UCD9081: Power sequencer recommendation

JH Shin

Mastermind 8160 points

Part Number: UCD9081
Other Parts Discussed in Thread: UCD9090A

Hello,

My customer is looking for a power sequencer that meets the conditions below.

- At least 6 sequenced outputs and high enable control possible

- Power sequence control as shown in the diagram below is possible

- The above sequencing control is possible without prior external programming or real-time MCU control.

Please recommend a suitable power sequencer product.

Thank you.

over 1 year ago

0 yihe over 1 year ago

TI__Guru 60800 points

I would recommend either UCD9081 or UCD9090A. If customer want to better ADC and timing accuracy, UCD9090A is the one.

Regards

Yihe

0 Hoony Yoon over 1 year ago in reply to yihe

Prodigy 20 points

Dear Yihe

I'm interested in UCD9081 for our development products.
I would like to known the default setting of UCD9081 without prior external programming or real-time MCU control.
Please check the default operation of the EN1~8 signals.

Regards

0 yihe over 1 year ago in reply to Hoony Yoon

TI__Guru 60800 points

Please refer the UCD9081 EVM guide to understand the default settings. https://www.ti.com/lit/pdf/slvu249

Each customer has to tune the setting to fit own design need.

Regards

Yihe

0 Hoony Yoon over 1 year ago in reply to yihe

Prodigy 20 points

I've confirmed that in the docs(refer to slva275c.pdf).
Thank you for your support.

Regards

0 yihe over 1 year ago in reply to Hoony Yoon

TI__Guru 60800 points

That's great to know.

Regards

Yihe

Power management

Power management forum

UCD9081: Power sequencer recommendation