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
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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
Our self-powered devices provide high-speed gate driver & isolated supply all in one package.
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.
The table below shows our available products and those coming soon.
| 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 | Samplesstay updated |
| EVK name | Switch | Description | Gate driver used | Samples |
|---|---|---|---|---|
| EVK nameAPEK85110KNH-01-T-MH | SwitchGaN | DescriptionHalf-bridge bipolar driver-switch board | Gate driver usedAHV85110 | Samplesrequest samples |
The AHV85110 (Hey1011) gate driver is recommended as the 1st step to achieve highly-effective GaN designs.
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Wide bandgap transistors such as GAN and SiC require high bandwidth current sensors which XtremeSense(TM) TMR achieves without sacrificing accuracy and resolution
Lower propagation times = smaller dead times
Robust design and less components mean more reliability
No need to design a custom isolated supply into your power converter. It's already done for you with these Allegro drivers!
Eliminate additional components including extra magnetics, extra windings, extra silicon & passive components, and separate isolated supply module
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.
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.
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.
This enables the system designer to freely choose a resistor value for turn ON (pull-up) and turn OFF (pull-down).
