TPS40428: Maximum current output support

RAHUL SHARMA52

Part Number: TPS40428

We are planning to use TPS40428 in our application :

VIN = 12V
Vout = 0.8V to 0.9V with 0.85V (nominal)
Current = 50A Max
Programmable through I2C
Output voltage should be programmable
Enable option

Please confirm is it support 60A current and I2C bus interface?

Can we set default boot voltage without programming to 0.85V?

0 Qian Chen over 8 years ago

Hello,

TPS40428 2phase design should be able to support 60A current.

The internal Vref is 0.6V in default. The Vout can be set to 0.85V by external resistor divider without programming.

Thansk

Qian

0 RAHUL SHARMA52 over 8 years ago in reply to Qian Chen

If a set default output voltage to 0.85V using external resister divider.

Can i able to change/set output voltage from 0.80V to 0.90V using I2C bus only without AVS bus.

Does it necessary to use AVS high speed bus?

Can i use only PMBus/I2C only ?

0 Qian Chen over 8 years ago in reply to RAHUL SHARMA52

Hello,

Yes, Vout can be changed by PMBus.

Thanks

Qian

0 RAHUL SHARMA52 over 8 years ago in reply to Qian Chen

Is it compatible with I2C interface from microcontroller ?

0 Qian Chen over 8 years ago in reply to RAHUL SHARMA52

TPS40428 is PMBus 1.1 compatible.
It should be compantible with I2C interface.

Thanks
Qian

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