DM115B 参数 Datasheet PDF下载

點晶科技股�½有限公司

SILICON TOUCH TECHNOLOGY INC.

DM115B

Output Current vs. External Resistor

70

60

50

Iout (mA)

40

30

20

10

0

0

200

400

600

800

1000 1200 1400 1600 1800

Rext (Ohm)

Iout

≈

1.3V / Rext * 12.5

Output Current Performance vs. Output Voltage

60

55

50

45

40

Iout (mA)

35

30

25

20

15

10

5

0

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5

Vout (V)

Note: In order to obtain a good constant current output, a suitable output voltage is necessary. Users can get

related information about the minimum output voltage from the above graph.

Page 10

8-BIT CONSTANT CURRENT LED DRIVERS with 3.3V~5V supply voltage

Version:A.001