TPS543B20: TPS543B20 Iocp

Kazuhiko Hirano

Genius 15448 points

Part Number: TPS543B20
Other Parts Discussed in Thread: TPS543C20A, TPS543C20

Hello,

At equation 3) in the TPS543B20 datasheet revB, divided by 16 was changed to divided by 14, why?

Best regards,

K.Hirano

over 6 years ago

0 JohnTucker over 6 years ago

TI__Guru**** 191445 points

Hirano-san,

Let me see if I can trace the history of that change. It may take a few days. The person most likely to know is out of the office.

0 Henry Nguyen over 6 years ago

TI__Intellectual 2460 points

Hello Hirano,

It changed to reflect the current limit trimmed value.

Kit

0 Kazuhiko Hirano over 6 years ago in reply to Henry Nguyen

TI__Genius 15448 points

Kit,

Thank you for your response.

Let me ask some more.

What is actually trimmed for the current limit?

Could you elaborate?

How about TPS543C20 and TPS543C20A?

For those devices, divided by 16 is still valid?

Best regards,

K.Hirano

0 Henry Nguyen over 6 years ago in reply to Kazuhiko Hirano

TI__Intellectual 2460 points

Hi Hirano,
TPS543C20 and TPS543C20A: the factor 16 does not change. The factor 16 is only change in TPS543B20 to 14 which reflected to ILIM (11.2uA) and Rdson (higher than TPS543C20/A version).
Kit

Power management

Power management forum

TPS543B20: TPS543B20 Iocp