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PDF CAT4109 Data sheet ( Hoja de datos )
| Número de pieza | CAT4109 | |
| Descripción | 3-Channel Constant-Current RGB LED Driver | |
| Fabricantes | ON Semiconductor | |
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CAT4109, CAV4109
3-Channel Constant-Current
RGB LED Driver with
Individual PWM Dimming
Description
The CAT4109/CAV4109 is a 3−channel constant−current LED
driver, requiring no inductor. LED channel currents up to 175 mA are
programmed independently via separate external resistors. Low output
voltage operation of 0.4 V at 175 mA allows for more power efficient
designs across wider supply voltage range. The three LED pins are
compatible with high voltage up to 25 V supporting applications with
long strings of LEDs.
Three independent control inputs PWM1, PWM2, PWM3, control
respectively LED1, LED2, LED3 channels. The device also includes
an output enable (OE) control pin to disable all three channels
independently of the PWMx input states.
Thermal shutdown protection is incorporated in the device to
disable the LED outputs whenever the die temperature exceeds 150°C.
The device is available in a 16−lead SOIC package.
Features
• 3 Independent Current Sinks up to 175 mA rated 25 V
• LED Current Set by External Low Power Control Resistors
• Individual PWM Control per Channel
• Low Dropout Current Source (0.4 V at 175 mA)
• Output Enable Input for Dimming
• “Zero” Current Shutdown Mode
• 3 V to 5.5 V Logic Supply
• Thermal Shutdown Protection
• 16−lead SOIC Package
• CAV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Application
• Multi−color LED, Architectural Lighting
• LED Signs and Displays
• LCD Backlight
www.onsemi.com
SOIC−16
V SUFFIX
CASE 751BG
PIN CONNECTIONS
1
PGND
VDD
GND
OE
PWM3
NC
PWM2
NC
PWM1
NC
RSET3
LED1
RSET2
LED2
RSET1
(Top View)
LED3
MARKING DIAGRAM
L3A
CAT4109VB
YMXXXX
L = Assembly Location
3 = PB Free
A = Product Revision (Fixed as “A”)
CAT4109V = Device Code
B = Leave Blank
Y = Production Year (Last Digit)
M = Production Month (1−9, O, N, D)
XXXX = Last Four Digits of Assembly Lot Number
ORDERING INFORMATION
Device
CAT4109V−GT2
(Note 1)
Package
SOIC−16
(Pb−Free)
Shipping
2,000/
Tape & Reel
CAV4109V−GT2
(Note 1)
SOIC−16
(Pb−Free)
2,000/
Tape & Reel
1. Lead Finish Pb−Free
© Semiconductor Components Industries, LLC, 2015
May, 2015 − Rev. 6
1
Publication Order Number:
CAT4109/D
1 page  
CAT4109, CAV4109
TYPICAL PERFORMANCE CHARACTERISTICS
(VIN = 5 V, VDD = 5 V, C1 = 1 mF, TAMB = 25°C unless otherwise specified.)
1.2 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
INPUT VOLTAGE (V)
5.0
5.5
Figure 3. Quiescent Current vs. Input Voltage
(ILED = 0 mA)
6.0
Full Load
5.5
5.0
4.5
4.0
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Figure 5. Quiescent Current vs. Input Voltage
(ILED = 175 mA)
200
160
120
80
40
0
3.0 3.5 4.0 4.5 5.0
INPUT VOLTAGE (V)
Figure 7. LED Current Change vs. Input
Voltage
5.5
0
0 100 200 300 400
RSET CURRENT (mA)
Figure 4. Quiescent Current vs. RSET Current
200
160
120
80
40
0
0 0.2 0.4 0.6 0.8 1.0
LED PIN VOLTAGE (V)
Figure 6. LED Current vs. LED Pin Voltage
200
160
120
80
40
0
−40
0 40 80
TEMPERATURE (°C)
Figure 8. LED Current Change vs.
Temperature
120
www.onsemi.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CAT4109.PDF ] | |
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