LM5050-1-Q1: Can this device support 150k frequency?

Sherry Liang

Genius 10255 points

Part Number: LM5050-1-Q1
Other Parts Discussed in Thread: UCC24612, LM5050-1

Dear team,

Can our device support 150k frequency and work as a Synchronous Rectifier Controller like UCC24612?

Thanks & Best Regards,

Sherry

over 4 years ago

0 Praveen GD over 4 years ago

TI__Guru 57737 points

Hi Sherry,

You can see the gate drive strength of LM5050 is much lower than that of UCC24612. This means that the LM5050 cannot turn ON the FET as fast as UCC24612 because lower gate drive strength corresponds to more time to charge the gate capacitance of the FET.

UCC24612: