BD83732HFP-M Datasheet, PDF (1/32 Pages) Rohm – AEC-Q100 Qualified

Datasheet
Constant Current LED Drivers
50V 500mA
1ch Source Driver for Automotive
BD83732HFP-M /BD83733HFP-M
General Description
BD83732HFP-M and BD83733HFP-M are 50V tolerant
LED current drivers. Suitable for Automotive LED
applications, it can control light through constant current
output with control using PWM.
Having LED open/short detective circuit and LED current
de-rating functions integrated, it can deliver high reliability.
By utilizing Rohm’s patented PBUS function, it is possible
to turn OFF all LEDs when a row of LEDs are
short/open-circuited if multiple number of the ICs are used
In case the LED connected to the output IOUT terminal
has 2 LEDs in serise, BD83732HFP-M has to be used, in
case of 3 LEDs in series - BD83733HFP-M ( Refer to
Page.18 LED Open Detection / Disable LED Open
Detection ).
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
W(Typ) x D(Typ) x H(Max)
9.395mm x 10.540mm x 2.005mm
Features
„ AEC-Q100 Qualified
„ Variable form Constant-Current Source Driver
„ PWM Dimming Function
„ LED constant current set by external resistor
„ LED Current De-rating Function
„ LED Open/Short detection
„ Disable LED Open Detection at low power supply
„ Temperature Protective
„ Abnormal Output Detection and Output Functions
(PBUS)
HRP7
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
Figure 1. Typical Application Circuit
○Product configuration: Silicon monolithic integrated circuit ○ The product is not designed for radiation resistance.
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