TPS2H160-Q1: The current on eacn IN pin at INx=High with DIAG_EN=High

Yoshikazu Kawasaki

Part Number: TPS2H160-Q1

Tool/software:

Hello,

I have a question related to the thread shown below. I looked through all the E2E thread, but they don't tell me the answer I need.

TPS2H160-Q1: Input current on IN pins - Power management forum - Power management - TI E2E support forums

My customer would like to connect capacitors on INx pins to maintain INx=High during their MCU becomes off unexpectedly like by the noise resetting the MCU. Then they need the current consumption on INx pins to know the capacitor value. Would you please tell me the current on INx pins at the conditions shown below? The datasheet shows INx pins have internal pull down resistors of 175kOhm(typ), but my customer would like to know the other current that will be required from the condition of DIAG_EN=INx=High.

Vvs = 12V, DIAG_EN = INx = High, CS = open, Vcl = 0V, Voutx = 12V, Vther = 0V, Tj = 25degC

Best Regards,

Yoshikazu Kawasaki

2 days ago

+1 Nicholas Petersilge 1 day ago

TI__Intellectual 2710 points

Hi Yoshikazu,

the IN pins are digital pins and do not have much current draw, The pull down resistor is the only current draw on the IN pins so you can find the current on the pin by dividing the voltage of your MCU by the pull down resistor

Best Regards,
Nicholas Petersilge

0 Yoshikazu Kawasaki 1 day ago in reply to Nicholas Petersilge

Intellectual 861 points

Hello Nicholas-san,

Thank you very much for your quick reply.

Best Regards,

Yoshikazu Kawasaki