Internal and External FET control.

Question: Is it possible to control both the external and internal FET simultaneously with the same Hysteretic controllers?

 

Answer:

No, at any given point of time, either the internal FET or the external FET must be controlled with a single Hysteretic controller, but not both simultaneously. However, the change between the internal and external FET can be carried out on the fly using the API ‘HYSTCTRL_SetGateDriver (bSelect)’. A bSelect of 01 would choose internal driver, a value of 02 would choose external driver. System performance is not guaranteed if the register is written in a way to enable both internal and external MOSFETs and must not be attempted.