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REFLED010 - Reference Design

1ch High Current LED Controller Boost LED Driver for Automotive

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

Specifications

 
Board Number Power supply voltage LEDs in series Output voltage Output current Switching frequency Over voltage limit Over current limit
REFLED010-EVK-001 8V to 18V *1 12pcs(Typ.) 36.0V(Typ.) *2 505mA(Typ.) 413kHz(Typ.) *3 57.0V(Typ.) 6.9A(Typ.)
REFLED010-EVK-002 8V to 18V *1 12pcs(Typ.) 36.0V(Typ.) *2 505mA(Typ.) 413kHz(Typ.) *3 57.0V(Typ.) 6.9A(Typ.)
REFLED010-EVK-003 8V to 18V *1 12pcs(Typ.) 36.0V(Typ.) *2 505mA(Typ.) 413kHz(Typ.) *3 57.0V(Typ.) 6.9A(Typ.)
REFLED010-EVK-004 8V to 18V *1 12pcs(Typ.) 36.0V(Typ.) *2 505mA(Typ.) 413kHz(Typ.) *3 57.0V(Typ.) 6.9A(Typ.)
Remarks:
*1 This indicates the voltage near the VCC pin. Be careful of voltage drop by the impedance of power line.
*2 Output voltage is determined by the Vf value of the connected LED and the numbers of series. Since this evaluation board has a Boost-configuration, output voltage should be higher than input voltage. Also, output voltage should be lower than OVP voltage.
*3 The default frequency is set to 413kHz so that it is higher than the EMC standard (LW: 150kHz to 300kHz) even if variations and SSFM functions are considered.

Distribution Inventory

 
Board Number Distributor Quantity Available
REFLED010-EVK-001 - ContactUs
REFLED010-EVK-002 - ContactUs
REFLED010-EVK-003 - ContactUs
REFLED010-EVK-004 - 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
REFLED010-EVK-001 BD18353EFV-M LED Drivers - Recommended - - - -
REFLED010-EVK-001 LTR18EZPFL Current Detection Resistors - Recommended -
REFLED010-EVK-001 LTR18EZPFS Current Detection Resistors - Recommended -
REFLED010-EVK-001 LTR18EZPFU Current Detection Resistors - Recommended -
REFLED010-EVK-001 LTR18EZPJL Current Detection Resistors - Recommended -
REFLED010-EVK-001 LTR18EZPJS Current Detection Resistors - Recommended -
REFLED010-EVK-001 LTR18EZPJU Current Detection Resistors - Recommended -
REFLED010-EVK-001 RB048RSM10S Schottky Barrier Diodes - Recommended - - - -
REFLED010-EVK-002 BD18353EFV-M LED Drivers - Recommended - - - -
REFLED010-EVK-002 LTR18EZPFL Current Detection Resistors - Recommended -
REFLED010-EVK-002 LTR18EZPFS Current Detection Resistors - Recommended -
REFLED010-EVK-002 LTR18EZPFU Current Detection Resistors - Recommended -
REFLED010-EVK-002 LTR18EZPJL Current Detection Resistors - Recommended -
REFLED010-EVK-002 LTR18EZPJS Current Detection Resistors - Recommended -
REFLED010-EVK-002 LTR18EZPJU Current Detection Resistors - Recommended -
REFLED010-EVK-002 RB048RSM10S Schottky Barrier Diodes - Recommended - - - -
REFLED010-EVK-003 BD18353EFV-M LED Drivers - Recommended - - - -
REFLED010-EVK-003 LTR18EZPFL Current Detection Resistors - Recommended -
REFLED010-EVK-003 LTR18EZPFS Current Detection Resistors - Recommended -
REFLED010-EVK-003 LTR18EZPFU Current Detection Resistors - Recommended -
REFLED010-EVK-003 LTR18EZPJL Current Detection Resistors - Recommended -
REFLED010-EVK-003 LTR18EZPJS Current Detection Resistors - Recommended -
REFLED010-EVK-003 LTR18EZPJU Current Detection Resistors - Recommended -
REFLED010-EVK-003 RB048RSM10S Schottky Barrier Diodes - Recommended - - - -
REFLED010-EVK-004 BD18353EFV-M LED Drivers - Recommended - - - -
REFLED010-EVK-004 LTR18EZPFL Current Detection Resistors - Recommended -
REFLED010-EVK-004 LTR18EZPFS Current Detection Resistors - Recommended -
REFLED010-EVK-004 LTR18EZPFU Current Detection Resistors - Recommended -
REFLED010-EVK-004 LTR18EZPJL Current Detection Resistors - Recommended -
REFLED010-EVK-004 LTR18EZPJS Current Detection Resistors - Recommended -
REFLED010-EVK-004 LTR18EZPJU Current Detection Resistors - Recommended -
REFLED010-EVK-004 RB048RSM10S Schottky Barrier Diodes - Recommended - - - -