User manual

LED +

LED -

LINE

NEUTRAL

TP3

TP2

TP4

TP5

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Demo Board Wiring Overview

8 Demo Board Wiring Overview

Figure 5. Wiring Connection Diagram

Table 2. Wiring Connection

Test Name I/O Description

Point

TP3 LED + Output LED Constant Current Supply

Supplies voltage and constant-current to anode of LED string.

TP2 LED - Output LED Return Connection (not GND)

Connects to cathode of LED string. Do NOT connect to GND.

TP4 LINE Input AC Line Voltage

Connects directly to AC line or output of TRIAC dimmer of a 120VAC system.

TP5 NEUTRAL Input AC Neutral

Connects directly to AC neutral of a 120VAC system.

SNVA429C–August 2010–Revised May 2013 AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver

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