BQ76952: Questions for LD pin

Beginner

Intellectual 2421 points

Part Number: BQ76952

Tool/software:

Wondering to consult with you more about bq76952 LD pin.

Ipullup exist condition?
1. When AFE is in normal mode w/ no any protection trigger OR
2. Only in SCP or ODDP case
The pulldown 80K ohm is only activated in shutdown mode?

6 months ago

0 Alexis_H 6 months ago

TI__Mastermind 18005 points

Hello Beginner,

1. The load detect function should only start enabling the current source when load detect is enabled and there is a fault. (SCD or overcurrent in discharge). This previous post may help explain it further: Recovery from SCDL by Load Detect.

2. Correct, the internal pulldown resistance on the LD pin should be ~80kOhms when in SHUTDOWN mode.

Best Regards,
Alexis

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BQ76952: Questions for LD pin