Tool/software:
Hi，
The customer uses BQ24040 to charge the battery. After disconnecting the VIN power supply (unplugging the power output cable), it was found that there was a voltage of about 1.5V at the VIN end, and the chip current loss was approximately 2-3mA. The resistance of the ISET pin was 620 ohms. Please help analyze the cause.
The schematic diagram is as follows:
The waveform diagram of VIN after disconnecting the charging power supply is as follows:
Thanks！
