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PDF TCA62724FMG Data sheet ( Hoja de datos )
| Número de pieza | TCA62724FMG | |
| Descripción | Three-Channel Constant-Current LED Driver | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TOSHIBA CMOS Integrated Circuits Silicon Monolithic
TCA62724FMG
TCA62724FMG
Three-Channel Constant-Current LED Driver
The TCA62724FM is an optimal constant-current LED driver for RGB pixel LEDs.
The device supports 16 dimming states for each color in the RGB pixel LED
setup, resulting in 4096 colors for carrying out illumination by internal PWM.
Moreover, it is not necessary to connect external resistance to an output in
almost all cases.
The forward current of the LED is set up using the external resistor.
Features
• Output current capability and the number of outputs
outputs
: 155 mA x 3
Weight: 0.016 g (typ.)
• Constant current range
: 5 to 150 mA
• Low consumption current
Supply current at operation (Iout = 20 mA)
: 600 µA
Supply current at standby
: 1 µA
• For anode common LED
• Power supply voltage range
: VDD = 2.8 to 5.5 V
• I2C interface (I2C is a trademark of Philips Electronics N.V.)
• Package
: SON10-P-0303-0.50 (height : 0.8 mm)
Package and Pin Layout (top view)
SHDN
SDA
SCL
RESET
GND
VDD
OUT0
OUT1
OUT2
REXT
Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax: 518.785.4725
Web: www.marktechopto.com | Email: [email protected]
California Sales Office:
950 South Coast Drive, Suite 265
Costa Mesa, California 92626
Toll Free: 800.984.5337
Fax: 714.850.9314
1 page  
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Example Applications : Cellular Phone
TCA62724FMG
Application as Camera Light
(Primary-color red, green and blue LEDs combine to emit good-quality white light for color reproducibility.)
VIN
Microcontroller
SDA
SCL
SDA Bus Line
SCL Bus Line
VDD
2.8 to 5.5 V
VOUT
Camera light
TCA62724FMG
SHDN
SDA
SCL
RESET
GND
VDD
OUT 0
OUT 1
OUT 2
REXT
150 mA 150 mA 150 mA
RED GREEN
BLUE
REXT = 3.7 kΩ
Application as Cellular Phone Illumination
(Combination with the TB62733FTG and the drive of two or more cellular phone LEDs is possible.)
TB62733FTG
C1+
VOUT1 80 mA
Main Panel
VDD
2.8 to 5.5 V
C1-
C2+
C2-
VDD
FB1
0.4 V
GND
SP1
SP2
CE1
CE2
VOUT2 80 mA
FB2 0.4 V
Sub-panel
I2C BUS
VDD
TCA62724FMG 2.8 to 5.5V
5 mA
5 mA
5 mA
SHDN
SDA
SCL
RESET
GND
VDD
OUT 0
OUT 1
OUT 2
REXT
RED GREEN
BLUE
Illuminations
REXT=109kΩ
5
2005-04-19
5 Page 
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Output Current - PWM Duty (Reference Data)
TCA62724FMG
IOUT vs PWM Duty
(On PCB, All Output ON)
160
140
120
100
80
60
40 Topr = 25℃
Topr = 55℃
20 Topr = 85℃
VDD = 5.5 V
VOUT = 1 V
Tj = 150℃(MAX)
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
PWM Duty (0/15～15/15)
Power Dissipation - Operating Temperature (Reference Data)
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
Pd vs Topr
(On PCB)
20 40 60
Topr 〔℃〕
80
11 2005-04-19
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet TCA62724FMG.PDF ] | |
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