CSD19532Q5B: Blanking time spec

Brian Chan

Expert 3950 points

Part Number: CSD19532Q5B

Tool/software:

Hi Team

May I know the blanking window of CSD19532Q5B?

Which means how long can the MOSFET afford to OCP when the power switching and the MOSFET won't shut down.

you can see below inrush current and the MOSFET under blanking window won't trigger any protection.

BRs

Brian

3 months ago

0 John Wallace1 3 months ago

TI__Mastermind 32415 points

Hello Brian,

Thanks for the inquiry. There is no defined blanking time or overcurrent protection for the FET. Any sort of blanking or protection to turn off the FET during an overcurrent event is controlled externally. How long the FET will survive during overcurrent depends on the power dissipation in the FET and the junction temperature rise which can be determined from the normalized transient thermal impedance graph in Figure 1 of the datasheet. Please see the link below for more information on using the transient thermal impedance graph from the datasheet. Please let me know if you have any questions.

https://www.ti.com/lit/pdf/SLUAAO2

Best Regards,

John Wallace

TI FET Applications

0 John Wallace1 3 months ago in reply to John Wallace1

TI__Mastermind 32415 points

HI Brian,

Following up to see if your issue has been resolved. Please let me know.

Thanks,

John

0 John Wallace1 3 months ago in reply to John Wallace1

TI__Mastermind 32415 points

HI Brian,

Since I have not gotten a response from you, I assume your issue has been resolved and will close this thread.

Thanks,

John

Power management

Power management forum

CSD19532Q5B: Blanking time spec