Datasheet

LT3743
28
3743fd
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
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www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2009
LT 1112 REV D • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT3755/LT3755-1 High Side 40V, 1MHz LED Controller with True Color
3000:1 PWM Dimming
V
IN
: 4.5V to 40V, V
OUT(MAX)
= 60V, Dimming = 3000:1 True Color PWM™,
I
SD
< 1µA, 3mm × 3mm QFN16, MSOP16E
LT3756/LT3756-1 High Side 100V, 1MHz LED Controller with True Color
3000:1 PWM Dimming
V
IN
: 6V to 100V, V
OUT(MAX)
= 100V, Dimming = 3000:1 True Color PWM,
I
SD
< 1µA, 3mm × 3mm QFN16, MSOP16E
LTC3783 High Side 36V, 1MHz LED Controller with True Color
3000:1 PWM Dimming
V
IN
: 3V to 36V, V
OUT(MAX)
= 40V, Dimming = 3000:1 True Color PWM,
I
SD
< 20µA, 4mm × 5mm DFN16, TSSOP16E
LT3517 1.3A, 2.5MHz High Current LED Driver with 3000:1
Dimming
V
IN
: 3V to 30V, Dimming = 3000:1 True Color PWM, I
SD
< 1µA,
4mm × 4mm QFN16
LT3518 2.3A, 2.5MHz High
Current LED Driver with 3000:1
Dimming
V
IN
: 3V to 30V, Dimming = 3000:1 True Color PWM, I
SD
< 1µA,
4mm × 4mm QFN16
LT3496 Triple Output 750mA, 2.1MHz High Current LED Driver
with 3000:1 Dimming
V
IN
: 3V to 30V, V
OUT(MAX)
= 40V, Dimming = 3000:1 True Color PWM,
I
SD
< 1µA, 4mm × 5mm QFN28
LT3474/LT3474-1 36V, 1A (I
LED
), 2MHz Step-Down LED Driver V
IN
: 4V to 36V, V
OUT(MAX)
= 13.5V, Dimming = 400:1 True Color PWM,
I
SD
< 1µA, TSSOP16E
LT3475/LT3475-1 Dual 1.5A (I
LED
), 36V Step-Down LED Driver V
IN
: 4V to 36V, V
OUT(MAX)
= 13.5V, Dimming = 3000:1 True Color PWM,
I
SD
< 1µA, TSSOP20E
LT3476 Quad Output 1.5A, 2MHz High Current LED Driver with
1000:1 Dimming
V
IN
: 2.8V to 16V, V
OUT(MAX)
= 36V, Dimming = 1000:1 True Color PWM,
I
SD
< 10µA, 5mm × 7mm QFN10
LT3478/LT3478-1 4.5A, 2MHz High Current LED Driver with 3000:1
Dimming
V
IN
: 2.8V to 36V, V
OUT(MAX)
= 40V, Dimming = 1000:1 True Color PWM,
I
SD
< 10µA, 5mm × 7mm QFN10
12V, 40A Pulsed LED Driver
EN/UVLO
PWM
CTRL_SEL
EN/UVLO
PWM
CTRL_SEL
HG
V
IN
CBOOT
V
REF
CTRL_L
CTRL_H
CTRL_T
LT3743
RT
SYNC
SW
LG
GND
V
CH
V
CL
SENSE
+
SENSE
–
PWMGH
PWMGL
V
CC_INT
220nF
L1
1µH
22µF
33nF
M2
×2
M3
M4
D1
M1
×2
C1
330µF
×3
1.25mΩ
FB
1µF
51k
5.6nF
51k
5.6nF
150k
50k
50k
C3
330µF
×3
140k
3743 TA08
20k
1µF
C2
330µF
×3
1µF
R
NTC
10k
220µF
V
IN
12V
OUTPUT
40A MAXIMUM
220µF
4.7µF
×8
1µF
1µF
1nF
SS
10Ω 10Ω
R
HOT
499Ω
L1: 1HLP5050FDER1R0M01
M1, M2: RJK0330DPB
M3, M4: Si7234DP
C1, C2, C3: PTPR33OM9L
CTRL_SEL
5V/DIV
I
LED
20A/DIV
SW
10V/DIV
20µs/DIV
3743 TA08b
V
IN
= 12V
4A to 40A LED Current Step