【ST NUCLEO-U5A5ZJ-Q开发板】第6帖 电流测试
<div class='showpostmsg'><p><span style="font-family:宋体;"><span style="font-size:16px;">STM32U5系列提供基于Arm® Cortex®-M33的先进节能型微控制器，以满足满足智能应用最严苛的功率/性能要求，这些应用包括可穿戴设备、HMI、个人医疗器械、家居自动化和工业传感器。</span></span></p><p><span style="font-family:宋体;"><span style="font-size:16px;">所以电流功耗是比较关注的，这一篇我来测试一下基本的电流</span></span></p>
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<p><span style="font-family:宋体;"><span style="font-size:16px;">(1)运行模式电流 (160MHz)</span></span></p>
<p > </p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;"> </span></span></p>
<p > </p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">HSE 160MHz</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">实际测试</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">13.6和手册差不多</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;"> </span></span></p>
<p > </p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">(2)睡眠模式Sleep mode电流</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;"> </span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">Sleep mode 4.02mA 和手册值差不多</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;"> </span></span></p>
<p > </p>
<p > </p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;"> </span></span></p>
<p ><font face="宋体"><span style="font-size: 16px;">(3)停止模式stop电流</span></font></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">Stop </span></span>0<span style="font-family:宋体;"><span style="font-size:16px;"> mode 550uA</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">Stop 1 mode 110uA</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;"> </span></span></p>
<p > </p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">STOP 2 Mode 77uA 比手册略大</span></span></p>
<p > </p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">STOP3 MODE 7uA</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;"> </span></span></p>
<p > </p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">(4)待机模式standby电流</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">Standby测试下来0.9uA 真的挺小的(手册里是nA)</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">Shutdown mode 测试下来0.5uA</span></span></p>
<p ><span style="font-family:宋体;"><span style="font-size:16px;">我的万用表精度严重不够，这个不太好测试，因为太小了 都是nA级别了</span></span></p>
<p > </p>
<p > </p>
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