AHV85311 隔离栅极驱动器经过优化，适用于驱动电源和转换应用（车载充电器、DC/DC 转换器、太阳能逆变器）中的分立式 SiC FET。作为 Power-Thru 系列的一员，它独特地集成了次级栅极驱动偏置电源，从而降低了物料清单 (BoM)、空间和成本。
Product Details
Product Details
Top Features
- Power-Thru integrated isolated bias supply
- No high-side bootstrap or external bias
- Bipolar drive, selectable regulated positive/negative rails
- Capable of delivering up to 130 nC gate charge at 25 V
- 50-ns prop delay, <10 ns skew & pulse-width-distortion
- Separate output pins pull-up (6 A) & pull-down (6 A)
- Miller clamp (internal & external options)
- Supply voltage 10.5 V < VDRV < 13.2 V
- UVLO on primary VDRV and secondary VSECP supply rails
- EN enable input and FAULT output pins
- Over-temperature protection
- CMTI > 100 V/ns dv/dt immunity
- Low input-output capacitance <3 pF
- Wide operating temperature range TA -40°C to 125°C
- Reinforced isolation, package creepage/clearance > 8 mm
- Safety Ratings
- Dynamic offset cancellation
- 5.7 kV RMS VISO per UL 1577
- 8 kV pk VIOTM maximum transient isolation voltage
- 1.5 kV pk VIORM working isolation voltage
Target Application
- DC-DC Converter
- Auxilary Inverter
- On-board Charger
- Server Power
- C&I Solar String Inverters
Part Number Specifications and Availability
Allegro High Voltage Gate Drivers
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 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
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