器和隔离降压方案
<p><strong>直播时间：</strong>4 月 27 日（周四）上午10:00-11:30<br /><strong>直播主题：</strong>75V降压控制器和隔离降压方案<br />
<strong>观看回放：</strong><a href="https://training.eeworld.com.cn/course/67972" target="_blank">点击观看</a></p>
<p><strong>ppt下载：</strong><a href="http://edm.eeworld.com.cn/edm/ST_webinar_20230427/1.pdf" target="_blank">点击下载</a></p>
<p>问答汇总：</p>
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<td style="border-bottom:1px solid black; vertical-align:middle; white-space:normal; background-color:#ed2624; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black">提问内容</td>
<td style="border-bottom:1px solid black; vertical-align:middle; white-space:normal; background-color:#ed2624; border-top:1px solid black; border-right:1px solid black; border-left:none">答复内容</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751跟市场上同类产品相比较有哪些优势？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">优势是输入电压范围宽，耐压高，效率高，在大压差大电流应用下效率也可以做到95%，有同步引脚和power good功能，软启动，过流保护，各种保护比较齐全，抗干扰能力强。</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">该控制器适合哪种拓扑结构？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">适合同步buck</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751可以用在哪些地方？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">通讯，网络能源以及工业应用</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751可以用在哪些地方？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">通信，网络能源以及工业应用系统</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">能实现的最大功率是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">标称是能输出20A</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">能实现的最大功率是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有做过板子可以输出30A</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">75V降压控制器的资料在哪里查阅？谢谢</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">意法半导体官网。</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">降压最低能降到多少</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">最低降低0.8A</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">我关心的待机功耗参数是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">静态电流是1.8mA，关断电流是8.5uA</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的直流输入多少伏</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">6-75v</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751降压控制器可以同时应用为隔离的或非隔离的吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">不能，只用在非隔离应用</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3571用在什么领域</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">L</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3571用在什么领域</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">用在多节电池串联供电的应用上，例如电动自行车，扫地机器人，无人机。还有用在通信上面的背板分布式电源，服务器。也用在工业和自动化控制的功率执行器，过程控制器</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751降压控制器最佳使用在哪个范围？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">通常使用在12V</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751降压控制器最佳使用在哪个范围？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">或5v输出</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的输入电压范围多少</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">是6v到75v</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">降压范围是为可调的吗?</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以通过反馈电阻来调节输出电压</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751降压控制器与其他相比有哪些优势</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">支持最高75Vdc</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751降压控制器与其他相比有哪些优势</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有高效模式和低噪音模式供客户选择</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">极限工作温度范围？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">工作结温范围是-40度到+150度，</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">最高效率多大?</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">最高效率是97.5%</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751封装尺寸多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">QFN20</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751稳定运行的温度范围</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">支持150度的最大节温</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751最大功率多少</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">因为是外置mosfet</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751最大功率多少</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">因为是外置mosfet方案，理论上功率不受限。但是实际应用中要考虑芯片的驱动能力，一般建议输出电流小雨30A</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">对于24V和48V电信和网络设备，L3751是否适用？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">支持最高75Vdc</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751支持几路输出？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">单路输出</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">有DEMO板提供吗?</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以，请联系ST销售</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的外部电路复杂吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">高集成，外围原件少</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">输出电压怎么调节？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">通过反馈回路调节</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">最大输出电流是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">30A</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">这就是个controller啊</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">是的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">满足车规级还是工业级要求？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">L3751：工规级， A3751：车规级</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751使用温度环境是多少？最低在多少度的环境运行</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">最大150度节温</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751纹波电流怎样?</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">取决于功率参数设计，高的电感量，可以获得低的电流纹波</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">会应用到汽车充电桩上吗</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751适用于光伏行业么？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的开关频率是多少?</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">最高1MHZ</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751有死机自动恢复功能吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">待机模式电流多大？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">1.8mA</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">待机模式静态电流多大？一般都用5V/12V精度如何？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">1.8mA</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">产品可以应用到汽车充电桩上吗</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">我们也有车规级产品：A3751</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">l3751可以车用吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">车规级型号是：A3751</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">该类型的芯片提供有哪些封装？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">QFN20L</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的直流输入多少伏</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">6V-75V</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">这款产品有汽车级的吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">这款产品有汽车级的吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的：A3751</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">设计工具哪里下载？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">ST官网</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">仿真软件地址在哪？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">ST</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">仿真软件地址在哪？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">ST官网</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的性价比如何？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">整体方案成本低</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751能驱动SiC器件吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">不可以</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">用什么仿真软件？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">ST官网有在线仿真软件</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">3751的最佳输入电压是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">6-75</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">DEMO板怎么申请？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">请联系销售</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751评估板如何购买？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">请联系销售</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751目前供货情况如何？交货周期大概多少周？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">正常量产中，交期目前大概20周</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">ST的降压控制器，是否有车规级的产品？如有，是哪些型号？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的，A3751</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">目前可以提供哪些保护功能？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">过流，欠压，过热，短路</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的生产工厂在哪里？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">前端：意大利，后端：中国</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751如何设置输出5-12V？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">通过反馈电路来设置</td>
</tr>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">这芯片本身的功耗怎么样</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">静态电流1.8ma</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">输出电压是否可以调节？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以自由设定</td>
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<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751需要配置单独的隔离电路吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">不需要</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751输出20A是有什么条件吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">没有限定条件，最大支持30A</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751目前在电信领域有实际应用案例吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">不同电流的是通过外接MOS管来实现的吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">是的</td>
</tr>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">这个芯片可以用于电机驱动上吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">这个芯片可以用于电机驱动上吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">采用什么隔离方式？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">非隔离方案</td>
</tr>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751压降差会影响温度吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">温度影响很小</td>
</tr>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">69861最大功率是多少</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">5W</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751是内置MOS还是要外置？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">外置mosfet</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">采用的是SIC工艺吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">BCD工艺</td>
</tr>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751价格怎样？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">请同销售确认</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">A6986L和L6986l有什么区别？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">A车规级和L工业级,</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">续流二极管也是集成在芯片里面吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">是同步Buck,续流用的是MOS,都集成在芯片内部.</td>
</tr>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">有内置mos，输入电压48以上的芯片吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的，ST1S14 和 L7987</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">隔离降压方案中必须要配置光耦合器吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">不用,</td>
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<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">隔离降压跟普通降压相比有哪些优势？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">与常规buck可以实现隔离输出.</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">能支持多路不同电压同时输出吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">隔离降压变换器可以实现多路输出</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">如何设定A/L69861输出频率？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">由FSW脚与VCC之间的电阻阻值和FSW与SGND间的电阻阻值共同决定的.</td>
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<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">69861是同步还是异步的？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">同步的</td>
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<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">有参考设计吗</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">供货正常了吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">供货正常</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">A/L69861有哪些保护功能？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">OVP,OTP,原边电流限制</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">A/L69861有哪些保护功能？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">过流，过压，过热，</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751输出长时间短路，会不会有问题？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">不会</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">过温、过压、过流保护有没有啊？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">可以输出最大多少功率？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">支持30A</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">输入12V，输出5V，也能输出30A？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">这么大的电流，内置MOS能行吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">外置mosfet</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">对于输入瞬态电压远高于75V的应用，L3751是否适用？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">不可以</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">如何获取产品资料？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">ST官网</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">外置MOS管如何做到过流保护限制的？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">取样mosfet</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">外置MOS管如何做到过流保护限制的？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">采样mosfet导通时的压降</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">A6986主要的技术特点是什么？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">1.同步buck</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">A6986主要的技术特点是什么？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">2.可以不用光藕的条件下实现隔离输出,3.低功耗</td>
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<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">今天讲解的75V降压，转换效率最高的是哪一款？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">L3751</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">降压控制器能承受的电压是受什么决定的？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">芯片的设计工艺</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">ST的降控制器能够搭配的外置功率器件有没有MOSFET、碳化硅和氮化镓吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">MOS导通压降是变化的，能准确判断过渡吗？过瀑如何判别？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">细节请参考规格书6.7部分</td>
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<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751可以驱动几路功率器件？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">单路输出</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">75V电压的工作范围适合哪一些具体的应用？有电动车或者电动ATV或通信设备吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有点</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">75V电压的工作范围适合哪一些具体的应用？有电动车或者电动ATV或通信设备吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">75V降压控制器有几种拓扑结构？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">同步buck</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">75V降压控制器和隔离降压方案的隔离采用的也是变压器和光耦吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">是的</td>
</tr>
<tr>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">69861最高隔离电压是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">取决于变压器的设计.</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">散热部分的设计，也是1盎司的PCB就能满足的吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">双层PCB带过孔是没问题的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3571演示板如何使用开发设置，有没有相关的教材（适合新手）或书籍推荐？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">用ST</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3571演示板如何使用开发设置，有没有相关的教材（适合新手）或书籍推荐？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">用ST设计工具eDesignSuit</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751，A3751还有工业级和通信级别的产品吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">有的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751可以用在智能家居、玩具和家电上面吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的EMI设计怎么降低辐射值？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">SW引脚跟电感和MOS管要靠在一起，也就是高频开关点要lay得很短</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751有没有画输出协议功能的？如：SCP、FCP等。</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">没有</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">大压差大电流应用下效率也可以做到95%的具体压差值和电流值是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">60v输入降压到12V20A</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">同步buck使用哪一款同步整流器件？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">内置MOS替代异步的续二极管.</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751的待机功耗（无输出的时候）是多少？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">是1.8mA</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">不推荐L3751使用的场合有哪一些？有另外的替代方案吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">输出电流3A以内的可以选用集成mosfet</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">不推荐L3751使用的场合有哪一些？有另外的替代方案吗？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">例如L6983</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751最低可以在多少度的环境运行？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">-40度</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751产品好，能申请样品试用？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">请联系销售</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751能不能适合新能源的太阳能应用？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">可以的</td>
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<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:1px solid black">L3751有没有I2C的通信方式？</td>
<td style="border-bottom:1px solid black; white-space:normal; vertical-align:bottom; border-top:none; border-right:1px solid black; border-left:none">没有</td>
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