CAT4103 PDF даташит
Спецификация CAT4103 изготовлена «ON Semiconductor» и имеет функцию, называемую «3-Channel Constant-Current RGB LED Driver». |
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Детали детали
Номер произв | CAT4103 |
Описание | 3-Channel Constant-Current RGB LED Driver |
Производители | ON Semiconductor |
логотип |
13 Pages
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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
No Preview Available ! |
CAT4103
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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
Human Body Model
Machine Model
Rating
6
-0.3V to VDD+0.3V
-0.3V to VDD+0.3V
25
200
-55 to +160
-40 to +150
300
Units
V
V
V
V
mA
°C
°C
°C
2000
200
V
RECOMMENDED OPERATING CONDITIONS
Parameter
Range
Units
VDD
Voltage applied to LED1 to LED3, outputs off
Voltage applied to LED1 to LED3, outputs on
Output Current on LED1 to LED3
Ambient Temperature Range
3.0 to 5.5
up to 25
up to 6*
2 to 175
-40 to +85
V
V
V
mA
°C
* Keeping the LEDx pin voltage below 6V in operation is recommended to minimize thermal dissipation in the package.
ELECTRICAL OPERATING CHARACTERISTICS
DC CHARACTERISTICS
Min and Max values are over recommended operating conditions unless specified otherwise.
Typical values are at VIN = 5.0V, TAMB = 25°C
Symbol Name
Conditions
Min Typ Max Units
IDD1 Supply Current Outputs Off
IDD2 Supply Current Outputs Off
IDD3 Supply Current Outputs On
IDD4 Supply Current Outputs On
ILKG LED Output Leakage
RLIN LIN Pull-down Resistance
RBIN BIN Pull-up Resistance
VLED = 5V, RSET = 24.9kΩ
VLED = 5V, RSET = 5.23kΩ
VLED = 0.5V, RSET = 24.9kΩ
VLED = 0.5V, RSET = 5.23kΩ
VLED = 5V, Outputs Off
-1
140
140
25
4 10
25
4 10
1
180 250
180 250
mA
mA
mA
mA
µA
kΩ
kΩ
VIH Logic high input voltage
VIL Logic low input voltage
0.3x VDD
0.7x VDD V
IIL
Logic Input Leakage Current
(CIN, SIN)
VI = VDD or GND
-5 0 5 µA
VOH xOUT Logic High Output Voltage IOH = -1mA
VOL xOUT Logic Low Output Voltage IOL = 1mA
VCC-0.3V
0.3 V
VRSET
TSD
THYS
RSETx Regulated Voltage
Thermal Shutdown
Thermal Hysteresis
1.17 1.2 1.23
150
20
V
°C
°C
ILED/IRSET RSET to LED Current Gain ratio 100mA LED Current
400
VUVLO
Undervoltage Lockout (UVLO)
Threshold
1.8 V
Doc. No. MD-5038, Rev. A
2 © 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
No Preview Available ! |
www.DataSheet4U.com
CAT4103
TIMING CHARACTERISTICS
Min and Max values are over recommended operating conditions unless specified otherwise.
Typical values are at VIN = 5.0V, TAMB = 25°C
Symbol Name
Conditions
Min Typ Max
CIN
fcin CIN Clock Frequency
tcwh CIN Pulse Width High
tcwl CIN Pulse Width Low
25
18
18
SIN
tssu Setup time SIN to CIN
tsh Hold time SIN to CIN
LIN
4
4
Tlwh
tlchd
tlcsu
LEDn
LIN Pulse width
Hold time LIN to CIN
Setup time LIN to CIN
20
4
8
tledplon
tledploff
tledpbon
tledpboff
tledr
tledf
Turn on Propagation delay LIN
Turn off Propagation delay LIN
Turn on Propagation delay BIN
Turn off Propagation delay BIN
LED rise time (10% to 90%)
LED fall time (90% to 10%)
LIN to LED(n) on
LIN to LED(n) off
BIN to LED(n) on
BIN to LED(n) off
Pullup resistor = 50Ω to 3.0V
Pullup resistor = 50Ω to 3.0V
380
130
380
130
160
140
SOUT
tsr
tsf
tsdf
tsdr
COUT
SOUT rise time (10% to 90%)
SOUT fall time (90% to 10%)
Propagation delay time SOUT
Propagation delay time SOUT
CL = 15pF
CL = 15pF
CIN falling to SOUT falling
CIN falling to SOUT rising
5
5
6 18
6 18
tcr COUT rise time (10% to 90%) CL = 15pF
tcf COUT fall time (90% to 10%) CL = 15pF
tcdf Propagation delay time COUT CIN falling to COUT falling
tcdr Propagation delay time COUT CIN rising to COUT rising
5
5
4 10
4 10
LOUT
tlr
tlf
tldf
tldr
BOUT
LOUT rise time (10% to 90%)
LOUT fall time (90% to 10%)
Propagation delay time LOUT
Propagation delay time LOUT
CL = 15pF
CL = 15pF
LIN falling to LOUT falling
LIN rising to LOUT rising
5
5
4 10
5 10
tbr BOUT rise time (10% to 90%) CL = 15pF
tbf BOUT fall time (90% to 10%) CL = 15pF
tbdf Propagation delay time BOUT BIN falling to BOUT falling
tbdr Propagation delay time BOUT BIN rising to BOUT rising
5
5
6 20
8 20
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
3
Doc. No. MD-5038, Rev. A
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