TPS543C20: VIN Range in Revision B

Hirotsugu Kobayashi

Mastermind 9540 points

Part Number: TPS543C20

Hi, team.

What is the reason why the VIN range of TPS543C20 was changed in Revision B?

My customers are designing with 12~15 Vin 1Vout 29 A.

Is there a possibility of being broken?

Can I extend the VIN range if it is less than 30 A?

Best Regards,

over 7 years ago

0 JohnTucker over 7 years ago

TI__Guru**** 191445 points

Kobayashi-san,
I can check the revision history tomorrow

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

Kobayashi-san,

Rev B does the following:

Reduce Vin Abs Max from 20V to 16V and Vin Operating Max from 16V to 14V
Add VIN-SW spec in abs.max and operating max table to specify MOSFET Vds.
Add a mandatory layout requirement to help reduce MOSFET stress

This is to reduce over voltage stress risk to the IC. You can contact us directly for more details.