AN4346 datasheet(14/33 Pages) STMICROELECTRONICS

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AN4346 データシート(PDF) 14 Page - STMicroelectronics

部品番号	AN4346

部品情報	10 W wide range - high power factor - isolated LED driver using HVLED815PF

PDF	33 Pages

Scroll/Zoom	100%

メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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14 / 33 page

Measurement results

AN4346

14/33

DocID025107 Rev 1

2.6

Power factor at different LED load number

In Figure 10 is displayed the measured power factor (PF) at a different LED load.

Figure 10. Power factor (PF) at different LED load

As shown in Figure 10 the power factor (PF) is over 0.90 in all the input voltage range

[88 - 265] Vac also varying the number of LEDs.

2.7

Line regulation at different LED load number

In Figure 11 is displayed the measured average output current versus line voltage at

different numbers of LEDs applied.

Figure 11. Average output current versus line voltage at different numbers of LEDs

applied

The output current is varying ± 3% changing the load over all the input voltage range

[88 - 265] Vac.

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