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LX1996 Datasheet(PDF) 9 Page - Microsemi Corporation

Part # LX1996
Description  Multi-string LED Back-light Controller
PDF  22 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

LX1996 Datasheet(HTML) 9 Page - Microsemi Corporation

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LX1996
PRODUCTION DATASHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
Copyright
© 2007
Rev. 1.0, 2007-12-14
Multi-string LED Back-light Controller
TM
®
STARTUP WAVEFORMS
Analog dimming. Full load
SWITCHING WAVEFORMS
Analog dimming. 50% Load
LED CUR R ENT WA VEFORMS
D = 50% at 17.5kHz, Digital dimming
LED CUR R ENT WA VEFORMS
D = 5% at 17.5kHz, Digital dimming
LED CUR R ENT WA VEFORMS
D = 1% at 200Hz, Digital dimming
LED CUR R ENT WA VEFORMS
USPS Operation; LED Current = 0.5mA
Vled
EN
+5V
6x LED
Current
VCS
6X LED
Current
Inductor
Current
PWM
Input
VCS
6X LED
Current
Inductor
Current
PWM
Input
Boost
FET
Drain
VCS
6X LED
Current
Inductor
Current
Inductor
Current
Boost
Output
LED
Current
Inductor
Current
Boost
Output
VCS
6X LED
Current



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