BD8372HFP-M Datasheet, PDF (1/17 Pages) Rohm – LED Drivers for Automotive Light

Power Management ICs for Automotive Body Control
LED Drivers
for Automotive Light
BD8372HFP-M,BD8372EFJ-M
No.11039EAT13
●Description
BD8372HFP-M and BD8372EFJ-M are a LED source driver with the capability of withstanding high input voltage (50V MAX).
The fixed current output can change in the H/L current, and it is the best for automotive LED drive. It is built into LED
open/short protection, external resistance open/short protection and overvoltage overheating protection and high reliability
can be achieved. When driving two or more LED by using two or more IC, it can be done to control LED all together turning
off even if LED causes short/open in a certain row.
●Features
1) Input voltage range 5.5～40V
2) Changeable type fixed current source driver(200 mA max), Current accuracy ±3%(VIN=13 V, Ta=25℃)
3) H/L Current setting switch control
4) Built-in LED open/short protection circuit
5) Built-in ISET open/short protection circuit
6) Built-in overvoltage overheating protection and temperature protection circuit
7) Error state output detection function (PBUS)
8) HRP7/HTSOP-J8 package
●Applications
For automotive (Lear lamp, Interior light, etc.)
●Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Ratings
Unit
Power supply voltage
V_VIN
50
V
STOP, IOUT, PBUS terminal
V_STOP, V_IOUT, V_PBUS
50
V
ISETH, ISETL terminal
Power Consumption
V_ISETH, V_ISETL
Pd
7
V
2.3(HRP7) ^*1
1.1(HTSOP-J8)^*2
W
Operating temperature range
Topr
-40～125
℃
Storage temperature range
Tstg
-55～150
℃
Joint part temperature
Tjmax
150
℃
IOUT output maximum current
I_IOUT
200
mA
*1 HRP7
IC mounted on glass epoxy 2 layer board, area 15mmx15mm of the back copper foil, measuring 70mm×70mm×1.6mm
less than copper foil share 3%, power dissipated at a rate of 18.4mw/℃ at temperatures above 25℃.
*2 HTSOP-J8
IC mounted on glass epoxy 2 layer board, area 15mmx15mm of the back copper foil, measuring 70mm×70mm×1.6mm
less than copper foil share 3%, power dissipated at a rate of 88mw/℃ at temperatures above 25℃.
●Operating conditions (Ta=-40～+125℃)
〔Please set after considering power consumption for the power-supply voltage.〕
Parameter
Symbol
Ratings
Unit
Min. Typ. Max.
Power supply voltage
VIN
5.5
13
40
V
Current setting resistance
R_ISETH
R_ISETL
10k
-
100k Ω
10k
-
100k Ω
Conditions
-
STOP=H
STOP=L
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2011.04 - Rev.A