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LM3697 Datasheet(PDF) 9 Page - Texas Instruments

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Part No. LM3697
Description  High-Efficiency Three-String White LED Driver
Download  36 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3697 Datasheet(HTML) 9 Page - Texas Instruments

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ILED (mA)
Three String, L=10µH, 500kHz
C002
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ILED (mA)
Three String, L=10µH, 1MHz
C002
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ILED (mA)
Two String, L=22µH, 500kHz
C002
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ILED (mA)
Two String, L=22µH, 1MHz
C002
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ILED (mA)
Three String, L=22µH, 500kHz
C002
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ILED (mA)
Three String, L=22µH, 1MHz
C002
LM3697
www.ti.com
SNOSCS2A – NOVEMBER 2013 – REVISED DECEMBER 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 3.6V, LEDs are WLEDs part # SML-312WBCW(A), Typical Application Circuit with L = TDK (VLF302512, 4.7 µH, 10 µH,
22 µH where specified), Schottky = On-Semi (NSR0240V2T1G), TA = +25°C unless otherwise specified. Efficiency is given as
VOUT × (IHVLED1 + IHVLED2 + IHVLED3)/(VIN × IIN), matching curves are given as (ΔILED_MAX/ILED_AVE).
Top to Bottom:3x3, 3x4, 3x5, 3x6, 3x7 (LEDs)
Top to Bottom:3x3, 3x4, 3x5, 3x6, 3x7 (LEDs)
Figure 21. LED Efficiency vs ILED, VIN=3.6V
Figure 22. LED Efficiency vs ILED, VIN=3.6V
Top to Bottom:2x3, 2x4, 2x5, 2x6, 2x7, 2x8, 2x9, 2x10 (LEDs)
Top to Bottom:2x3, 2x4, 2x5, 2x6, 2x7, 2x8, 2x9, 2x10 (LEDs)
Figure 23. LED Efficiency vs ILED, VIN=3.6V
Figure 24. LED Efficiency vs ILED, VIN=3.6V
Top to Bottom:3x3, 3x4, 3x5, 3x6, 3x7 (LEDs)
Top to Bottom:3x3, 3x4, 3x5, 3x6, 3x7 (LEDs)
Figure 25. LED Efficiency vs ILED, VIN=3.6V
Figure 26. LED Efficiency vs ILED, VIN=3.6V
Copyright © 2013, Texas Instruments Incorporated
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