Isolated Gate Drivers

Self-Powered Isolated GaN FET Driver with Regulated Bipolar Output

AHV85111

The AHV85111 offers precise and flexible gate drive for GaN FETs, with a regulated bipolar output, adjustable positive rail, and integrated bias supply for simplified design and improved dv/dt immunity.

Download Datasheet
Evaluation Board

Product Details

Top Features

  • Transformer isolation barrier
  • Power-Thru integrated isolated bias
    • No need for high-side bootstrap
    • No need for external secondary-side bias  
  • AEC-Q100 Grade 2 qualification
  • Bipolar drive output with adjustable regulated positive rail
  • Built-in primary-side 3.3V REF bias output
  • 50ns propagation delay
  • Separate drive output pins: pull-up (2.8 Ω) and pull-down (1.0 Ω)
  • Supply voltage 10.8 V < VDRV < 13.2 V
  • Undervoltage lockout on primary VDRV and secondary VSEC
  • Enable pin with fast response
  • Continuous ON capability—no need to recycle IN or recharge bootstrap capacitor
  • CMTI > 100 V/ns dv/dt immunity
  • Creepage distance 8.4 mm
  • Safety Regulatory Approvals
    • 5 kV RMS VISO per UL 1577
    • 8 kV pk VIOTM maximum transient isolation voltage
    • 1 kV pk maximum working isolation voltage
Target Application

Part Number Specifications and Availability

Part Number Specifications and Availability

AHV85111 Product Overview

The AHV85111 isolated gate driver is optimized for driving GaN FETs in multiple applications. An isolated dual positive/negative output bias supply is integrated into the driver device, eliminating external gate drive auxiliary bias supply or high-side bootstrap.

Design Tools

ECAD FILE

AHV85111

AHV85111 ECAD Model Type Image
Webpage

Software Portal

Technical Documentation

Minimizing PCB Parasitic Effects with Optimum Layout of the Gate Driver Loop Applicable to AHV85110 AND AHV85111 Gate Drivers
Application Note

Minimizing PCB Parasitic Effects with Optimum Layout of the Gate Driver Loop Applicable to AHV85110 AND AHV85111 Gate Drivers

AHV85111 Design and Application Guide
Application Note

AHV85111 Design and Application Guide

Brochure: Solar Energy Harvesting
Brochure

Brochure: Solar Energy Harvesting

Comfort Through Sustainability - Unlock the Power of Heat Pump Innovation
Brochure

Comfort Through Sustainability - Unlock the Power of Heat Pump Innovation

DC Fast Charging: Faster and Farther
Brochure

DC Fast Charging: Faster and Farther

Precision in Motion: Powering the Future of Collaborative Robotics
Brochure

Precision in Motion: Powering the Future of Collaborative Robotics New

APEK85111KNH-02-T-MH- Evaluation Board User Guide
Guide

APEK85111KNH-02-T-MH- Evaluation Board User Guide

APEK85111KNH-01-T-MH Evaluation Board User Guide
Guide

APEK85111KNH-01-T-MH Evaluation Board User Guide

Power-Thru-Technology Infographic
Infographic

Power-Thru-Technology Infographic

Simplify Designs and Reduce Overall Systems Cost by Eliminating External Power Supplies
Technical Article

Simplify Designs and Reduce Overall Systems Cost by Eliminating External Power Supplies

Solving the Challenges of Increasing Power Density by Reducing Number of Power Rails
Technical Article

Solving the Challenges of Increasing Power Density by Reducing Number of Power Rails

Solving Gate Drive Challenges with Technology for Improved Power Design
Technical Article

Solving Gate Drive Challenges with Technology for Improved Power Design

Showing 4 of 12