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LM3502SQX-44 Datasheet(PDF) 10 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM3502SQX-44
Description  Step-Up Converter for White LED Applications
Download  18 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3502SQX-44 Datasheet(HTML) 10 Page - National Semiconductor (TI)

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Typical Performance Characteristics ( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3.
Efficiency:
η =P
OUT/PIN = [(VOUT –VFb)*IOUT]/[VIN *IIN]. TA= 25˚C, unless otherwise stated.) (Continued)
6 LED Efficiency vs LED Current
4 LED Efficiency vs LED Current
20131713
20131714
Cntrl Pin Current vs Cntrl Pin Voltage
Maximum Duty Cycle vs Temperature
20131715
20131716
En1 Pin Current vs En1 Pin Voltage
En2 Pin Current vs En2 Pin Voltage
20131717
20131718
www.national.com
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