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TCA62723FMGのメーカーはToshibaです、この部品の機能は「Three-Channel Constant-Current LED Driver」です。 |
部品番号 | TCA62723FMG |
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部品説明 | Three-Channel Constant-Current LED Driver | ||
メーカ | Toshiba | ||
ロゴ | |||
このページの下部にプレビューとTCA62723FMGダウンロード(pdfファイル)リンクがあります。 Total 13 pages
TCA62723FMG
TOSHIBA CMOS Integrated Circuits Silicon Monolithic
TCA62723FMG
Three-Channel Constant-Current LED Driver
The TCA62723FMG is an optimal constant-current LED driver for RGB pixel
LEDs.
This IC does not have to connect external resistance to each output in the
case of most. The output current of 3ch is set up by one external resistance.
Features
• Power supply voltage range
• Constant current range
• Low consumption current
At the time of IC operation mode (Iout = 20 mA/DC)
At the time of IC power-saving mode
• For anode common LED
• Package
: 2.7 to 5.5 V
: 5 to 150 mA
Weight: 0.018 g (typ.)
: 700 μA (MAX)
: 10 μA (MAX)
: SON10-P-0303-0.50
1 2010-06-10
1 Page Block Diagram
VIN
CTL0
CTL1
CTL2
Constant current output
circuit
TCA62723FMG
OUT0
OUT1
OUT2
SHDN
GND
Reference current
circuit
REXT
Application Circuit Example
VIN
2.7V~5.5V
TCA62723FMG
SHDN
CTL0
CTL1
CTL2
GND
VIN
OUT 0
OUT 1
OUT 2
REXT
VOUT
REXT
3 2010-06-10
3Pages 2) Method of inputting PMW signal to terminal REXT
IOUT can be set according to the next expression.
IOUT=
1.17V+
(1.17V – VCONT)×REXT
RCONT
REXT
×460
VCONT=D×VPWM D: PWM Duty (%)
RCONT=R1+R2
Please define the cutoff frequency to the next expression. (fC ≤ fPWM)
1
fC = 2 × × R × C
R1× R2
R = R1 + R2
VIN
2.7V~5.5V
VOUT
VPWM
0V~2.6V
TCA62723FMG
SHDN
CTL0
CTL1
CTL2
GND
VIN
OUT 0
OUT 1
OUT 2
REXT
R2 C
R1
REXT
TCA62723FMG
Current Dimming Control (Reference data)
R1=9.1kΩ, R2=8.2kΩ, REXT=8.2kΩ, C=0.22uF
120
100
80
60
40
20
0
0
fPWM=1kHz
10 20 30 40 50 60 70 80 90
PW M Duty (%)
Note: These application examples are provided for reference only. Thorough evaluation and testing
should be implemented when designing your application's mass production design.
6 2010-06-10
6 Page | |||
ページ | 合計 : 13 ページ | ||
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PDF ダウンロード | [ TCA62723FMG データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
TCA62723FMG | Three-Channel Constant-Current LED Driver | Toshiba |