REFLED009 - Reference Design

This reference design of BD18353EFV-M LEDdriver IC dedicated for automotive lamp application (Head lamp and Rear lamp etc) . 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. BD18353EFV-M/MUF-M is a 1ch LED Controller. High side current detection amplifier is built-in. PWM dimming duty can be freely set with built-in PWM generation circuit. PWM dimming realizes by driving an external P-ch MOSFET. Outputs abnormal LED status to the FAULT_B pin. Two systems of analog dimming are built-in. High precision 3.0V output power supply for analog dimming and PWM dimming setting is built-in. Three topology (Boost to Vin, SEPIC, and Boost) reference designs are available to meet the needs for safety design and smaller board size. In addition, we offer LED specifications in three patterns (4, 8, and 12 white lights) to maximize performance within the allowable heat generation range of peripheral components such as MOSFETs and DIODEs.

• Automotive backlight reference design
• Supporting BD18353EFV-M in boost and buck-boost operation
• Reference design for three topologies and three LED specifications
• Verified to EMC CISPR 25 standard under practical operating conditions
• Thermal characteristics tested
• Different package designs for NchMOSFET and PchMOSFET are available
• PCB design files are available