Si825xx Isolated Gate Drivers

Silicon Labs’ Si825xx products are robust gate drivers for Silicon, GaN or SiC based power converter systems such as SMPS or inverters. This family has upgraded features such as a high voltage input (logic side) VDD supply pin that supports up to 20 V. It has a robust 30 V driver VDD capability, low latency for tighter loop control, high CMTI of 125 kV/µs, -5 V voltage withstand on output pins and over-temperature protection. These also feature a driver boost stage which provides an increased current drive capability during the Miller plateau region for faster turn-on times. Based on Silicon Labs’ proprietary CMOS capacitive isolation technology, these products deliver superior performance in terms of robust isolation rating to enable driving state-of-the-art GaN or SiC FETs for maximizing system efficiency while ensuring safety with features such as UVLO protection and dead-time programmability.

Peak output current
4 A
Low turn-on current
3.6 mA

Common Specs

  • HS/LS isolated drivers in one package
  • 5.0 kVRMS isolation
  • DIS or EN pin for asynchronous shutdown option
  • Input VDD of 4.5 V – 20.0 V
  • 4.0 A symmetric sink/source peak output
  • 30 ns max propagation delay
  • Transient immunity: >125 kV/μs
  • Robust 30 V driver side supply
  • Over temperature protection
Status
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Part Number Isolation Rating (kVrms) Peak Output Current (A) UVLO Voltage (V) Input Type Output Configuration Package Type Overlap Protection and Dead Time Control
5 4.0 5 VIA, VIB High Side / Low Side WB SOIC14
5 4.0 8 VIA, VIB High Side / Low Side WB SOIC14
5 4.0 12 VIA, VIB High Side / Low Side WB SOIC14
5 4.0 5 VIA, VIB High Side / Low Side WB SOIC14
5 4.0 8 VIA, VIB High Side / Low Side WB SOIC14
5 4.0 12 VIA, VIB High Side / Low Side WB SOIC14

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