BD18340FV-M Datasheet, PDF (1/39 Pages) Rohm – Constant Current Controller for Automotive LED Lamps

Datasheet
Constant Current LED Drivers for Automotive
Constant Current Controller
for Automotive LED Lamps
BD18340FV-M BD18341FV-M
General Description
BD18340FV-M/BD18341FV-M are 70V-withstanding
Constant Current Controller for Automotive LED Lamps.
It is able to drive at maximum 10 rows of PNP transistors.
It can also contribute to reduction in the consumption
power of the set as it has the integrated standby function.,
The IC also incorporates a highly reliable, in-built
de-rating function, LED Open Detection, Short Circuit
Protection and Over Voltage Mute function and LED
failure input/output function.
Features
AEC-Q100 Qualified^(Note1)
LED Constant-Current Controller
PWM Dimming Function
LED Current De-rating Function
LED Open Detection
Short Circuit Protection(SCP)
Over Voltage Mute Function(OVM)
Disable LED Open Detection Function at
Reduced-Voltage
Abnormal Output Detection and Output Functions
(Note1: Grade1)
Applications
 Automotive LED Exterior Lamp
(Rear Lamp, Turn Lamp, DRL/Position Lamp,
Fog Lamp etc.)
 Automotive LED Interior Lamp
(Air Conditioner Lamp, Interior Lamp,
Cluster Light etc.)
Key Specifications
Input Voltage Range：
4.5V to 19V
FB Terminal Voltage Accuracy：
650mV ±3%
@Ta = 25°C to 125°C
Stand-by Current：
0µA(Typ)
LED Current De-rating Accuracy：
BD18340FV-M : ± 5% @VDCDIM=0.5 to 0.75V
BD18341FV-M : ±12% @VDCDIM=0.5 to 0.75V
Operating Temparature Range： -40°C to +125°C
Package
SSOP-B16
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.40mm x 1.35mm
SSOP-B16
Typical Application Circuit
PWM_in
D1
ZD1
D2
CVIN1 CVIN2
DC_in
D3
CCRT
RCRT
RDCIN
CD
VIN
FB
EN
BASE
CRT
OP
DISC ^{BD18340FV-M SCP}
D
BD18341FV-M _VREG
CVREG
PWMOUT
PBUS
OPM
ROPM
GND
DCDIM
RFB1
RFB2
RLIM
CLED
RDCDIM
NTC
〇Product structure : Silicon monolithic integrated circuit
www.rohm.co.jp
©2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
〇This product has no designed protection against radioactive rays
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TSZ02201-0T1T0C700180-1-2
2016.04.21 Rev.002