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BQ25121: Bq25121

Part Number: BQ25121


Hi 

    I am using custom board with STM MCU and BQ25121 battery charger . While reading Voltage battery ,it is  not showing exact  battery voltage.

For example : Battery measured voltage (3.75V) - Read Value from Register is showing below

         

0x7C
0x68
0x0A
0x04
0x44
0xff
0xff

In this ,0x44 value is approximate  battery voltage .. Please explain ,why i am getting 0x7c and 0x68 and after 0x44 continously  i am getting 0xff  value from VBMON register.,

Regards

Rajalakshmi A