LT3596
TYPICAL APPLICATION
48V 1MHz Step-Down 8W, 100mA LED Driver (Eight White LEDs per Channel)
V IN
48V
10μF
270k
V IN
BIAS
4.7μF
5V
BIAS
SYNC
91k
EN/UVLO BOOST
SW
LT3596
SYNC DA
100nF 100μH
100k
4.7μF
V OUT
10,000:1 PWM Dimming at 100Hz
PWM1
PWM2
PWM3
CTRL1
CTRL2
CTRL3
BIAS
33.2k
RT
PWM1
PWM2
PWM3
CTRL1
CTRL2
CTRL3
GND
FB
V OUT
3.65k
28V
PER LED
STRING
PWM
2V/DIV
I LED
50mA/DIV
FAULT
100k
FAULT
LED1
LED2
LED3
200ns/DIV
3596 TA01b
V REF
3696 TA01a
90.9k
10k
TSET
CTRLM
I SET1
I SET2
I SET3
49.9k
100k
20k
20k
20k
RELATED PARTS
PART NUMBER
LT3476
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LT3599
LT3754
DESCRIPTION
Quad Output 1.5A, 2MHz High Current LED Driver with
1000:1 Dimming
45V, 2.1MHz 3-Channel (I LED = 1A) Full-Featured LED
Driver
48V, 850kHz 50mA Buck Mode LED Driver
45V, 2MHz 16-Channel Full-Featured LED Driver
44V, 1.5A, 2.5MHz Boost 6-Channel LED Driver
2A Boost Converter with Internal 4-String 150mA LED
Ballaster
16-Channel × 50mA LED Driver with 60V Boost Controller
and PWM Dimming
COMMENTS
V IN : 2.8V to 16V, V OUT(MAX) = 36V, True Color PWM Dimming = 1000:1,
I SD < 10μA, 5mm × 7mm QFN-10 Package
V IN : 3V to 30V (40V MAX ), V OUT(MAX ) = 45V, True Color PWM
Dimming = 3000:1, I SD < 1μA, 4mm × 3mm QFN-28 Package
V IN : 4.5V to 55V, True Color PWM Dimming = 200:1, I SD < 15μA,
2mm × 2mm DFN-6 and SC70 Packages
V IN : 4.5V to 55V, V OUT(MAX) = 45V True Color PWM Dimming = 5000:1,
I SD < 1μA, 5mm × 9mm QFN-56 Package
V IN : 3V to 30V (40V MAX ), V OUT(MAX) = 44V, True Color PWM
Dimming = 1000:1, I SD < 1μA, 4mm × 4mm QFN-24 Package
V IN : 3V to 30V, V OUT(MAX) = 44V, True Color PWM Dimming = 1000:1,
I SD < 1μA, 5mm × 5mm QFN-32 and TSSOP-28 Packages
V IN : 6V to 40V, V OUT(MAX) = 45V, True Color PWM Dimming = 3000:1,
I SD < 1μA, 5mm × 5mm QFN-32 Package
3596fa
1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900 ● FAX:(408)434-0507    www.linear.com ●
   Linear Technology Corporation
LT 0910 ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2010
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