Thomas Research Products • 1225 Bowes Rd • Elgin, IL 60123 • T 847-515-3057 • F 847-515-3047 • www.trpssl.com

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Dimming Control Details

Notes:

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

2. For the driver to operate properly, the load voltage must be maintained above the minimum voltage threshold

(approx. 50% of the max. output voltage for any given model).

3. 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 output current varying from 10% to 100% of Ir.

4. The dimming signal is allowed to be less than 1V, however, when it is 0-1V, the output current is 10%Ir.

5. Do not connect the Gray dimming control lead to the black output-current lead.

Parameters

Minimum

Typical

Maximum

10V output voltage

9.8 V

10 V

10.2 V

Absolute maximum voltage on the 0-10V input pin

0 V

—

12 V

Source current on 0-10V input pin

0 mA

—

0.5 mA

Value of Rin (the resistor inside the LED driver which is

located between the 1-10V input pin and the Vcc output pin)

19.8K

20K

20.2K

The dimmer control is operated from an input signal of 1 – 10 Vdc. Recommended implementations are provided below.

Output Current / Dimming Voltage

0%

20%

40%

60%

80%

100%

0

1

2

3

4

5

6

7

9

8

10

Io/Ir / Rx

0%

20%

40%

60%

80%

100%

0 15 30 45 60 75 90 105 120 135 150 165 180 200 220 240

Option 1 - DC Input

Rin

Rx

Vcc

1-10V Input (Purple)

GND (Gray)

1-10Vdc V

Option 2 - External Resistor

TRC-096SxxxxDT

TRC-096SxxxxDT

Rin

Vcc

1-10V Input (Purple)

GND (Gray)

TRC-096 Dimming Series