Creating the future of Automobiles

Automotive LED Drivers

Selection Guide

Automotive LED Drivers

Selection Guide

Ver.2.3

01

Automotive LED Drivers Selection Guide

*Before using the product(s) please verify the numerical values, data, and functions listed in the latest datasheet.

INDEX

A

pplication Confi

g

uration Examples

LED Driver Lineup

f

or Automotive Lamps

Switching Buck LED Drivers

B

uck LED Drivers featurin

g

Fixed Switchin

g

Frequency Control

B

uck LED Drivers featurin

g

OFF Time Control

Linear LED Drivers

4c

h

Linear LED Driver

s

Linear LED Controllers

B

D18345EFV-M with Enhanced DC Dimmin

g

Functio

n

U

ltra-Compact Linear LED Driver

Linear LED Driver

s

wit

h

Built-in FE

T

Linear LED Driver Lineu

p

PBU

S

Functio

n

Noise Characteristics and Immunit

y

H

eat Re

s

i

s

tance and Thermal Characteri

s

tic

s

S

upport S

y

stem for EMC/Thermal treatmen

t

P.03

P.04

Switching Boost LED Drivers

B

oo

s

t LED Driver

s

P.05

Multi-Channel Switching LED Driver

1

c

h

Boo

s

t + 2c

h

Buck LED Driver P.07

Matrix Switch

M

atrix LED C

o

ntr

o

ller with Built-in Patter

n

P.08

P.09

P. 11

P.12

P.13

P.15

IPD (Intelligent Power Device)

P.16

Discretes

IC-Related Technical Materials and Support System

M

OSFETs/Bipolar Transistors for Automotive LED Drivers

A

nti-Sulfuration Silverless Chip LE

D

S

chottk

y

Barrier Diodes for Automotive LED Drivers

W

i

de

T

e

rmina

l

/

H

i

g

h Power Chip Resistors

H

i

g

h Power Anti-Sur

g

e Chip Resistors

A

nti-Sulfuration Chip Resistors

C

hip Resistor Sulfuratio

n

P.17

P.18

P.19

P.20

Guide to ROHM

’

s Websit

e

R

OHM Group Locations

P.28

P.29

P.21

P.22

P.23

g

A

pproach to Hi

g

h Quality and Stable Supply

A

pproach for Automotive-Grade Products

ROHM Manufacturing

P.25

P.27

P.02

Intelligent Power Device

02

Automotive LED Drivers Selection Guide

Application Configuration Examples

LED Driver Lineup for Automotive Lamps

Pickup

Application

High/Low Beam, DRL, Fog, Position

Turn lamp

Rear lamp

Multiple LEDs

Conventional Turn

Tail/Stop

Simple Drive

Small Size

Controller type

Internal MOSFET

Without MCU

With MCU

Controller

Small Size

Controller

Simple Drive

Corresponds to

ADB

Internal MOSFET/

4ch

Internal MOSFET/

4ch

Internal MOSFET/

1ch

Few LEDs

High Current Load

Few LEDs

Low Current Load

Type

LED Driver Discrete

Buck converter

Appearance

Buck-Boost converter

Matrix SW/ADB

Linear Driver

B

D1834x-M series

(

P. 11 - 1 2

)

Un

d

er Plannin

g

Under Planning

Nch M

OS

FE

T

BD1834x-M series

(

P. 11 - 1 2

)

☆

B

D18336NUF-M

(

P.13

)

BD837x-M series

(

P.14

)

BD18340FV-M

(

P. 11

)

☆

B

D18336NUF-M

(

P.13

)

☆

BD18362EFV-M

(

P. 8

)

BD1834x-M series

(

P. 11 - 1 2

)

BD837x-M series

(

P.14

)

BD18351EFV-M

(

P. 5

)

☆

B

D18353EFV-M/MUF-M

(

P. 6

)

BD18351EFV-M

(

P. 5

)

☆

B

D18353EFV-M/MUF-M

(

P. 6

)

BD18337EFV-M

(

P.9-10

)

BD18347EFV-M

(

P.9-10

)

☆

B

D18394EFV-M/MUF-M

(

P. 3

)

☆

BD18391/5EFV-M

(

P. 4

)

BD18337EFV-M

(

P.9-10

)

BD18347EFV-M

(

P.9-10

)

BD18337EFV-M

(

P.9-10

)

BD18347EFV-M

(

P.9-10

)

☆

B

D18394EFV-M/MUF-M

(

P. 3

)

☆

BD18391/5EFV-M

(

P. 4

)

☆

B

D18394EFV-M/MUF-M

(

P. 3

)

☆

BD18391/5EFV-M

(

P. 4

)

MOSFET: RSx/RD3 series(P.17)

Diode: RBR/RBxx8 series(P.18)

MOSFET: RSx/RD3 series(P.17)

Diode: RBR/RBxx8 series(P.18)

MOSFET: RSx/RSD series(P.17)

Diode: RBR/RBxx8 series(P.18)

Shunt Resistor: LTR series(P.19)

Chip Resistor: SFR series(P.20)

PNP Transistor: 2SAR573(P.17)

MOSFET: RJU003N03(P.17)

LED: PSL030x series(P.17)

Chip Resistor: SFR series(P.20)

■ Buck LED Driver

■ Boost, Buck-Boost LED Driver

■ Matrix SW LED Controller

■ Linear type LED Driver

☆: Under Development

<LEDs>

*Before using the Products, please verify the numerical values,

data, and functions listed in the latest datasheet.

FRONTRear/Side

n

Tur

n

Few

LE

Ds

L

o

w Current L

o

a

d

p

H

d

Few

ew

LE

Ds

Hig

g

h

h C

urr

ent

t

Lo

L

a

d

C

Rea

r/S

ide

C

p

mp

Co

o

on

T

urn

T

n

ven

ve

ti

o

nal

T

m

la

m

r

p

R

ea

r

Tail/

S

to

p

LED channel

& number

Long chain

6 to 15 LEDs

Multi channels

3 to 6 LEDs

Multi channels

1 to 3 LEDs

One channel

1 to 3 LEDs

20mA 130mA 500mA 800mA 1A 2 to 6A

Buck LED Driver Boost, Buck-Boost LED Driver Linear LED Driver

BD18351EFV-M

E

k

-Boost

)

(

Boost, Buc

k

☆BD18353EFV-M/MUF-M

☆ 8353 U

E

oost, Buck-Boost)

,)

(Bo

(

o

☆BD18312MUF-M

M

+

2ch Buck

)

(

1ch Boost

+

BD1834x series

s

(

Controller

)

☆BD18336NUF-M

N

/

1ch

)

(

Small PKG

/

E

FV-M

☆BD18347EFV-M/BD18337E

E

(

FET/4ch

)

BD837x series

r

（Integrated FET/up to 500mA）

E

☆BD18391EFV-M

9

Buck

1ch B

B

Integrated FET(1A)

☆

BD1839

5

EFV-M

EFV M

1

ch

Bu

c

k

Inte

g

rate

d

FET

(

2A

)

☆

BD18394

EFV-M/MUF-M

EFV M/MUF M

1

ch

Bu

c

k

C

o

ntr

o

ller

Front light

RCL/DRL/Turn/CL/Fog/High low beam

RCL/DRL/Turn/CL/Fog

Front light

(LED/Laser)

☆: Under Development