隔离式栅极驱动器

带有集成隔离偏置电源的自供电隔离式 SiC 驱动器

AHV85311

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

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

Part Number Specifications and Availability

View Full Specification Details

AHV85311K15NKTR

working_voltage_v
1500
reel_size
500
channels
Single
switch
SiC, GIT GaN
polarity
Bipolar
package
NK
market
Automotive, Industrial

AHV85311K15NLTR

working_voltage_v
1500
reel_size
500
channels
Single
switch
SiC, GIT GaN
polarity
Bipolar
package
NL
market
Automotive, Industrial

AHV85311K18NKTR

working_voltage_v
1500
reel_size
500
channels
Single
switch
SiC
polarity
Bipolar
package
NK
market
Automotive, Industrial

AHV85311K18NLTR

working_voltage_v
1500
reel_size
500
channels
Single
switch
SiC
polarity
Bipolar
package
NL
market
Automotive, Industrial

AHV85311K20NKTR

working_voltage_v
1500
reel_size
500
channels
Single
switch
SiC
polarity
Bipolar
package
NK
market
Automotive, Industrial

AHV85311K20NLTR

working_voltage_v
1500
reel_size
500
channels
Single
switch
SiC
polarity
Bipolar
package
NL
market
Automotive, Industrial

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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