SLUSD37E October 2017 – November 2019 UCC28056
An integrated, high-current driver allows the UCC28056 controller to drive the power MOSFET switch directly. The controller limits the voltage applied to the DRV pin to VDRHigh. This limit enables a high VCC supply rail to drive the controller without exceeding the VGS voltage rating of the power MOSFET. This limit also reduces power dissipation in the internal gate driver when the controller operates from a VCC rail that is higher than VDRHigh.
The integrated driver is protected against temporary short circuit of the DRV and GND pins.