Si826x Isolated Gate Drivers

The Silicon Labs family of Si826x ISOdrivers provides pin-compatible, drop-in upgrades for popular gate drive optocouplers. The devices are ideal for driving power MOSFETs and IGBTs used in a wide variety of inverter and motor control applications.  

The Si826x isolated gate drivers utilize the Silicon Labs proprietary silicon isolation technology, supporting up to 5.0 kV RMS withstand voltage per UL1577. Our isolator technology enables higher-performance, reduced variation with temperature and age, tighter part-to-part matching, and superior common-mode rejection compared to other opto-drivers. 

While the input circuit mimics the characteristics of an LED, less drive current is required, resulting in higher efficiency. Propagation delay time is independent of input drive current, resulting in consistently short propagation times, tighter unit-to-unit variation, and greater input circuit design flexibility. As a result, the Si826x series offers longer service life and dramatically higher reliability compared to optocoupled gate drivers. Package options include the SO8, DIP8, LGA8 and SDIP6. 

Whitepaper: Digital Isolated Gate Drivers Simplify Design

Learn how pin-compatible digital isolated gate drivers make life easier for power designers.

Features

  • Pin-compatible, drop-in upgrades for popular high speed opto-coupled gate drivers
  • Low power diode emulator simplifies design-in process
  • 0.6 and 4.0 Amp peak output drive current
  • Rail-to-rail output voltage
  • Performance and reliability advantages vs. opto-drivers
    • Resistant to temperature and age
    • 10x lower FIT rate for longer service life
    • 14x tighter part-to-part matching
    • Higher common-mode transient immunity: >50 kV/μs typical
  • Robust protection features
    • Multiple UVLO ordering options (5, 8, and 12 V) with hysteresis
  • 60 ns propagation delay, independent of input drive current
  • Wide VDD range: 5 to 30 V
  • 3.75 and 5 kV reinforced isolation
    • UL, CSA, VDE
  • AEC-Q100 qualified
  • –40 to +125 °C extended operating temperature
  • RoHS-compliant packages

Get Started with Si826x Isolated Gate Drivers

Si826x Isolated Gate Driver Evaluation Kits

Begin development today with the Si826x evaluation kits. These are available in DIP8, SDIP6, SOIC8 and LGA8 package types.

View Kits


Si826x Product Matrix

Status
Devices
Part Number Data Sheet Evaluation Kit Isolation Rating (kVrms) Peak Output Current (A) UVLO Voltage (V) Input Type Output Configuration Package Type 10 kV Surge AEC-Q100 Overlap Protection and Dead Time Control Temperature Range (°C) Driver Supply Min (V) Driver Supply Max (V) Max Propagation Delay (ns)
Si826xDIP8-KIT 3.75 0.6 5 LED emulator Single Driver GW DIP8 Yes Yes No -40 125 5 30 60
Si826xSOIC8-KIT 3.75 0.6 5 LED emulator Single Driver NB SOIC8 Yes Yes No -40 125 5 30 60
Si826xSDIP6-KIT 5 0.6 5 LED emulator Single Driver WB SO6 Yes Yes No -40 125 5 30 60
Si826xDIP8-KIT 3.75 0.6 8 LED emulator Single Driver GW DIP8 Yes Yes No -40 125 5 30 60
Si826xSOIC8-KIT 3.75 0.6 8 LED emulator Single Driver NB SOIC8 Yes Yes No -40 125 5 30 60
Si826xSDIP6-KIT 5 0.6 8 LED emulator Single Driver WB SO6 Yes Yes No -40 125 5 30 60
Si826xSAMP-KIT 3.75 0.6 12 LED emulator Single Driver GW DIP8 Yes Yes No -40 125 5 30 60
Si826xSAMP-KIT 3.75 0.6 12 LED emulator Single Driver NB SOIC8 Yes Yes No -40 125 5 30 60
Si826xSAMP-KIT 5 0.6 12 LED emulator Single Driver WB SO6 Yes Yes No -40 125 5 30 60
Si826xDIP8-KIT 3.75 4 5 LED emulator Single Driver GW DIP8 Yes Yes No -40 125 5 30 60
Si826xSOIC8-KIT 3.75 4 5 LED emulator Single Driver NB SOIC8 Yes Yes No -40 125 5 30 60
Si826xSDIP6-KIT 5 4 5 LED emulator Single Driver WB SO6 Yes Yes No -40 125 5 30 60
Si826xDIP8-KIT 3.75 4 8 LED emulator Single Driver GW DIP8 Yes Yes No -40 125 5 30 60
Si826xSOIC8-KIT 3.75 4 8 LED emulator Single Driver NB SOIC8 Yes Yes No -40 125 5 30 60
Si826xSDIP6-KIT 5 4 8 LED emulator Single Driver WB SO6 Yes Yes No -40 125 5 30 60
Si826xSAMP-KIT 3.75 4 12 LED emulator Single Driver GW DIP8 Yes Yes No -40 125 5 30 60
Si826xSAMP-KIT 3.75 4 12 LED emulator Single Driver NB SOIC8 Yes Yes No -40 125 5 30 60
Si826xSAMP-KIT 5 4 12 LED emulator Single Driver WB SO6 Yes Yes No -40 125 5 30 60
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