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Adding a NPN/PNP buffer to gate driver output of TPIC44H01

Other Parts Discussed in Thread: TPIC44H01

I have a customer who wants to use the TPIC44H01 high side driver to PWM an external MOSFETs at 15kHz.  However, the gate driver current of the TPIC44H01 is only +/- 2mA so, they are considering adding a boost off the charge pump using a NPN/PNP .  Will fault diagnostics be implicated?  Do you see any issue with this approach?

Thank you.

John Rice