LM3520SDX datasheet(4/14 Pages) NSC

Teilenummer	LM3520SDX

Bauteilbeschribung	Integrated White LED Driver with Organic LED Display Power Supply

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Hersteller	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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Operation Modes

LM3520 has two operating modes; Figure 2 shows main

display in PWM current mode operation, the appropriate

selection of R

FB resistor in series with four white LEDs set

the output current driving the main display. Figure 3 shows

Sub display in PFM mode, the appropriate selection of

R

SUB1 and RSUB2 resistors set the output voltage driving the

OLED subdisplay.

20128806

20128807

* Note: The current IFB1 is very small and is negligible.

20128804

FIGURE 2. Main Display

20128805

FIGURE 3. Sub Display

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