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LT3745
TYPICAL APPLICATION
V IN
42V TO 55V
V IN
CAP
0.47μF
16V
4.7μF
100V
..
..
..
..
..
..
..
EN
V CC
3V TO 5.5V
10μF
10V
46.4k
60.4k
2.048MHz CLOCK
100k
10nF
32.4k
EN/UVLO
V CC
SYNC
RT
LT3745
SS
I SET
T SET
PWMCK
GATE
GND
ISP
ISN
FB
LED00
LED01
LED02
.
LED13
M1 L1
47μH
D1
25m
267k
10k
C1
2 × 47μF
..
.
33.4V MAXIMUM OUTPUT VOLTAGE
.. .. .. ..
. . . .
..
.
LED14
LED15
TTL/CMOS
SCKI
SDI
LDI
SCKO
SDO
LDO
TTL/CMOS
M1: VISHAY Si9407BDY
D1: DIODES DFLS160
L1: WüRTH ELECTRONIK 744771147
C1: SANYO 35SVPD47M
3745 TA03
Figure 8. 16-Channel LED Driver, 1MHz Buck, 10 LEDs, 25mA to 75mA per Channel, 500Hz 12-Bit Dimming
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
LT3746
LT3476
LT3486
32-Channel 20mA LED Driver with Buck Controller
Quad Output 1.5A, 2MHz High Current LED Driver with
1,000:1 Dimming
Dual 1.3A , 2MHz High Current LED Driver
V IN : 6V to 55V, V OUT(MAX) = 13V, 6-Bit Dot Correction Current
Adjustment, 12-Bit Grayscale Dimming, 5mm × 9mm QFN Package
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 : 2.5V to 24V, V OUT(MAX) = 36V, True Color PWM Dimming = 1000:1,
I SD < 1μA, 5mm × 3mm DFN-16 TSSOP-16E Package
LT3496
Triple Output 750mA, 2.1 MHz High Current LED Driver with V IN : 3V to 30V, V OUT(MAX) = 60V, True Color PWM Dimming = 3000:1,
3,000:1 Dimming I SD < 1μA, 4mm × 5mm QFN-28 Package
Linear Technology Corporation
(408) 432-1900 ● FAX : (408) 434-0507 www.linear.com
LT3595
LT3598
LT3599
LT3754
LT3756/-1
LT3760
28
45V, 2.5MHz 16-Channel Full Featured LED Driver
44V, 1.5A, 2.5MHz Boost 6-Channel 30mA LED Driver
44V, 2A, 2.5MHz Boost 4-Channel 120mA LED Driver
60V, 1MHz Boost 16-Channel 50mA LED Driver with True
Color 3,000:1 PWM Dimming and 2.8% Current Matching
High Side 100V, 1MHz LED Controller with True Color
3,000:1 PWM Dimming
60V, 1MHz Boost 8-Channel 100mA LED Driver with True
Color 3,000:1 PWM Dimming and 2.8% Current Matching
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
V IN : 4.5V to 45V, V OUT(MAX) = 45V, True Color PWM Dimming = 5000:1,
I SD < 1μA, 5mm × 9mm QFN-56 Package
V IN : 3V to 40V, V OUT(MAX) = 44V, True Color PWM Dimming = 1000:1,
I SD < 1μA, 4mm × 4mm QFN-24 Package
V IN : 3V to 40V, V OUT(MAX) = 44V, True Color PWM Dimming = 1000:1,
I SD < 1μA, 4mm × 4mm QFN-24 Package
V IN : 4.5V to 40V, V OUT(MAX) = 60V, True Color PWM Dimming = 3000:1,
I SD < 1μA, 5mm × 5mm QFN-32 Package
V IN : 6V to 100V, V OUT(MAX) = 100V, True Color PWM Dimming = 3000:1,
I SD < 1μA, 3mm × 3mm QFN-16 MSOP-16E Package
V IN : 4.5V to 40V, V OUT(MAX) = 60V, True Color PWM Dimming = 3000:1,
I SD < 1μA, TSSOP-28E Package
3745f
LT 0811 ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2011
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