LT3791-1 Просмотр технического описания (PDF) - Linear Technology
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LT3791-1 Datasheet PDF : 26 Pages
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LT3791-1
Typical Performance Characteristics TA = 25°C, unless otherwise noted.
V(ISP-ISN) Threshold vs VFB
120
100
80
60
40
20
0
1.17 1.18 1.19 1.20 1.21
VFB (V)
1.22 1.23
37911 G10
V(IVINP-IVINN) Threshold
vs Temperature
56
54
52
VIVINP = 60V
50
VIVINP = 3V
48
46
44
42
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
37911 G13
V(IVINP-IVINN) Threshold vs VFB
60
50
40
30
20
10
0
1.17 1.18 1.19 1.20 1.21
VFB (V)
1.22 1.23
37911 G16
ISMON Voltage vs Temperature
1.04
VIN = 12V
1.03 V(ISP-ISN) = 100mV
1.02
1.01
1.00
0.99
0.98
0.97
0.96
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
37911 G11
V(IVINP-IVINN) Threshold
vs VIVINP
52.0
51.5
51.0
50.5
50.0
49.5
49.0
48.5
48.0
0
10 20 30 40
VIVINP (V)
50 60
37911 G14
FB Regulation Voltage
vs Temperature
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
–50 –25
VIN = 60V
VIN = 12V
VIN = 4.7V
0 25 50 75 100 125 150
TEMPERATURE (°C)
37911 G17
ISMON Voltage vs V(ISP-ISN)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0 10 20 30 40 50 60 70 80 90 100
V(ISP-ISN) (mV)
37911 G12
IVINMON Voltage vs Temperature
1.04
VIVINP = 12V
1.03 V(IVINP-VINN) = 50mV
1.02
1.01
1.00
0.99
0.98
0.97
0.96
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
37911 G15
SHORT Threshold
vs Temperature
0.500
0.475
0.450
0.425
RISING
0.400
0.375
FALLING
0.350
0.325
0.300
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
37911 G18
37911fa
6
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