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LM3551 Datasheet(PDF) 6 Page - Texas Instruments

Part # LM3551
Description  1A White LED Driver with Flash Timeout Protection
PDF  23 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3551 Datasheet(HTML) 6 Page - Texas Instruments

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LM3551, LM3552
SNVS371C – AUGUST 2005 – REVISED MARCH 2011
www.ti.com
Typical Performance Characteristics (continued)
Unless otherwise specified: TA = +25°C; VIN = 3.6V; L = 4.7µH, (RC = 10kΩ, CC = 4.7nF, CIN = COUT = 10µF for Lumiled LED),
(RC = 27kΩ, CC = 10nF, CIN = 10µF, COUT = 4.7µF for Sharp LED), CFTO = 1µF, CSS= 0.1µF.
LED Torch Current
LED Flash Current
vs.
vs.
Input Voltage
Input Voltage
Lumiled Flash LED
Lumiled Flash LED
Figure 8.
Figure 9.
OVP Trip Voltage
Switching Frequency
vs.
vs.
Input Voltage
Input Voltage
Figure 10.
Figure 11.
Start-Up Waveform
Start-Up Waveform
Sharp LED
Lumiled LED
Figure 12. Ch1 = VSD, Ch3 = ILED, Ch4 = IIN
Figure 13. Ch1 = VSD, Ch3 = ILED, Ch4 = IIN
6
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Copyright © 2005–2011, Texas Instruments Incorporated
Product Folder Links: LM3551 LM3552



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