LT3743IUFD#PBF Linear Technology, LT3743IUFD#PBF Datasheet - Page 7

• Manufacturer Part Number: LT3743IUFD#PBF
• Description: IC LED DRVR HP CONST CURR 28QFN
• Manufacturer: Linear Technology
• Type: High Power, Constant Currentr

Specifications of LT3743IUFD#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-QFN
• 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
• Operating Temperature Range: -40°C To +125°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -

TYPICAL PERFORMANCE CHARACTERISTICS
150
140
120
110
100
300
240
120
130
180
60
5
4
2
1
0
0
3
–50
–50
–50
PWM Driver R
Non-Overlap PWM Signal Delay
Minimum Off-Time
PWMGL TO PWMGH
–15
–15
–15
PWMGH TO PWMGL
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
20
DS(0N)
NMOS
PMOS
HG
LG
55
55
55
90
90
90
3743 G19
3743 G22
3743 G25
125
125
125
150
120
–1
–2
–3
60
30
90
1
5
4
3
2
0
3
2
1
0
0
–50
–50
0
HG Driver R
Non-Overlap Time
Regulation Accuracy
CTRL_H = 1.5V, V
–15
–15
2.5
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
DS(ON)
20
20
LG TO HG
HG TO LG
PMOS
NMOS
5.0
IN
55
55
= 12V
7.5
90
90
3743 G20
3743 G26
3743 G23
125
125
10
150
120
–2
–4
–6
60
30
90
1
5
4
3
2
0
6
4
2
0
0
–50
–50
LG Driver R
Minimum On-Time
Regulation Accuracy
CTRL_H = 0.75V, V
0
–15
–15
2.5
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
DS(ON)
20
20
PMOS
NMOS
5.0
HG
LG
IN
55
55
LT3743
= 12V
7.5
90
90
3743 G21
3743 G27
3743 G24
3743fb
7
125
125
10