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PDF BD7851FP Data sheet ( Hoja de datos )
| Número de pieza | BD7851FP | |
| Descripción | 16 Bits Constant Current LED Driver | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
16 Bits Constant Current LED Driver
BD7851FP
General Description
BD7851FP is constant current LED driver which
incorporates built-in 16 bits shift register and latch
circuit.
A single external resistor can set the output current value
of the constant current up to a maximum of 50mA.
Key Specifications
Power Supply Voltage Range:
Output Current:
Frequency CLOCK:
Quiescent Current:
Operating Temperature Range:
4.5V to 5.5V
50mA
10MHz(Max)
0.7mA(Typ)
-30°C to +85°C
Features
The Constant Current Output
Output line: 16 Bits
Output type: Open Collector
Cascade connection is possible
Package
W(Typ) x D(Typ) x H(Max)
Applications
For AV equipment such as audio stereo sets, videos
and TV sets, PCs, microcontroller-based mounted
equipment.
HSOP25
13.60mm x 7.80mm x 2.11mm
Typical Application Circuit
VCC
C1
(Note 1)
MPU
GND
OUT1 OUT2
VCC
S_IN
CLOCK
LATCH
ENABLE_B
OUT14 OUT15 OUT16
R_IREF
GND
SOUT
VCC
S_IN
CLOCK
LATCH
ENABLE_B
OUT1 OUT2
OUT14 OUT15 OUT16
R_IREF
GND
SOUT
(Note 1) C1 must be placed as close to the VCC terminal as possible.
○Product structure：Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
1/12
TSZ02201-0M2M0CZ15040-1-2
09.Feb.2016 Rev.001
1 page  
BD7851FP
Application Information
1. Test Circuit 1
LATCH
S_IN
1 GND
R
2 R_IREF
3 LATCH
4 S_IN
5 OUT16
6 OUT15
7 OUT14
8 OUT13
9 OUT12
10 OUT11
11 OUT10
12 OUT9
13 OUT8
VCC 25
ENABLE_B 24
CLOCK 23
SOUT 22
OUT1 21
OUT2 20
VCC
ENABLE_B
CLOCK
SOUT
VOUT
OUT3 19
OUT4 18
OUT5 17
P_GND 16
OUT6 15
OUT7 14
P_GND
2. Test Circuit 2
LATCH
S_IN
1 GND
R
2 R_IREF
3 LATCH
4 S_IN
5 OUT16
6 OUT15
7 OUT14
8 OUT13
9 OUT12
10 OUT11
11 OUT10
12 OUT9
13 OUT8
VCC 25
ENABLE_B 24
CLOCK 23
SOUT 22
OUT1 21
OUT2 20
VCC
ENABLE_B
CLOCK
SOUT
VOUT
OUT3 19
OUT4 18
OUT5 17
P_GND 16
OUT6 15
OUT7 14
P_GND
(Note) R=51Ω (Note : RR_IREF=1.3kΩ) , C=15pF
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/12
TSZ02201-0M2M0CZ15040-1-2
09.Feb.2016 Rev.001
5 Page 
BD7851FP
Physical Dimension, Tape and Reel Information
Package Name
HSOP25
Max 13.95 (include. BURR)
（UNIT：mm）
PKG：HSOP25
Drawing: EX139-5001
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/12
TSZ02201-0M2M0CZ15040-1-2
09.Feb.2016 Rev.001
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet BD7851FP.PDF ] | |
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