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LM3557 Fiches technique(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce LM3557
Description  Step-Up Converter for White LED Applications
Download  11 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3557 Fiches technique(HTML) 6 Page - National Semiconductor (TI)

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Typical Performance Characteristics ( Circuit in Figure 1: L = DO1608C-223, D = SS16, and LED =
LWT67C. Efficiency:
η =P
OUT/PIN = [(VOUT –VFb)*IOUT]/[VIN *IIN]. TA= 25˚C, unless otherwise stated). (Continued)
En PIN CURRENT vs En PIN VOLTAGE
CURRENT LIMIT vs TEMPERATURE
20131608
20131609
OVP PIN CURRENT vs TEMPERATURE
R
DS(ON) (Figure 2: N1) vs TEMPERATURE
20131610
20131611
R
Sw2(Figure 2: N2) vs TEMPERATURE
ENABLE THRESHOLD vs TEMPERATURE
20131612
20131613
Application Information
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Numéro de composants électroniques

No de pièceDescriptionHtml ViewFabricant
LM3557 Step-Up Converter for White LED Applications 1  2  3  4  5  More National Semiconductor (TI)
LM3501 Synchronous Step-up DC/DC Converter for White LED Applications 1  2  3  4  5  More National Semiconductor (TI)
LM3502 Step-Up Converter for White LED Applications 1  2  3  4  5  More National Semiconductor (TI)
LM3500 Synchronous Step-up DC/DC Converter for White LED 1  2  3  4  5  More National Semiconductor (TI)
MAX1582 High-Efficiency 26V Step-Up Converter for White LED Main and Subdisplay Backlighting 1  2  3  4  5  More Maxim Integrated Products
TB62731FUG Step-up DC-DC Converter for White LED Driver 1  2  3  4  5  More Marktech Corporate
TB62752AFUG Step Up Type DC/DC Converter for White LED 1  2  3  4  5  More Marktech Corporate
AAT3169 High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications 1  2  3  4  5  More Advanced Analogic Technologies
AIC1647 WHITE LED STEP-UP CONVERTER IN SOT23 1  2  3  4  5  More Analog Intergrations Corporation
TB62756FUG Step-up Type DC/DC Converter for White LEDs 1  2  3  4  5  More Marktech Corporate

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