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UCC27735

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700V 4A half-bridge gate driver with 8V UVLO, interlock, and enable

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Data sheet

UCC27735

ACTIVE
Data sheet Order now

Product details

Bootstrap supply voltage (max) (V) 700 Power switch IGBT, MOSFET Input supply voltage (min) (V) 6 Input supply voltage (max) (V) 21 Peak output current (A) 4 Operating temperature range (°C) -40 to 150 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.032 Rise time (ns) 7 Fall time (ns) 6 Switch node voltage (V) -23 Features Enable, Interlock
Bootstrap supply voltage (max) (V) 700 Power switch IGBT, MOSFET Input supply voltage (min) (V) 6 Input supply voltage (max) (V) 21 Peak output current (A) 4 Operating temperature range (°C) -40 to 150 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.032 Rise time (ns) 7 Fall time (ns) 6 Switch node voltage (V) -23 Features Enable, Interlock
SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm)
  • 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
  • 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

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.

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.
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Technical documentation

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* Data sheet UCC2773x High-Speed, 700V Half-Bridge Gate Drivers with 3.5A, 4A Drive Strength and up to 200V/ns Noise Immunity datasheet (Rev. A) PDF | HTML Sep 30, 2025
Application note Selecting Gate Drivers for HVAC Systems (Rev. A) PDF | HTML Nov 7, 2025
Application note Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET PDF | HTML Mar 25, 2024
Application note Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters PDF | HTML Jan 24, 2024
Application note Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs PDF | HTML Jan 22, 2024
Technical article Selecting the right level of integration to meet motor design requirements PDF | HTML Jan 4, 2024
Application note Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) PDF | HTML Sep 8, 2023
Application note Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) PDF | HTML Feb 17, 2022
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) Apr 7, 2021
Application note Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. May 12, 2020
Application brief External Gate Resistor Selection Guide (Rev. A) Feb 28, 2020
Technical article How to achieve higher system robustness in DC drives, part 3: minimum input pulse PDF | HTML Sep 19, 2018
Technical article How to achieve higher system robustness in DC drives, part 1: negative voltage PDF | HTML Apr 17, 2018

Design & development

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Evaluation board

UCC27735Q1EVM — UCC27735-Q1 evaluation module

The UCC27735-Q1 evaluation module (EVM) is developed so the UCC27735-Q1 driver performance can be evaluated and compared to data sheet parameters, or externally connected to power devices with provisions for source and sink gate-resistance flexibility. The UCC27735Q1EVM evaluation board uses (...)
User guide: PDF | HTML
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Simulation model

UCC27735 and UCC27735-Q1 PSpice Model

SLUM955.ZIP (25 KB) - PSpice model
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Calculation tool

UCC2773X-CALC — UCC2773x Schematic Review Template

UCC2773x Schematic Review Template
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SOIC (D) 14 Ultra Librarian
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