Other Parts Discussed in Thread: TPS54527
Hi
My customer has question.
What is the delay time to startup of TPS54327 and TPS54527?
This question is needed to configure Sequence.
Best Regard
T Kishi
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Hi
This delay time should besically depend on EN and Vin rising time,
Vout begins to ramp up must satisfy two conditions, EN goes higher than threshold and VIN goes higher than VREG5 UVLO,
if Vin goes higher voltage>UVLO before EN ramp, once EN ramp to threhold, Vout begins to soft-start.
You can also refer to 7.4.1 and 7.3.3 in 54327 DS for details.
BR,
Yuchang
Thank you for reply.
I'm sorry.I understand my question is hard to understood.
I understand the following.
"This delay time should besically depend on EN and Vin rising time"
What I would like to know is that when EN = High after VIN goes up,
It is the delay time until Vout starts Soft Start.
I am sorry that there is no regulation, please cooperate.
Regard