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PDF CAT4103 Data sheet ( Hoja de datos )
| Número de pieza | CAT4103 | |
| Descripción | 3-Channel Constant-Current RGB LED Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CAT4103 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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3-Channel Constant-Current RGB LED Driver
CAT4103
FEATURES
3 independent current sinks rated to 25V
LED current to 175mA per channel set by
separate external resistors
High-speed 25MHz 4-wire serial interface
Buffered output drivers to ensure data integrity
Cascadable devices
Low dropout current source (0.4V at 175mA)
3V to 5.5V logic supply
Thermal shutdown protection
RoHS-compliant 16-lead SOIC package
APPLICATIONS
Multi-color, intelligent LED, architectural
lighting
High-visual impact LED signs and displays
LCD backlight
DESCRIPTION
The CAT4103 is a 3-channel, linear based constant-
current LED driver designed for RGB LED control,
requiring no inductor and provides a low noise operation.
LED channel currents up to 175mA are programmed
independently via separate external resistors. Low output
voltage operation of 0.4V at 175mA allows for more
power efficient designs across wider supply voltage
range. The three LED pins are compatible with high
voltage up to 25V supporting applications with long
strings of LEDs.
A high-speed 4-wire 25MHz serial interface controls each
individual channel using a shift register and latch
configuration. Output data pins allow multiple devices to
be cascaded and programmed via one serial interface
with no need for external drivers or timing considerations.
The device also includes a blanking control pin (BIN) that
can be used to disable all channels independently of the
interface.
ORDERING INFORMATION
Part
Number
Package
Quantity
per Reel
CAT4103V-GT2 SOIC-16* 2,000
* Lead Finish NiPdAu
Package
Marking
CAT4103V
Thermal shutdown protection is incorporated in the device
to disable the LED outputs whenever the die temperature
exceeds 150ºC.
The device is available in a 16-lead SOIC package.
PIN CONFIGURATION
16-Lead SOIC (W)
Top View
GND
BIN
LIN
SIN
CIN
RSET3
RSET2
RSET1
1
2
3
4
5
6
7
8
16 VDD
15 BOUT
14 LOUT
13 SOUT
12 COUT
11 LED1
10 LED2
9 LED3
TYPICAL APPLICATION CIRCUIT
VIN
5V to 25V
VDD
3V to 5.5V
CONTROLLER
C1
1µF
VDD
RED
LED1
GREEN BLUE
LED2
LED3
BIN BOUT
LIN LOUT
CAT4103
SIN SOUT
CIN COUT
GND RSET1 RSET2 RSET3
R1 R2 R3
NEXT
CAT4103
DEVICE
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
1
Doc. No. MD-5038, Rev. A
1 page  
www.DataSheet4U.com
CAT4103
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5V, VDD = 5V, C1 = 1μF, TAMB = 25°C unless otherwise specified.
Quiescent Current vs. Input Voltage (ILED = 0mA)
1.2
Quiescent Current vs. RSET Current
8.0
No Load
1.0
6.0
0.8 4.0
0.6 2.0
0.4
3.0
3.5 4.0 4.5 5.0
INPUT VOLTAGE [V]
5.5
Quiescent Current vs. Input Voltage (ILED = 175mA)
6.0
Full Load
5.5
5.0
4.5
4.0
3.0
3.5 4.0 4.5 5.0
INPUT VOLTAGE [V]
5.5
LED Current Change vs. Input Voltage
200
160
120
80
40
0
3.0
3.5 4.0 4.5 5.0
INPUT VOLTAGE [V]
5.5
0.0
0
100 200 300
RSET CURRENT [μA]
400
LED Current vs. LED Pin Voltage
200
160
120
80
40
0
0.0
0.2 0.4 0.6 0.8
LED PIN VOLTAGE [V]
1.0
LED Current Change vs. Temperature
200
160
120
80
40
0
-40
0 40 80
TEMPERATURE [ºC]
120
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
5
Doc. No. MD-5038, Rev. A
5 Page 
www.DataSheet4U.com
PACKAGE OUTLINE DRAWING
SOIC 16-LEAD 150MILS (V) (1)(2)
0
PIN#1 IDENTIFICATION
TOP VIEW
D
A
e
b
SIDE VIEW
CAT4103
E1 E
SYMBOL
A
A1
b
c
D
E
E1
e
h
L
θ
MIN
1.35
0.10
0.33
0.19
9.80
5.80
3.80
0.25
0.40
0º
NOM
9.90
6.00
3.90
1.27 BSC
MAX
1.75
0.25
0.51
0.25
10.00
6.20
4.00
0.50
1.27
8º
h
θ
L
A1
END VIEW
c
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions in millimeters. Angle in degrees.
(2) Compiles with JEDEC standard-012.
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
11
Doc. No. MD-5038, Rev. A
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet CAT4103.PDF ] | |
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