BQ76952: Use TS2 pin as the wake up pin and temperature pin

Jack Shen2

Part Number: BQ76952

I have a question about TS2 pin. Can TS2 pin be used as temperature pin and also the wake up pin? base on the TRM, it seems like if we use TS2 as the temperature pin, then the device might not able to enter the shutdown mode. If that's the case, does that mean with this setting, the device won't enter the shutdown mode? Please correct me if I am wrong.

Thanks,

Jack

over 3 years ago

+1 Caleb Perez over 3 years ago

TI__Genius 11315 points

Hey Jack,

The TS2 pin cannot be used as a temp pin and the wake up pin at the same time. During shutdown, TS2 is regulated at 5V. When TS2 is pulled low (like through a thermistor connection) the device will wake up.

Thanks,
Caleb

0 Jack Shen2 over 3 years ago in reply to Caleb Perez

TI__Expert 4435 points

I see. Thank you for the explanation.

Power management

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BQ76952: Use TS2 pin as the wake up pin and temperature pin