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LT3743 Datasheet(PDF) 21 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) 21 Page - Linear Technology

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LT3743
21
3743f
TYPICAL APPLICATIONS
12V, 20A LED Driver
EN/UVLO
PWM
CTRL_SEL
EN/UVLO
PWM
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
1.0μH
20μF
1mF
2.5mΩ
FB
10nF
34k
4.7nF
34k
D1: LUMINUS PT120
L1: IHLP4040DZER1R0M01
M1: RJK0365DPA
M2: RJK0346DPA
M3, M4: Si7236DP
4.7nF
82.5k
40k
40k
1mF
D1
40.2k
3743 TA02
10k
1μF
2nF
RNTC
680k
200μF
M1
M2
M3
M4
VIN
12V
VOUT
20A MAXIMUM
1μF
1mF
SS
RHOT
45.2k
CTRL_SEL DIMMING DUTY CYCLE (%)
0
90
92
94
80
3743 TA02b
88
86
20
40
60
100
84
82
80
VIN = 12V
GREEN LED
Efficiency (Stepping from 2A to 20A)



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