LT3743IFE#PBF Linear Technology, LT3743IFE#PBF Datasheet - Page 24

• Manufacturer Part Number: LT3743IFE#PBF
• Description: IC LED DVR HP CONST CURR 28TSSOP
• Manufacturer: Linear Technology
• Type: High Power, Constant Currentr

Specifications of LT3743IFE#PBF

• Topology: High Side, Low Side, PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: General Purpose
• Type - Secondary: RGB
• Frequency: 200kHz ~ 1MHz
• Voltage - Supply: 6 V ~ 36 V
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Internal Switch(s): Yes
• Efficiency: 92%
• Led Driver Application: Lighting
• No. Of Outputs: 1
• Output Current: 20A
• Output Voltage: 40V
• Input Voltage: 6V To 36V
• Dimming Control Type: PWM
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -

LT3743
TYPICAL APPLICATIONS
24
2.2nF
R
499Ω
R
10k
HOT
NTC
82.5k
EN/UVLO
10nF
V
CC_INT
PWM
20k
60.4k
EN/UVLO
PWM
CTRL_SEL
RT
SYNC
V
CTRL_H
CTRL_L
CTRL_T
SS
REF
VCL
LT3743
24V, 20A 3-LED Driver
PWMGH
PWMGL
SENSE
SENSE
V
CBOOT
VCH
CC_INT
GND
SW
V
HG
24.3k
LG
FB
IN
+
–
4.7nF
100nF
20μF
1μF
L1: 1HLP5050FDER1R2M01
M1: Si7848BDP
M2, M3: RJK0330DPB
M1
M2
1.2μH
L1
82μF
10Ω
2.5mΩ
33nF
V
24V
IN
10Ω
LEDs
RED
470μF
20A MAXIMUM
OUTPUT
M3
316k
20k
3743 TA07
100
95
90
85
80
75
70
65
60
0
20
DUTY CYCLE (%)
Effi ciency
40
60
V
3 RED LEDs
IN
80
= 24V
3743 TA07b
3743fb
100