Isolated Gate Drivers

Fully integrated isolated gate drivers for GaN, MOS, and SiC

GaN and SiC power devices are expected to rapidly gain market share in electric vehicle and green energy applications. Allegro’s isolated gate driver solutions, acquired from our 2022 Heyday acquisition, use a single, small-footprint package that integrates an isolated gate driver, an isolated power supply, and associated passive components. This significantly reduces system design time and complexity and makes it possible for designers to take advantage of the full efficiency benefits that WBG switches provide. Additionally, the reduced system design time and complexity help alleviate the need for additional engineering and design resource

The Power of Simplicity

Our self-powered devices provide high-speed gate driver & isolated supply all in one package.

  • Say goodbye to bootstrap components
  • Remove bulky DC-DC isolated power modules
  • Unlock new performance & efficiency levels

The Power of Simplicity

Our self-powered devices provide high-speed gate driver & isolated supply all in one package.

  • Say goodbye to bootstrap components
  • Remove bulky DC-DC isolated power modules
  • Unlock new performance & efficiency levels

 

This is what YOU can achieve

PCB comparisons between competitor and Allegro Power Thru technology

 

All at once.

Power-Thru Technology

Featuring our Power-Thru technology, Allegro gate drivers are built on proven CMOS silicon technology and can drive MOSFETs as well as the new wide bandgap GaN and SiC FETs. 

Learn more

Power-Thru Technology

Featuring our Power-Thru technology, Allegro gate drivers are built on proven CMOS silicon technology and can drive MOSFETs as well as the new wide bandgap GaN and SiC FETs. 

Learn more

Growing Product Range

The table below shows our available products and those coming soon.


HV Isolated Gate drivers

Driver Switch #Channels Polarity Working Voltage Isolation Package Availability Datasheet Samples
Driver AHV85110 Switch GaN #Channelssingle Polarity unipolar Working Voltage630 Isolation5KV PackageNH Availabilityavailable Datasheetrequest full datasheet Samplesrequest samples
Driver AHV85111 Switch GaN #Channelssingle Polarity bipolar Working Voltage630 Isolation5KV PackageNH Availabilityavailable Datasheetrequest full datasheet Samplesrequest samples
Driver AHV85310 Switch SiC #Channelssingle Polarity bipolar Working Voltage1500 Isolation5KV Package  Availabilitycoming soon Datasheet  Samplesstay updated

 

HV Isolated Evaluation Boards

EVK name Switch Description Gate driver used Samples
EVK nameAPEX85110KNH-01-T-MH SwitchGaN DescriptionHalf-bridge bipolar driver-switch board Gate driver usedAHV85110 Samplesrequest samples

 

Allegro Driver Recommended by GaN Systems in Bodo's Power System December Issue

The AHV85110 (Hey1011) gate driver is recommended as the 1st step to achieve highly-effective GaN designs.

 

Read full article here

Gate Drivers for Any Application

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xEV and Charging

Solar panels and wind turbines for renewable energy

Solar Energy

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Industrial

Photo of servers with light

Datacenter Servers

Creating Superior Modules

Reduce switching losses

Lower propagation times = smaller dead times

Increase reliability

Robust design and less components mean more reliability

Design with Ease

No need to design a custom isolated supply into your power converter.  It's already done for you with these Allegro drivers!

Reduce Module Weight

Eliminate additional components including extra magnetics, extra windings, extra silicon & passive components, and separate isolated supply module

Unique Gate Driver Benefits

No need for an isolated supply

With Allegro's isolated driver you don't need a separate isolated supply.  This means lower BOM count, less PCB area and improves the robustness and EMI performance of your converter.

Short propagation time

Both the ON and OFF propagation times are very short (25ns typ).  This makes dead-time management between switch cycles easy to manage and helps to maximize the efficiency of the power converter.

Continuous ON time capability

Would you like to drive your switch ON or OFF for a long time without having to worry about recycling energy into a bootstrap capacitor?  With the Allegro isolated drivers that's taken care of for you.  Infinite ON and OFF time capability comes as standard.

Separate pull-up/pull-down pins

This enables the system designer to freely choose a resistor value for turn ON (pull-up) and turn OFF (pull-down).