Prescaler of backup battery for MADC

Antony Lin

Other Parts Discussed in Thread: TPS65950

How to enable the resistive divider on backup battery for MADC (ADCIN9)? I can't find it in TRM, and can read the correct value from GPCH9_MSB & GPCH9_LSB .

Thanks!

Antony

over 15 years ago

0 Gandhar Dighe over 15 years ago

TI__Genius 15100 points

Hi Antony,

The prescaler is internal and is in the power sub-chip. It is enabled when the backup battery is charging (BBCHEN=1).

Are you setting BBCHEN to '1'? This is mentioned in TPS65950 TRM in MADC chapter.

Regards,

Gandhar.

Power management

Power management forum

Prescaler of backup battery for MADC