TPS65581: Power up / Power down sequence function

Satoshi

Guru 19485 points

Part Number: TPS65581
Other Parts Discussed in Thread: TPS65580,

Is TPS65581 (and TPS65580) have internal Power up / down sequence function? or need to external SVS?

Datasheet is described power up / down image(figure-1 and 3), but function is not described.

If need to external Reset or Sequencer, is there reference design?

Best regards,

Satoshi

over 6 years ago

0 Zhao Ma over 6 years ago

TI__Genius 15135 points

Hi, Satoshi

TPS65581 doesn't have internal power up/down sequence.
We need external control signal to achieve the power up/down sequence, it means need to connect EN1~EN3 signal to MCU or Pgood signal from other ICs.

0 Zhao Ma over 6 years ago

TI__Genius 15135 points

Hi,

I have checked TPS65580, it is almost same with TPS65581.

it doesn't have internal power up/down sequence, and also need external control signal.

Power management

Power management forum

TPS65581: Power up / Power down sequence function