1 Features

• High-side, low-side configuration, with independent

inputs

• Maximum bootstrap voltage of +700V (HB pin)

• Peak output current of 4A sink, 3.5A source

• Typical 32ns propagation delay

• Propagation delay matching between HO/LO

within 6ns maximum

• VDD bias supply range of 10V to 21V

• Input pins capable of handling –6V

• Floating channel designed for bootstrap operation

• 200V/ns maximum common-mode transient

immunity on HS pin

• Input interlocking function (UCC2773x)

• Built-in 8V Undervoltage Lockout (UVLO) for both

channels

• SOIC 14-pin package, SOIC 8-pin package

2 Applications

• Half-bridge and full-bridge converters in offline AC

and DC power supplies

• EV/HEV OBC and DC-DC converters, auxiliary

inverters

• Large appliance and white goods PFC and motor

drive

• High-density switching power supplies for server,

telecom, IT, and industrial infrastructure

• Macro BTS power supplies, inverted buck-boost

• Battery energy storage systems (BESS) DC/DC

and DC/AC converters

3 Description

The UCC2773x is a 700V half-bridge gate driver with

3.5A source and 4A sink current capability, targeted

to drive power MOSFETs and IGBTs. The device

comprises of one ground-referenced channel (LO)

and one floating channel (HO) which is designed

to drive half-bridge configured MOSFETs and IGBTs

operating with bootstrap supplies. The device features

robust drive with excellent noise and transient

immunity including large negative voltage tolerance

on its inputs, high dV/dt tolerance, wide negative

transient safe operating area (NTSOA) on the switch

node (HS), and interlock.

The device accepts a wide range of bias supply input

from 10V to 21V and offers UVLO protection for both

the VDD and HB bias supply pins. The UCC2773x is

available in various packages and is rated to operate

from –40°C to 150°C.