BQ24725A: 给电池充电时，MOSFET开关波形问题

您好，请参考下面内容

That waveform does look unusual. The customer should turn everything off and use an ohm meter to measure the impedance between the LODRV pin and ground to check if there is a high impedance that is affecting the waveform. The LODRV pin or the gate pin of the lower bridge MOSFET could also be damage and need to be replaced.

您好，

I don't see obvious issues with the resistance measurements. I attached an image of the LODRV waveform that I measured using the EVM, to show how a normal LODRV waveform looks.

I don't see obvious issues with the PCB design either. There are multiple possibilities on what could be affecting the waveform such as a damage IC, a damage  MOSFET, or a damage/ faulty BR13 resistor.

My recommendation would be to order the EVM board for further testing. I would also recommend confirming there is zero resistance between the LODRV pin and the gate pin of the lower bridge MOSFET on the customer board.