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

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“-PD” Option: 0-10VDC and Resistance Dimming

PWM In

PWM Positive Dimming Typical Circuit

LEDDC25W-XX-CXXXX-PD

PWM (+) Purple

PWM (-) Gray

Parameters

Minimum

Typical

Maximum

Absolute Maximum Voltage Range on PWM Input (Purple Wire)

-2.0V

10V

+28V

Input LOW Level Voltage Range (Purple Wire)

-2.0

0V

+7.5V

Input HIGH Level Voltage Range (Purple Wire)

+9.0

10V

28V

Sink Current into PWM Input (Purple Wire)

0mA

—

1.2mA

PWM Input Signal Frequency

200Hz

—

1000Hz

PWM Input Signal Positive Duty Cycle

0%

10-90%

100%

Notes:

1. PWM Dimmable version comes with an extra 2 wires +Purple/-Gray on the output side.

2. Below 10% Duty cycle proper dimming operation is not assured. Unit is not intended to turn off at <10% Duty Cycle.

3. PWM dimmable version output will be 100% with Purple/Gray open and minimum with Purple/Gray Shorted.

0%

10%

20%

30%

40%

50%

60%

70%

80%

90% 100%

Positive Duty Cycle

Output Current / Positive Duty Cycle

0

10

20

30

40

50

60

70

80

90

100

LEDDC25W Series

Note:

Disconnect power to LED driver for at least 30 seconds before connecting or disconnecting Driver output and LED Engine. This prevents potential arcing transients

that can damage the Engine and Driver. See Hot Plugging in our Driver Application Guide for more information.