BridgeSwitchâ„¢

HV, Self-Powered, Half-bridge Motor Drive with Device Protection and System Monitoring

1810_PI_BridgeSwitch_ApplicationPR_Image_2100px1500px_RGB_V01.jpg
1810_PI_BridgeSwitch_ApplicationPR_Image_2100px1500px_RGB_V01.jpg

  • Heat-sink less design up to 400 W
  • Self supplied, no need of external PSU
  • 600 V FREDFETs with integrated lossless current sensing
  • Simplifies system level safety certification, Class A rated control software possible

The BridgeSwitch™ family of integrated half-bridges feature high- and low-side FREDFETs (Fast Recovery Diode Field Effect Transistors) with integrated lossless current sensing, resulting in the inverter conversion efficiency of up to 99.2% in brushless DC (BLDC) motor drive applications up to 400 W. Superior efficiency along with the distributed thermal footprint eliminates the need for a heatsink, reducing both system cost and weight. Integrated lossless current sensing, bus voltage sensing, and system-level thermal sensing make this device family ideal for BLDC motors.

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  • 600 V Integrated FREDFETs (Fast Recovery Diode Field Effect Transistors)
    • Allows up to 99.2% inverter efficiency and low EMI
  • No heat-sink required for up to 400 W
  • Fully self-supplied simplifies system auxiliary power supply
  • Low and high-side cycle-by-cycle current limit simplifies system-level certification 
  • Integrated HV gate drivers, tuned to drive FREDFETs
  • Full device and system-level monitoring
  • Supports trapezoidal, sinusoidal, or field-oriented control up to 20 kHz PWM
  • Simple digital interface to the micro-controller (3.3 V and 5 V CMOS-compatible)
  • Compact footprint surface mount package (InSOP-24C)
    • Exposed pads enable heat sinking through PCB
  • HV BLDC Motors, fans, pumps
  • Small and Major Appliances, compressors, blowers
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