Hello,
We'd like to reduce the heating that results in using a diode for input reverse current blocking (D2 in Fig. 1 of the datasheet). Any problems if we replace it with a PFET?
We would configure the PFET the same as Q1 in the EVM, with its gate tied to PGND. We would also use the capacitor and zener that are in the EVM, C24 and D11, for FET protection. Only one PFET would be used, not two mounted back-to-baxk, since we don't need to control the input current flow.
Since the input power supply is permanently connected we'd also like to remove the input series resistor/capacitor combination, R11 and C2 in Fig. 1 of the datasheet. Any problems doing that? Should the input capacitance be adjusted in any way? Or is 2x10uF still OK? We're working on two products, charging a 4S pack at 14.4V. One charges at 2A and another at 5A.
Thank you!
John
