General Description

BD18337EFV-M / BD18347EFV-M are 40

V-withstanding constant current LED driver for

automotive applications. It is a 4 channel LED driver with

the built-in energy sharing control which can realize to

make the board size small. High reliability can be

realized with LED Open Detection, the OUTx (all later

x=1 to 4) pin Short Circuit Protection, Over Voltage Mute

and Thermal Shutdown Function. In case the output

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

◼ AEC-Q100 Qualified(Note 1)

◼ 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.)