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LT3743 Datasheet(PDF) 22 Page - Linear Technology

Part # LT3743
Description  High Current Synchronous Step-Down LED Driver with Three-State Control
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3743 Datasheet(HTML) 22 Page - Linear Technology

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LT3743
22
3743f
TYPICAL APPLICATIONS
6V to 36V, 2A LED Driver With Shunted Output
EN/UVLO
PWM
CTRL_SEL
EN/UVLO
INTVCC
CTRL_SEL
HG
VIN
CBOOT
VREF
CTRL_L
CTRL_H
CTRL_T
LT3743
RT
SYNC
SW
LG
GND
VCH
VCL
SENSE+
SENSE–
PWMGH
PWMGL
VCC_INT
100nF
L1
10μH
20μF
25mΩ
FB
10nF
34k
4.7nF
34k
4.7nF
82.5k
40.2k
M3
D1: LUMINUS CBT-40
L1: MSS1048-103MLB
M1, M2: Si7848BDP
M3: Si2312BDS
D1
M2
M1
3743 TA03
10k
2nF
RNTC
680k
8μF
VIN
6V TO 36V
VOUT
2A MAXIMUM
2.2μF
1μF
SS
RHOT
45.3k
CONTROL
INPUT
Shunted Output with CTRL_H
Equal to CTRL_L
6V to 36V, 2A LED Driver With Current Limited Shunted Output
Shunted Output with CTRL_L at GND
EN/UVLO
PWM
CTRL_SEL
EN/UVLO
INTVCC
CTRL_SEL
HG
VIN
CBOOT
VREF
CTRL_H
CTRL_L
CTRL_T
LT3743
RT
SYNC
SW
LG
GND
VCH
VCL
SENSE+
SENSE–
PWMGH
PWMGL
VCC_INT
100nF
L1
10μH
20μF
25mΩ
FB
10nF
34k
4.7nF
34k
4.7nF
82.5k
40.2k
D1
3743 TA04
10k
2nF
RNTC
680k
8μF
M1
M2
M3
VIN
6V TO 36V
VOUT
2A MAXIMUM
2.2μF
1μF
SS
RHOT
45.3k
CONTROL
INPUT
D1: LUMINUS CBT-40
L1: IHLP4040DZE10R0M01
M1, M2: Si7848BDP
M3: Si2312BDS
SW
2V/DIV
IL
2A/DIV
CTRL_SEL
5V/DIV
ILED
1A/DIV
20μs/DIV
3743 TA03b
SW
10V/DIV
IL
2A/DIV
CTRL_SEL
5V/DIV
ILED
1A/DIV
20μs/DIV
3743 TA04b



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