LT3743
TYPICAL PERFORMANCE CHARACTERISTICS
5.0
4.5
4.0
3.5
Internal UVLO
3.00
2.75
2.50
2.25
2.00
1.75
CBOOT-SW UVLO Voltage
4.00
3.75
3.50
3.25
3.00
2.75
V CC_INT UVLO
3.0
–50
–15
20
55
90
125
1.50
–50
–15
20 55
90
125
2.50
–50
–15
20 55
90
125
6.0
5.6
5.2
4.8
4.4
TEMPERATURE (°C)
V CC_INT Load Reg at 12V
3743 G10
150
100
50
0
–50
–100
TEMPERATURE (°C)
Regulated Current vs V FB
3743 G11
1.5
1.4
1.3
1.2
1.1
TEMPERATURE (°C)
Open-LED Threshold
3743 G12
4.0
0
10
20
30
40
50
60
–150
800
900
1000 1100
1200
1300
1.0
–50
–15
20
55
90
125
I LOAD (mA)
Open-LED Timeout
3743 G13
V FB (mV)
Regulated Sense Voltage
3743 G14
TEMPERATURE (°C)
Common Mode Lockout
3743 G15
19
17
15
60
50
40
2.5
2.0
1.5
MEASURED V IN – V OUT
V IN = 6V
V IN = 36V
30
13
20
1.0
11
10
0.5
9
–50
–15
20
55
90
125
0
0
0.5
1.0
1.5
2.0
0
–50
–15
20
55
90
125
TEMPERATURE (°C)
3743 G16
V CTRL (V)
3743 G17
TEMPERATURE (°C)
3743 G18
3743fd
6
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