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STMicroelectronics LBP01 LED Bypass Protection Devices

STMicroelectronics LBP01 LED Bypass Protection Devices are bypass switches to be connected in parallel with 1 or 2 LEDs. In case of LED failure, this allows the current to flow through the other LED. These devices also provide an overvoltage protection against surges defined in IEC 61000-4-2 and IEC 61000-4-5. STMicroelectronics LBP01 protects LEDs against surge and they are compatible with LEDs up to 1A.

The LBP01 LED Bypass Protection Devices are packaged either in and SMB (DO-214AA) or SOT23-5L packages. Typical applications include automotive headlights, traffic lights, aircraft runway lights, emergency lighting systems, display panel backlighting, and street lighting.

Features

  • Bidirectional device: LBP01-0810B
  • Unidirectional device: LBP01-0803SC5
  • RoHS compliant
  • Keep LED strings on in case of LED open mode failure
  • Reduced maintenance cost
  • Increase lifetime of the lighting system
  • Complies with the following standards:
    • IEC61000-4-2 level 4
      • ±15kV (air discharge)
      • ±8kV (contact discharge)
    • IEC 61000-4-5
      • ±1kV/24

Applications

  • Automotive headlights
  • Traffic lights
  • Aircraft runway lights
  • Emergency lighting systems
  • Display panel backlighting
  • Street lighting

Functional Diagrams

Block Diagram - STMicroelectronics LBP01 LED Bypass Protection Devices
Block Diagram - STMicroelectronics LBP01 LED Bypass Protection Devices
Published: 2012-07-24 | Updated: 2022-03-11