User manual

LED +

LED - LINE

NEUTRAL

J10

TP4

TP3

TP1

TP2

Demo Board Wiring Overview

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11 Demo Board Wiring Overview

Figure 22. Wiring Connection Diagram

Table 2. Test Points

Test Name I/O Description

Point

TP3 LED + Output LED Constant Current Supply

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

TP4 LED - Output LED Return Connection (not GND)

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

TP1 LINE Input AC Line Voltage

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

TP2 NEUTRAL Input AC Neutral

Connects directly to AC neutral of a 120VAC system.

12 Demo Board Assembly

Figure 23. Top View

AN-2127 LM3448 A19 Edison Retrofit Evaluation Board SNOA559B–October 2011–Revised May 2013

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