cat4103 ON Semiconductor, cat4103 Datasheet

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cat4103

Manufacturer Part Number
cat4103
Description
3-channel Constant-current Rgb Led Driver
Manufacturer
ON Semiconductor
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
cat4103V-GT2
Manufacturer:
ON
Quantity:
1 300
Part Number:
cat4103V-GT2
Manufacturer:
ON Semiconductor
Quantity:
1 550
3-Channel Constant-Current RGB LED Driver
FEATURES
APPLICATIONS
ORDERING INFORMATION
* Lead Finish NiPdAu
PIN CONFIGURATION
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
CAT4103V-GT2
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
Multi-color, intelligent LED, architectural
lighting
High-visual impact LED signs and displays
LCD backlight
Number
Part
RSET3
RSET2
RSET1
GND
CIN
BIN
SIN
LIN
SOIC-16*
Package
16-Lead SOIC (W)
1
2
3
4
5
6
7
8
Top View
Quantity
per Reel
16
15
14
13
12
10
11
2,000
9
VDD
BOUT
LOUT
SOUT
COUT
LED1
LED2
LED3
CAT4103V
Package
Marking
1
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.
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.
TYPICAL APPLICATION CIRCUIT
3V to 5.5V
5V to 25V
CONTROLLER
VDD
VIN
C1
1µF
BIN
LIN
SIN
CIN
VDD
GND RSET1
LED1
RED
R1
CAT4103
RSET2
LED2
GREEN
R2
RSET3
LED3
COUT
BOUT
SOUT
LOUT
BLUE
R3
CAT4103
Doc. No. MD-5038, Rev. A
CAT4103
DEVICE
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cat4103 Summary of contents

Page 1

... SCILLC. All rights reserved. Characteristics subject to change without notice 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 ...

Page 2

... CAT4103 ABSOLUTE MAXIMUM RATINGS Parameter VDD Voltage Input Voltage Range (SIN, BIN, CIN, LIN) Output voltage range (SOUT, BOUT, COUT, LOUT) LED1, LED2, LED3 Voltage DC Output Current on LED1 to LED3 Storage Temperature Range Junction Temperature Range Lead Soldering Temperature (10sec.) ESD Rating: All Pins ...

Page 3

... CIN falling to COUT falling CIN rising to COUT rising C = 15pF 15pF L LIN falling to LOUT falling LIN rising to LOUT rising C = 15pF 15pF L BIN falling to BOUT falling BIN rising to BOUT rising 3 CAT4103 Min Typ Max Units 25 MHz ...

Page 4

... CAT4103 CIN t t ssu sh SIN SOUT LIN t ledploff LIN BIN LED(n) Doc. No. MD-5038, Rev. A 1/f cin t t cwl cwh t t sdf lchd t sdr Figure 2. Timing Diagram A t ledplon Figure 3. Timing Diagram lcsu t lwd t ledpboff t ledpbon © 2008 SCILLC. All rights reserved. ...

Page 5

... INPUT VOLTAGE [V] © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice = 25°C unless otherwise specified. = 0mA) LED 4.5 5.0 5.5 = 175mA) LED Current vs. LED Pin Voltage LED 4.5 5.0 5.5 4.5 5.0 5.5 5 CAT4103 Quiescent Current vs. RSET Current 8.0 6.0 4.0 2.0 0.0 0 100 200 300 RSET CURRENT [μA] 200 160 120 0.0 ...

Page 6

... CAT4103 TYPICAL PERFORMANCE CHARACTERISTICS 1μ AMB RSET Pin Voltage vs. Input Voltage 1.30 1.25 1.20 1.15 1.10 3.0 3.5 4.0 INPUT VOLTAGE [V] LED Current vs. RSET Resistor 200 160 120 RSET [kΩ] Doc. No. MD-5038, Rev 25°C unless otherwise specified. 4.5 5.0 5 RSET Pin Voltage vs. Temperature 1 ...

Page 7

... LOUT is a driven output of LIN and can be connected to the next chip in the cascade. BOUT is a driven output of BIN and can be connected to the next chip in the cascade. VDD is the positive supply pin voltage for the entire device. A small 1µF ceramic capacitor is recommended close to the pin. 7 CAT4103 Doc. No. MD-5038, Rev. A ...

Page 8

... RSET[kΩ] All 4-wire inputs have a corresponding output driver 24.9 for cascaded systems (SOUT, COUT, LOUT, BOUT). 8.45 These output buffers allow many CAT4103 drivers to 5.23 be cascaded without signal and timing degradation due to long wire interconnections. 3.01 8 © 2008 SCILLC. All rights reserved. ...

Page 9

... APPLICATION INFORMATION CASCADING MULTIPLE DEVICES The CAT4103 is designed to be cascaded for driving multiple RGD LEDs. Figure 5 shows three CAT4103 drivers cascaded together. The programming data from the controller travels serially through each device. Figure 4 shows a programming example turning on the following LED channels: BLUE3, GREEN2 and RED1 ...

Page 10

... CAT4103 POWER DISSIPATION The power dissipation ( the CAT4103 can be D calculated as follows × + Σ LEDN where V is the voltage at the LED pin, and I LEDN the associated LED current. Combinations of high V voltage or high ambient temperature can cause LED ...

Page 11

... All dimensions in millimeters. Angle in degrees. (2) Compiles with JEDEC standard-012. © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice SYMBOL MIN A 1.35 A1 0.10 b 0. 9.80 E 5. 0.25 L 0.40 θ 0º h θ END VIEW 11 CAT4103 NOM MAX 1.75 0.25 0.51 0.25 9.90 10.00 6.00 6.20 3.90 4.00 1.27 BSC 0.50 1.27 8º c Doc. No. MD-5038, Rev. A ...

Page 12

... Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard plated finish is NiPdAu. (3) The device used in the above example is a CAT4103V-GT2 (SOIC, NiPdAu, Tape & Reel, 2,000/Reel). (4) For additional temperature options, please contact your nearest ON Semiconductor Sales office. Doc. No. MD-5038, Rev. A (1) ...

Page 13

... N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center: Phone: 81-3-5773-3850 13 CAT4103 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative Doc. No. MD-5038, Rev. A ...

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