This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ24610,3节锂电池串联,输入16V时充电正常,当把输入电压提高到24V时,芯片烧坏,求解释!!!

如题:上面是原理图

输入16V时充电正常,现在由于项目需要想把输入电压动态扩大,16-24V时都能正常充电;测试用24V输入充电,开始正常,板卡发热比较厉害,大概半小时就烫手了,上图电感L4很烫,继续下去芯片坏了,充电方波已经不正常;

想请问下大家有没有这样使用的?还是压差太大根本就不行,输入24V,3串充电12.6V 中间压差大概有12V?或者是外部器件参数已经不能满足要求了?

求解答。