Skyworks Solutions Inc. Si82Fx Isolated Gate Drivers

Skyworks Solutions Inc. Si82Fx Isolated Gate Drivers integrate two isolated gate drivers into a single package for high-power applications. The Si82Fx includes single or dual control inputs with independent or high-side/low-side outputs. The gate drivers can perform with a 3V to 20V input supply and a maximum gate driver supply voltage of 30V. The inputs are CMOS, which delivers a robust noise margin.

The Skyworks Si82Fx is excellent for driving power silicon MOSFETs, IGBTs, SiC FETs, and GaN FETs in various switched power and motor control applications. The devices employ Skyworks' proprietary silicon isolation technology, supporting up to 6kVRMS for 1-minute isolation voltage. This technology allows high CMTI (200kV/μs), lower propagation delays and skew, slight variation with temperature and age, and tight part-to-part matching. The Si82Fx provides longer service life and higher reliability than optocoupled gate drivers.

The output stage offers Selectable Variable Current Drive (SelVCD™) technology that adjusts output current between eight selectable levels, eliminating the requirement for gate resistors and clamping any Miller effect currents. SelVCD operates as a current source that maintains current output within a tight tolerance of the target across all operating conditions. The drivers additionally feature Undervoltage Lockout (UVLO), dead time programmability, and defined output states in all operating conditions.

The Si82Fx is available in an automotive grade. The gate drivers are built using automotive-specific flows at all manufacturing steps to confirm the robustness and low defectivity needed for automotive applications.

Features

  • Wide input range of 3V to 20V
  • Wide gate supply voltage of 5V to 30V
  • CMOS input with an optional deglitch filter
  • Channel-to-channel skew <5ns
  • Dead time control and overlap protection
  • Universal and high-side/low-side pinouts
  • Voltage Mode Drive
  • Unipolar or bipolar output voltages
  • CMTI > 200kV/µs
  • 1500VRMS working voltage
  • Optimized UVLOs of 4V, 8V, 12V, and 15V
  • 4kV HBM ESD rating
  • No unknown output states
  • Increased channel-to-channel creepage
  • 6kVRMS safety-rated isolation
  • 10kV bipolar surge
  • Wide temperature range of -40°C to 125°C
  • Narrow-body, 16-pin SOIC and wide-body, 14-pin SOIC packages
  • AEC-Q100 qualification
  • Automotive-grade OPNs available
  • Safety regulator approvals
  • UL 1577 recognized
    • Up to 6000VRMS for one minute
  • CSA certification conformity
    • 62368-1 (reinforced insulation)
    • 60601-1 (2 MOPP)
  • VDE certification conformity
    • 60747-17 (reinforced insulation)
  • CQC certification approval
    • GB4943.1

Applications

  • Isolated switched-mode supplies
  • Motor drives
  • Power inverters
  • Uninterruptable power supplies
  • Onboard chargers
  • DC-DC converters

Videos

Block Diagrams

Block Diagram - Skyworks Solutions Inc. Si82Fx Isolated Gate Drivers

Videos

Veröffentlichungsdatum: 2024-05-31 | Aktualisiert: 2025-04-11