July 30, 2026

Integrated bias supply simplifies GaN power designs and eliminates bootstrap circuitry

Teledyne HiRel Semiconductors, a business unit of Teledyne Technologies  Incorporated and a leading supplier of high-reliability semiconductor solutions, with more than a decade of experience in gallium nitride (GaN) for aerospace, defense, space and industrial applications, today announced the release of the TDGD85110EP, an isolated, single-channel gate driver that simplifies the implementation of GaN transistors in high performance power conversion systems. 

As power systems evolve toward higher efficiency, greater power density and smaller size   and weight, designers are increasingly adopting GaN technology, whose higher switching  frequencies shrink magnetic components but raise the bar for gate-drive performance. The  TDGD85110EP meets that demand by integrating signal isolation and an isolated bias   supply into a single compact device, eliminating the need for external secondary-side bias   supplies or high-side bootstrap circuits. The result is a lower component count, simpler design and more  efficient system to support applications such as ac-dc and dc-dc power supplies, battery management systems, motor  drives, fast-charging infrastructure, uninterruptible power supplies (UPS) and aerospace and defense power systems. 

“The TDGD85110EP integrates key gate-drive functions into a single device, helping customers accelerate GaN adoption  while reducing system complexity,” said Mont Taylor, Vice President of Business Development at Teledyne HiRel  Semiconductors. “By combining isolation and bias generation in a compact solution, the device enables designers to more  fully realize the efficiency and power-density advantages of GaN technology.” 

Key Features

  • 5 kV RMS galvanic isolation 
  • Greater than 100 V/ns common-mode transient immunity (CMTI) 
  • Fast 50 ns propagation delay 
  • Supports high-voltage inputs greater than 10 V and low-voltage inputs greater than 6 V 
  • 100% tested for ac and dc parameters across three temperatures 
  • Qualified for operation from -55°C to +125°C 

ABOUT TELEDYNE HIREL SEMICONDUCTORS AND TELEDYNE AEROSPACE & DEFENSE ELECTRONICS

Teledyne HiRel Semiconductors, part of Teledyne Aerospace & Defense Electronics, delivers high-reliability  semiconductor solutions for aerospace, defense, space and industrial applications, with a focus on solving critical  customer challenges through standard, semi-custom and fully custom offerings. Teledyne Aerospace & Defense  Electronics provides a broad portfolio of highly engineered solutions for demanding environments across avionics,  energetics, electronic warfare, missiles, radar and surveillance, satellite communications, air and space, and test and  measurement. 

ABOUT TELEDYNE TECHNOLOGIES

Teledyne Technologies is a leading provider of sophisticated digital imaging products and software, instrumentation,  aerospace and defense electronics, and engineered systems. Teledyne’s operations are primarily located in the United  States, the United Kingdom, Canada, and Western and Northern Europe.