尊敬的TI工程师您好:
我公司在生产一款带有3个无刷直流电机的产品,一节18650供电,电源管理芯片为bq24295,然后由TPS61088生压到8v给电机供电,但是当三个电机运行到特定相对方位时整个系统就会掉电,图分别是原理图,layout和输出电压电流波形
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BQ24295的BAT与SYS之间MOSFET带放电过流保护,IBATFET_OCP=5.5A min。你的实验结果说明系统瞬间电流达到了保护点,会引起内部MOSFET关闭。建议将TPS61088直接从BAT取电。