Si826x Automotive Isolated Gate Drivers

Si826x automotice isolated gate drivers provide pin-compatible, drop-in upgrades for popular gate drive optocouplers and are ideal for driving the power MOSFETs and IGBTs used in electric vehicle systems. 

Si826x isolated gate drivers use our proprietary silicon isolation technology, supporting up to 5.0 kV RMS withstand voltage per UL1577 and enabling 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, Si826x devices offer longer service life and dramatically higher reliability compared to optocoupled gate drivers. Package options include the SO8, DIP8, LGA8, and SDIP6.

Peak output current
4 A
Low turn-on current
3.6 mA
Automotive grade
AEC-Q100 qualification

Common Specs

  • True automotive grade products with automotive qualification, manufacturing, production test, and support
  • AEC-Q100 qualification
  • PPAP documentation and material listing system support (IMDS, CAMDS)
  • –40 to +125 °C temperature range
  • 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 A 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
  • RoHS-compliant packages
Find the Right Automotive Si826x Device Select Columns
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Part Number 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 (V) Max Propagation Delay (ns)

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