bq25895 can't charge, urgent

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bq25895 can't charge, urgent [Copy link]

The bq25895 chip is connected to a lithium battery, and then the charging current is read as 0. The battery voltage (BAT) has been stable at 3.9v. The LED light connected to STAT has been flashing. The data read from REG0C is 0x02. According to the data sheet, it should be an NTC error.

BQ25895 settings: Charging voltage: 4.318V ADC continuously converts, enables charging, and grounds the CE pin.

The values read are: bat voltage (REG0E): 3.924v, sys voltage (REG0F): 3.824v,

vbus voltage (REG11): 5.1v, charging current (REG12): 0

Error register (REG0C): 2 ts_persend (REG10): 0

Afterwards, I replaced the NTC with an adjustable resistor and kept changing the resistance. The actual TS voltage did change, but the above problem still exists. I don't know what the problem is. Please help me.

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The peripheral circuit parameters should be set according to the data sheet.

Is the reconnection correct?