TPS2559: About Short Circuit Shutoff time

Tsukui Yusuke

Guru 21930 points

Part Number: TPS2559

Hi,

Could you tell me about short circuit shutoff.
Customer wants to delay the time of short circuit shutoff.
Is there a way to delay short circuit shutoff?
(For example, adding a capacitor to the ILIM pin.)
Please tell me how to delay from 3.5us.

Best Regards,
Yusuke

over 5 years ago

0 Bob Ma over 5 years ago

TI__Expert 8980 points

Hi, Tsukui,

I will discuss this with designers and reply you then.

Regards,
Bob

0 Tsukui Yusuke over 5 years ago in reply to Bob Ma

Guru 21930 points

Bob-san,

Thank you for your response.
I am looking forward to your reply.

Best Regards,
Yusuke

0 Bob Ma over 5 years ago in reply to Tsukui Yusuke

TI__Expert 8980 points

Hi, Yusuke-san,

This response time is related to Vin, when Vin is smaller the response time will be longer.

You can make Vin smaller or use smaller input cap.

Just curious, why you want this response time longer? Most of customer want it to be shorter.

Regards,
Bob

Power management

Power management forum

TPS2559: About Short Circuit Shutoff time