Other Parts Discussed in Thread: UCC27511A-Q1, , UCC27511A, UCC27511, BQ77905
I want to drive 10 N Channel fets on both the Charge and Discharge side. IRLB3813 that require 57nC of gate charge each.
Can the drivers in the BQ76920 handle this or do I need a more powerful driver? If so, what do you recommend? UCC27511A-Q1? Can this driver (UCC27511A) be used on the CHG side, as it it not high impedance when driven low?
Also, question on why limiting current to charge CHG gate in data sheet? I am assuming I would want to use a UCC27511A-Q1 low side driver on BOTH DSG and CHG gates. I would think I would remove diode and R1 and replace with gate driver? If I have hundreds of amps flowing through CHG and DSG fe's, I woiuld think I switching FETS off as quickly as possible would limit linear region operation. What am I not considering?