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DM413 Scheda tecnica(PDF) 9 Page - Silicon Touch Technology Inc. |
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DM413 Scheda tecnica(HTML) 9 Page - Silicon Touch Technology Inc. |
9 / 18 page 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC . 新竹市科學園區展業一路9號7樓之1 9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 3-CHANNEL CONSTANT CURRENT LED DRIVERS Version:A.002 Page 8 DM413 Constant-Current Output Constant-current value of each output channel is set by an external resistor connected between the R(G、B)REX pin and GND individually. Varying the resistor value can adjust the current scale ranging from 5mA to 100mA. The output current value is calculated roughly by the following equation: Iout(mA) ~ 0.6 V REX (ohm) × 1000 Output Current as a Function of REX value 0 10 20 30 40 50 60 70 80 90 100 110 0 10 203040 506070 8090 100 110 120 REX (ohm) Output Current as a Function of Output Voltage 0 10 20 30 40 50 60 70 80 90 100 110 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 Vout (volt) |
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