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REFLED001 - Reference Design

4ch White LED Driver Built-in Current Driver Boost DC-DC Converter for Automotive BD81A74EFV-M

The REFLED001 is a reference design of BD81A74EFV-M LEDdriver IC dedicated for automotive backlight application. It is including set of evaluation reports, design resources so that users can refer to board design as well as various test report provided in the design. BD81A74EFV-M is a white LED driver for LCD backlight. It has 4ch current drivers for LED drive, making it ideal for high brightness LED drive. The dimming is controlled by the PWM signal and can be set up to 10,000: 1@100 Hz.

  • Automotive backlight reference design
  • Supporting BD81A74EFV-M in boost operation
  • Verified to satisfy EMC CISPR 25 class 5 standard at practical operating condition.
  • Thermal characteristics tested
  • PCB design files are available


Related Documents


Design Resources



Board Number Input Voltage Output Channel Output Voltage Topology EMC Performance Size
BD81A74EFV-TSB-001 7V to 18V 4ch 20V to 34V Boost Satisfy CISPR25 Class5 requirement 60mm x 90mm

Distribution Inventory

Board Number Distributor Quantity Available
BD81A74EFV-TSB-001 - ContactUs

Key Components

Board Number Part Number Product Category Datasheet Status SPICE LTspice Thermal Model Symbol & Footprint 3D STEP Samacsys ECAD Library Calc Tool ROHM Solution Simulator
BD81A74EFV-TSB-001 BD81A74EFV-M LED Drivers - Recommended - - -
BD81A74EFV-TSB-001 RB088LAM-60TF Schottky Barrier Diodes - Recommended - - - - -