TPS4H000-Q1: If 1 output hits current limit, can the other 3 output operate normally?

Yoshiki Ochi

Genius 9455 points

Part Number: TPS4H000-Q1

Hi team,

If 1 output hits current limit, does 1 output clamp output current can the other 3 output operate normally?

Or then does all 4 outputs become clamp output current?

Also, does fault reporting say which pin is in over current state?

Regards,
Ochi

over 5 years ago

0 Timothy Logan over 5 years ago

TI__Mastermind 34935 points

Ochi-san,

If the current limit limit of one channel is hit then the other channels will continue normal operation. If the total power being consumed by the device causes it to heat up to the absolute thermal shutdown of the device (160C) then all of the channels will be shut off.

The fault pin is ORed together for all of the channels- meaning if one of the channels has a fault it will be ORed on the same fault pin.

0 Yoshiki Ochi over 5 years ago in reply to Timothy Logan

TI__Genius 9455 points

Hi Logan,

Thank you! I understood this operation.

Regards,
Ochi

Power management

Power management forum

TPS4H000-Q1: If 1 output hits current limit, can the other 3 output operate normally?