BD18347EFV-ME2 ROHM

Datasheet For Automotive, 40 V 150 mA 4ch Constant Current LED Driver BD18337EFV-M BD18347EFV-M General Description Key Specifications BD18337EFV-M / BD18347EFV-M are 40 Input Voltage Range: 5.5 V to 20.0 V V-withstanding constant current LED driver for Maximum Output Current: 150 mA/ch automotive applications. It is a 4 channel LED driver with Output Current Accuracy: 5 % the built-in energy sharing control which can realize to Relative Channel Accuracy: 5 % make the board size small. High reliability can be Operating Temperature Range: -40 C to +125 C realized with LED Open Detection, the OUTx (all later x=1 to 4) pin Short Circuit Protection, Over Voltage Mute Package W (Typ) x D (Typ) x H (Max) and Thermal Shutdown Function. In case the output HTSSOP-B16 5.00 mm x 6.40 mm x 1.00 mm OUTx pin has 3 LEDs in series, BD18337EFV-M has to be used, in case of 2 LEDs in series, BD18347EFV-M has to be used. Features (Note 1) AEC-Q100 Qualified Energy Sharing Control PWM Dimming Function License Lamp Mode LED Open Detection OUTx pin Short Circuit Protection (SCP) Over Voltage Mute Function (OVM) Disable LED Open Detection Function at Reduced-Voltage LED Failure Input / Output Functions (PBUS) (Note 1) Grade1 Applications Automotive LED Exterior Lamp (Rear Lamp, License Lamp, DRL / Position Lamp, Fog Lamp etc.) Automotive LED Interior Lamp (Air Conditioner Lamp, Interior Lamp, Cluster Light etc.) Typical Application Circuit REXT VINRES PWM in D1 OUT1 ZD1 CVIN1 CVIN2 VIN OUT2 D2 OUT3 CRT OUT4 DC in D3 CCRT RCRT COUT4 COUT3 COUT2 COUT1 BD18337EFV-M DISC BD18347EFV-M +B MSET1 MSET2 SET1 R SET1 SET2 R SET2 PBUS SET3 RSET3 SET4 RSET4 GND Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0T3T0B300300-1-2 2019 ROHM Co., Ltd. All rights reserved. 1/35 TSZ22111 14 001 25.Jul.2019 Rev.002 BD18337EFV-M BD18347EFV-M Pin Configuration VINRES OUT1 1 16 VIN OUT2 2 15 PBUS 3 14 OUT3 CRT OUT4 4 13 EXP-PAD DISC GND 5 12 MSET1 MSET2 6 11 SET1 7 10 SET3 SET2 SET4 8 9 (TOP VIEW) Pin Description Pin No. Pin Name Function (Note 1) 1 VINRES Energy sharing external resistor connection VIN Supply voltage input 2 3 PBUS Output for fault flag / Input to disable output current (Note 2) 4 CRT CR TIMER setting1 (Note 3) 5 DISC CR TIMER setting2 Mode setting pin 1 6 MSET1 7 SET1 Output current setting pin 1 8 SET2 Output current setting pin 2 Output current setting pin 4 9 SET4 10 SET3 Output current setting pin 3 Mode setting pin 2 11 MSET2 12 GND GND 13 Current output pin 4 OUT4 14 OUT3 Current output pin 3 15 Current output pin 2 OUT2 16 OUT1 Current output pin 1 - EXP-PAD The EXP-PAD connect to GND. (Note 1) Short the VINRES pin to the VIN pin when not in use. (Note 2) Short the CRT pin to the VIN pin when not in use. (Note 3) Open the DISC pin or connect it to GND when not in use. www.rohm.com TSZ02201-0T3T0B300300-1-2 2019 ROHM Co., Ltd. All rights reserved. 2/35 TSZ22111 15 001 25.Jul.2019 Rev.002