V-Tec C5-AT25/D4 Instrukcja Użytkownika Pobierz pdf (Strona 6)

User manual Rev. 1.1 — 15 October 2014 6 of 24

NXP Semiconductors

UM10812

SSL5301DB1233 230 V 36 W LED driver demo board

5. Board connections

The SSL5301DB1233 demo board is supplied using 230 V voltage. Figure 3 shows the

board connections.

Remarks:

• Make all connections with the input mains supply switched off.

• Use a protective shield over the application. Never touch the board when measuring

or testing.

Connections and testing:

• Connect a 16-LED string load to J1 of the SSL5301DB1233 demo board. Connect a

power meter at both the X9 input and the J1 output.

• Connect the 230 V mains to the input connection points of the flyback converter using

an isolating transformer (initially set to 0 V). Alternatively, use an AC power supply

with limited output current capability (for example, 500 mA).

• Set V

mains

to the voltages as indicated in Table 3.

Table 2. Input and output connections

Figure 8

(top view) shows the connectors.

Connector Function Comment

X9 230 V mains input live and neutral between pins 1

and 2 of X9

J1 LED load pin 1 of J1 to + LED load

pin 2 of J1 to - LED load

S2 For measurement purposes

only (option 1)

during measurements on the

demo board using oscilloscope

probes, connect 10 V to pin 2 of

S2. Short pins 2 and 3 of S3

S3 For measurement purposes

only (option 2)

during measurements on the

demo board using oscilloscope

probes, short pins 1 and 2 of S3

Fig 3. SSL5301DB1233 demo board connections with 16-string LED load

1 2 3 4 5 6 7 8 9 10 11 ... 23 24

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V-Tec C5-AT25/D4 Instrukcja Użytkownika Strona 6