LE75S-CD

75W Single Output

LED Driver Series

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LE75S-CD 15-April-13

4

Dimming Control

The dimming function shown below uses an internal pull-up resistor, with the output at full load when the dimming leads are not connected (floated).

Parameters:

Parameter

Min.

Typ.

Max.

Notes

10V Output Voltage

9.8V

10V

10.2V

10V Output Source Current

0mA

-

10mA

Absolute Max. Voltage on the 1-10V input

-2V

-

12V

Source Current on the 1-10V input

0mA

-

0.5mA

Value of Rin (resistor inside the LED Driver, which is located

between the 1-10V input and 10V output

19.8K

20K

20.2K

Dimming Configuration using External Voltage

Dimming Configuration using External Voltage

Dimming Configuration using External Resistance

Dimming Control Notes:

1. If the dimming function is not used, leave the dimming leads unconnected (floating).

2. Io is the actual output current and Ir is the rated current without dimming control.

3. For the driver to operate properly, the load voltage must be maintained above the minimum voltage threshold (~50% of the maximum output voltage for the specific

model).

4. If the output voltage is maintained above 50% of the maximum output voltage, the dimming control may be operated over the entire 1-10V range with the output current

varying from 100% down to ~10% of nominal.

5. The dimming signal may be <1V, but if this voltage is <1V, the output current can only maintain ~10% Ir. When the signal voltage is ~8.5-10V, the output current can

maintain ~100% Ir.

6. Do not connect the GND of the dimming leads to output. The driver will not function normally if it is.

Data Sheet © 2012 SL Power Electronics Corp. The information and specifications contained herein are believed to be correct at the time of publication. However, SL Power accepts no responsibility for

consequences arising from reproduction errors or inaccuracies. Specifications are subject to change without notice.

LE75SXXXCD

LE75SXXXCD