120V 3A half-bridge gate driver with 8V UVLO and CMOS inputs

The UCC2720x family of high-frequency

N-channel MOSFET drivers include a 120V bootstrap diode and high-side and low-side

drivers with independent inputs for maximum control flexibility. This allows for

N-channel MOSFET control in half-bridge, full-bridge, two-switch forward, and active

clamp forward converters. The low-side and the high-side gate drivers are

independently controlled and matched to 1ns between the turnon and turnoff of each

other.

An on-chip bootstrap diode eliminates

the external discrete diodes. Undervoltage lockout is provided for both the

high-side and the low-side drivers forcing the outputs low if the drive voltage is

below the specified threshold.

Two versions of the UCC2720x are

offered. The UCC27200 has high noise immune CMOS input thresholds while the UCC27201

has TTL compatible thresholds.