TPS2411: how to increase the Oring FET turning on speed for TPS2411

Oliver Ou

Part Number: TPS2411
Other Parts Discussed in Thread: LM74700-Q1

Hi,

From the datasheet of TPS2411, the gate source current is only 300uA. So the Oring FET turning on speed is very slow, especially for multi FETs in high current application. The long switch-over time would cause output voltage drop at worst case condition when one PSU shut down.

Do we have a way to increase the gate turn on ability? or Do we have new generation products for high current application?

Thanks.

Oliver Ou

over 5 years ago

0 Karikalan Selvaraj over 5 years ago

TI__Genius 16305 points

Hello Oliver Ou,

For higher gate turn on current, we have LM74700-Q1 which is preview stage and has 7mA peak current to drive the gate pin during load transients.
Do you need a back-back MOSFET driving capability as well?

Regards,
Kari.

0 Oliver Ou over 5 years ago in reply to Karikalan Selvaraj

TI__Intellectual 2845 points

Hi Kari,
Thanks a lot for your suggestion, no back-back fet driving capability is required.

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TPS2411: how to increase the Oring FET turning on speed for TPS2411