Datasheet
Constant Current LED Drivers
50V 500mA
1ch Source Driver for Automotive
BD83740HFP-M
General Description
BD83740HFP-M is 50V-withstanding LED source drivers.
Most suitably for Automotive
LED driving, it can control light through PWM of constant
current output.
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
Having LED open detective function and overvoltage mute
function 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
opened if multiple rows of LEDs are driven through
multiple number of the ICs.
Packages
HRP7
W(Typ) x D(Typ) x H(Max)
9.395mm x 10.540mm x 2.005mm
Features
AEC-Q100 Qualified(Note1)
Variable form Constant-Current Source Driver
PWM Dimming Function
CR Timer for PWM Dimming Function Integrated
LED Open detective Function Integrated
Overvoltage Mute and Temperature Protection
Functions Integrated
HRP7
Abnormal Output Detection and Output Functions
(PBUS)
(Note1: Grade 1)
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.)
Basic Application Circuit
D1
RVIN_F
VIN_F
IOUT
PWM_in
ZD1
CVIN
VIN
CIOUT
D2
D3
CRT
DISC
PBUS
BD83740HFP-M
DC_in
+B
CCRT
RCRT
FIN
RPBUS
GND
Figure 1. Typical Application Circuit
○Product configuration: Silicon monolithic integrated circuit ○ The product is not designed for radiation resistance.
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TSZ02201-0T1T0C700170-1-2
06.Sep.2016 Rev.002
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