TPS54628: Current limit delay time

tateo yamashiro

Part Number: TPS54628

Hi,

We got a question from customer about TPS54628.
Could you help us?

[Question]
How much is the delay time between detecting current limit and turning off the FET? They don't need gurantee. They will use it as reference.

Best Regards,
tateo

over 7 years ago

0 Anthony Lang over 7 years ago

TI__Expert 4875 points

Hi Tateo,

For TPS54628, the hiccup delay is 250us. After OC and UVP comparator detects, 250us is waited to shunt down FETs and enters hiccup mode. You could check on the details in section 7.3.4 in datasheet. Thanks!

Best,

Anthony

0 tateo yamashiro over 7 years ago in reply to Anthony Lang

Guru 10890 points

Hi, Sorry for confusing you. They want to know the detecting delay time of the OCL comparator. How much is the delay time?

Best Regards,
tateo

0 Anthony Lang over 7 years ago in reply to tateo yamashiro

TI__Expert 4875 points

Hi Tateo,

I checked the simulation specs. The OCL couter delay is 101ns. Thanks!

Best,

Anthony

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TPS54628: Current limit delay time