TPS62135: Need your help to check the PG spec of TPS62135

Alec Chen

Part Number: TPS62135

Dear Sir,

Our Customer is asking about the PG spec of TPS62135. here is the parameters about PG signal as below.

for the PG signal failing(% of Vout) spec, the Min. is only 3% which it might be reached the spec when RD is doing the transient test. Therefore, could you kinldy let us check if this spec is correct? or is there there min timing for Voutto drop 3% of Vout in order to trigger the PG signal to be low?

above, please kinldy help us check with this and if there is any question, please let me know

Cheers

Alec

over 6 years ago

0 JohnTucker over 6 years ago

TI__Guru**** 191445 points

Alec,

What that means is that PGOOD will be asserted when the fed back portion of the output voltage rises to 93% minimum, 96% typical and 98% maximum of the reference voltage of 0.7 V. The hysteresis is 3% minimum an 4.5 % maximum, so the falling threshold may be as high as 98% - 3% = 95% or as low as 93% - 4.5% = 88.5%.

0 Alec Chen over 6 years ago in reply to JohnTucker

Intellectual 730 points

Dear John,

Thanks for the the quick feedback. we will explain to the customer about this

Cheers

Alec

Power management

Power management forum

TPS62135: Need your help to check the PG spec of TPS62135