UCC28951: PMP8740 purpose of Push-pull with RC impedance

Nicola Fiorucci

Part Number: UCC28951
Other Parts Discussed in Thread: PMP8740

Tool/software:

Hi,

based on PMP8740 reference design, what is the purpose of the RC network (100R + 0.1u + 0.022u) around the push-pull gate driver stage?

Thanks

1 month ago

0 Deepak K 1 month ago

TI__Intellectual 1120 points

Hi Nicola,

These resistors and capacitors are deriving the +Vcc and -Vcc required for the push-pull transistors from the gate signals itself and avoids the need of dedicated +Vcc and -Vcc supply.

Regards,

Deepak K

Power management

Power management forum

UCC28951: PMP8740 purpose of Push-pull with RC impedance