BD8374HFP-M_16 Datasheet, PDF (1/33 Pages) Rohm – 1ch Source Driver for Automotive

Datasheet
Constant Current LED Drivers
50V 500mA
1ch Source Driver for Automotive
BD8374HFP-M BD8374EFJ-M
General Description
BD8374HFP-M and BD8374EFJ-M are 50V-withstanding
LED source drivers. Most suitably for Automotive
LED driving, it can control light through PWM of constant
current output.
Having LED open/short detective circuit and overvoltage
mute functions integrated, it can deliver high reliability.
Also by utilizing our patented PBUS function, it is possible
to turn OFF all LEDs in case where a row of LEDs are
short/open-circuited if multiple rows of LEDs are driven
through multiple number of the ICs.
Key Specifications
 Input Voltage Range: 4.5V to 42V
 Max Output Current: 500mA (Max)
 Output Current Accuracy: ±5% (Max)
 Operating Temperature Range: -40°C to +125°C
Packages
HRP7
HTSOP-J8
W(Typ) x D(Typ) x H(Max)
9.395mm x 10.540mm x 2.005mm
4.90mm x 6.00mm x 1.00mm
Features
 AEC-Q100 Qualified
 Variable form Constant-Current Source Driver
 PWM Dimming Function
 CR Timer for PWM Dimming Function Integrated
 LED Open/Short detective Circuit Function Integrated
 Overvoltage Mute and Temperature Protection
Functions Integrated
 Abnormal Output Detection and Output Functions
(PBUS)
Application
 On-board Exterior Lamp
(Rear Lamp, Turn Lamp, DRL/Position Lamp,
Fog Lamp, etc.)
 On-board Interior Lamp
(Air Conditioner Lamp, Interior Lamp,
Cluster Light, etc.)
HRP7
HTSOP-J8
Basic Application Circuit
VIN_F
VIN
IOUT
CRT BD8374HFP-M
BD8374EFJ-M
DISC
FIN
PBUS
GND
Figure 1. Typical Application Circuit
○Product configuration: Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○ The product is not designed for radiation resistance.
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TSZ02201-0G1G0C700310-1-2
2016.09.06 Rev.003