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BD83733HFP-M 데이터시트 PDF




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부품번호 BD83733HFP-M 기능
기능 1ch Source Driver
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BD83733HFP-M 데이터시트, 핀배열, 회로
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 ).
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)
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
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
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
The product is not designed for radiation resistance.
1/29
TSZ02201-0G1G0C700310-1-2
4.Feb.2015 Rev.002




BD83733HFP-M pdf, 반도체, 판매, 대치품
BD83732HFP-M / BD83733HFP-M
Datasheet
Electrical Characteristics (Unless otherwise specified Ta=-40125°C, VIN= 13V, RVIN_F=0.47, RPBUS=10k)
Parameter
Symbol
Min Typ Max UNIT
Condition
Circuit Current
IVIN
IOUT Terminal
Output Current Accuracy
IOUT
VIN – IOUT Drop Voltage
VDR_IOUT
IOUT Terminal OFF Current
IIOUT_OFF
IOUT Current at GND Short
IIOUT_SHORT
Current Sense Voltage
IOUT Voltage
at LED Open Detection
IOUT Voltage
at LED Short Detection
CRT Terminal Charge Current
VIN_F_REF
VIOUT_OPEN
VIOUT_
SHORT
ICRT_SO
CRT Terminal Voltage
CRT Terminal
Discharge Voltage 1
CRTIMER Discharge Constant
CRT Terminal
Discharge Voltage 2
CRT Terminal
Charge Resistance
DISC Terminal
Discharge Resistance 1
DISC Terminal
Discharge Resistance 2
VCRT_CHA
VCRT_DIS1
VCRT_CHA /
VCRT_DIS1
VCRT_DIS2
RCHA
RD1
RD2
PBUS Terminal De-rating Input
Voltage High
VDH_PBUS
PBUS Terminal De-rating Input
Voltage Low
De-rating Gain
PBUS Terminal
Low Voltage
PBUS Terminal
Input Current
Disable Open Detection
during low power supply voltage
BD83732HFP-M
VDL_PBUS
GD
VOL_PBUS
IIN_PBUS
VM_OPEN
BD83733HFP-M VM_OPEN
- 2.1 6.0 mA
373 383 393 mA Ta=25°C
364 383 402 mA Ta=-40°C125°C
-
0.45
1.0
V IOUT=383mA
-
-
1
μA
VIOUT=2V, VCRT=0.7V
Ta=25°C
- 7 40 μA VIOUT=0V
0.171
VIN
-0.080
0.2
0.180
VIN
-0.050
0.6
0.189
VIN
-0.020
1.0
V VIN_F_REF=VIN-VIN_F
V
V
29.75 35.00 40.25 μA VCRT=0.9V
0.990 1.10
1.21
V
2.7 3.0 3.3 V
0.348
3.6
51.6
-
0.367
4.0
54.3
50.0
0.386
4.4
57.0
100
V/V
V RD1<->RD2(Note1)
k
RCHA=(VCRT_DIS1
VCRT_CHA ) / ICRT_SO
VCRT=3.4V
2.5 5.0
10 kVCRT=5V
VIN_F_REF = 2.0mV
2.3
2.5
2.7
V
VIN_F_REF =
VIN_F_REF(@PBUS = 13V) –
VIN_F_REF(@PBUS = VDH_PBUS)
0.8 1.0 1.2 V IOUT<5µA
114
120
126
mV/V
IOUT=GD×VPBUS
VPBUS=1.5V -> 2.0V
- - 0.7 V IPBUS=2mA
- 38.0 100 μA VPBUS=13V
7.30
10.5
7.65
11.0
8.00
11.5
V VIN voltage
V VIN voltage
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/29
TSZ02201-0G1G0C700310-1-2
4.Feb.2015 Rev.002

4페이지










BD83733HFP-M 전자부품, 판매, 대치품
BD83732HFP-M / BD83733HFP-M
Datasheet
Functional Description
(Unless otherwise specified, Ta=25°C, VIN=13V, IOUT=6V and RVIN_F=0.47. Numbers are "Typical" values.)
1. Output Current Setting
LED Current IOUT can be set by value of resistor RVIN_F.
IOUT
=
(VINVIN_F)
RVIN_F
=
VIN_F_REF [A]
RVIN_F
where:
VIN_F_REF is 0.18V (Typ)
Figure 13. Output Current Setting
2. Table of Operations
The PWM dimming mode switches to linear control depending on CRT terminal voltage.
When VCRT > VCRT_DIS2( Typ ~ 4.0V ), Dimming mode turns to Linear Control, and discharge resistance of DISC
terminal changes from RD1( Typ ~ 50 ) to RD2 ( Typ ~ 5k ).
When an LED open/short-circuit fault is detected, which depends on IOUT terminal voltage, the output current is turned
OFF.
Output current is also turned OFF when PBUS terminal is pulled LOW.
Operation Mode
CRT Terminal
IOUT Terminal
Voltage
(VIOUT)
Output Current
(IOUT)
PBUS Terminal
Linear Control
4.0V(Typ)VCRT
-
50mA500mA
Hi-Z
PWM dimming
LED Current
De-rating
LED Open
OPEN
-
-
-
-
VIOUT
VIN - 0.050V(Typ)
See Features Functional
Description, 3. PWM
Dimming Operation using
external RC network
See Features Description,
9. LED Current De-rating
Function
1μA(Max)
Hi-Z
PBUS<2.5V
Low Output
LED Short
-
VIOUT 0.6V(Typ)
40μA(Max)
Low Output
PBUS Control OFF
-
-
1μA(Max)
Low Input
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/29
TSZ02201-0G1G0C700310-1-2
4.Feb.2015 Rev.002

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BD83733HFP-M

1ch Source Driver

ROHM Semiconductor
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