TPS22968 input power sequencing

tateo yamashiro

Guru 10890 points

Other Parts Discussed in Thread: TPS22968

My customer has a question about TPS22968.
Could you tell me about question.

[Question]
Is there any sequence requirement between Vin1, Vin2 and Vbias at TPS22968 Power ON and OFF?

Best regards,

tateo

over 9 years ago

0 Adam Hoover over 9 years ago

TI__Expert 5275 points

Hi Tateo,

Vin1 & Vin2 cannot turn on without Vbias supply. There is no dependency between Vin1 and Vin2. The control of the two channels is completely independent.

Best Regards,

Adam Hoover

DLS Applications

0 tateo yamashiro over 9 years ago in reply to Adam Hoover

Guru 10890 points

Thank you for your reply.

I have a one more question.

Do you have any problem if the device is used to input only Vbias without Vin1 and Vin2?
And do you have any problem if the device is used to input only Vin1 and Vin2 without Vbias?

Best regards,

tateo

0 Adam Hoover over 9 years ago in reply to tateo yamashiro

TI__Expert 5275 points

Hi Tateo,

There should be no problem with either of those 2 cases.

Regards,

Adam

Power management

Power management forum

TPS22968 input power sequencing