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Si823Hx Robust Isolated Gate Drivers for MOSFETs and IGBTs

Silicon Labs’ upgraded family of ISOdrivers are designed for silicon, GaN, or SiC-based power converter systems

Image of Silicon Labs' Si823Hx Robust Isolated Gate Drivers Silicon Labs' Si823Hx ISOdrivers are ideal for driving power MOSFETs and IGBTs used in a wide variety of switched-power and motor control applications. Each device combines two isolated gate drivers into a single package for high-power applications. The Si823Hx includes devices with single- or dual-control inputs with independent or high-side/low-side outputs. These drivers can operate with a 3.0 V to 5.5 V input VDD and a maximum drive supply voltage of 30 V.

These drivers utilize Silicon Labs' proprietary silicon isolation technology, supporting up to 5 kVRMS for 1-minute isolation voltage. This technology enables high CMTI (125 kV/µs), lower propagation delays and skew, little variation with temperature and age, and low part-to-part matching. This driver family also offers some unique features such as overtemperature protection, output undervoltage lockout (UVLO) fault detection, dead-time programmability, and fail-safe drivers with default low, in case of loss of input-side power. The Si823Hx family offers longer service life and dramatically higher reliability compared to opto-coupled gate drivers.

Features
  • Single or dual isolated drivers in one package
    • 2.5 kVRMS and 3.75 kVRMS isolation options
    • EN pin for enhanced safety or DIS pin option
  • PWM and dual-driver versions
  • VDDI of 3.0 V to 5.5 V
  • 4.0 A sink/source peak output
  • High electromagnetic immunity
  • 30 ns max propagation delay
  • Transient immunity: >125 kV/µs
  • Programmable dead-time: 20 ns to 200 ns
  • Deglitch and noise filter options for robust operation in noisy environments
  • Wide operating temperature range: -40°C to +125°C
  • RoHS-compliant packages
  • AEC-Q100 qualification
  • Automotive-grade OPNs available
Automotive applications
  • Onboard chargers
  • Battery management systems
  • Charging stations
  • Traction inverters
  • Hybrid electric vehicles
  • Battery electric vehicles
Industrial applications
  • Power delivery systems
  • Motor control systems
  • Isolated DC/DC power supplies
  • Lighting control systems
  • Solar and industrial inverters

Si823Hx Robust Isolated Gate Drivers for MOSFETs and IGBTs

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H1BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO480 - ImmediateView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H2BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO470 - ImmediateView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H3BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO480 - ImmediateView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H4BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO470 - ImmediateView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H5BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO480 - ImmediateView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H6BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO480 - ImmediateView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H7BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO480 - ImmediateView Details
2.5KV DUAL GATE DRIVERS, LOW PROSI823H8BB-IS12.5KV DUAL GATE DRIVERS, LOW PRO480 - ImmediateView Details

Development Kits

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
SI823H2 DEVELOPMENT KITSI823H2-KITSI823H2 DEVELOPMENT KIT96 - ImmediateView Details
SI823H9 DEVELOPMENT KITSI823H9-KITSI823H9 DEVELOPMENT KIT98 - ImmediateView Details
Published: 2019-08-27