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BQ76952: Configuring DCHG/DDSG pins for DCHG/DDSG functionality (Active HIGH)

Kyungjae Lee
Intellectual 650 points
Part Number: BQ76952

Hi,

I am trying to configure the  DCHG/DDSG pins for DCHG/DDSG functionality (Active HIGH). I have followed what's described in the documentation but couldn't get it to properly reflect the DCHG/DDSG status. I have configured both pins to 0x02 but they stay de-asserted even when the faults are triggered and the corresponding FETs are disabled (open). (The device is controlling the FETs in fully-autonomous mode.)

Could you share with me some insights?

I have also read through the following FAQ but the example was to configure these pins ACTIVE-LOW so didn't do much help.

[FAQ] BQ76952: Do the DCHG and DDSG signals on the BQ769x2 follow the CHG and DSG FET driver pin states?

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1237508/faq-bq76952-do-the-dchg-and-ddsg-signals-on-the-bq769x2-follow-the-chg-and-dsg-fet-driver-pin-states

Thank you,

Kyungjae Lee