Si822x/3x Automotive Isolated Gate Drivers

Si8220/1 automotive isolated gate drivers are "opto-input," package and pin compatible upgrades to HCPL-3120 and other optically-coupled gate drivers. With significant improvements in performance and reliability, these devices can connect to optocoupler external input circuits (e.g., voltage source and series limiting resistor).

Si822x/3x automotive isolated drivers combine two independent, isolated drivers into a single package to create high-side/low-side drivers (Si8230/1/3/4) or dual drivers (Si8232/5). These devices are available with conventional high-side and low-side digital inputs or PWM input control interfaces. The new Si8237 and Si8238 options are capable of operating at 3.0V VDD on input side.

All Si822x/3x automotive gate drivers offer ultra-fast propagation delays for better timing margins, rock-solid operation over temperature and time, and unparalleled size and cost benefits. Isolation ratings of 1, 2.5, 3.75, and 5.0 kV are available. Driver-to-driver withstand voltage is ±1500 VDC and drivers can be grounded to the same or separate grounds or connected to a floating voltage.

Peak output current
4 A
Safety feature
Overlap protection
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
  • Integrated isolator plus dual gate drivers in one package
  • Up to 5 kVrms input-to-output differential voltage isolation
  • Withstands 1500 VDC peak driver-to-driver isolation
  • HS/LS and dual versions
  • Up to 8 MHz switching frequency
  • 0.5 A peak output (Si8230/1/2)
  • 4.0 A peak output (Si8233/4/5)
  • Independent HS and LS 2 wire inputs or single wire PWM input versions
  • Opto input mode (Si822x) with single channel 0.5 A or 2.5 A drivers
  • Common-mode transient immunity >25 kV/μs
  • Overlap protection and programmable dead time (Si8230/1/3/4)
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Part Number Isolation Rating (kVrms) Peak Output Current (A) UVLO Voltage (V) Input Type Output Configuration Package Type

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