BQ76952: BQ76952 Charger Detection in normal mode

Soren Li

Part Number: BQ76952

Hi,

How could bq76952 detect the charger is inserted in normal mode? Or need to close CHG/DSG FET and read pack pin voltage(cmd 0x36) by MCU.

over 5 years ago

0 Matt Sunna over 5 years ago

TI__Guru* 81034 points

Hi Soren,

With the FETs on, the only way to detect charger is with the current measurement. With FETs off you can compare the PACK voltage to top of stack (cmds 0x36 and 0x34).

Best regards,

Matt

0 Soren Li over 5 years ago in reply to Matt Sunna

Prodigy 20 points

Hi Matt,

Thank you for your quick reply. I got the answer.

Soren,

Power management

Power management forum

BQ76952: BQ76952 Charger Detection in normal mode