Part Number:BQ25895
Dear Sir/Madam,
My customer is using BQ25895 for 1S4P Li-ion configuration. he detected that battery voltage value is not correct. After investigation they found that when unit is operating on battery, the CPU cannot read the BQ25895 registers for charger IC Voltages & Current when Battery Pack Voltage is about 3v.
when Battery Pack voltage is 3.5v to 4.2v all reading are correct.
when the Battery Pack voltage drops to 3v, it cannot read the BQ25895 ADC values correctly.
Below are the values of Registers,these registers are ADC values for Battery Voltages & Current. Most register reading is correct except for Register 0x0E to 0x12
Can you help to advise the what to look for?
Best regards,
Kpk