LT3519EMS-1 데이터 시트보기 (PDF) - Linear Technology
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LT3519EMS-1 Datasheet PDF : 20 Pages
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LT3519/LT3519-1/LT3519-2
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted)
FB Regulation Voltage
vs Temperature
1.25
VIN = 12V
1.24
1.23
1.22
1.21
1.20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3519 G10
FB OPENLED Threshold
vs Temperature
100
VIN = 12V
90
80
70
60
50
40
30
20
10
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3519 G11
SHDN/UVLO Threshold
vs Temperature
1.30
VIN = 12V
1.28
SHDN/UVLO RISING
1.26
1.24
SHDN/UVLO FALLING
1.22
1.20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3519 G12
Switch Saturation Voltage
(VCESAT)
500
450
400
350
300
250
200
150
100
50
0
0
200 400 600 800 1000
SWITCH CURRENT (mA)
3519 G13
Schottky Leakage Current
vs Temperature
10
VR = 24V
9
8
7
6
5
4
3
2
1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3519 G14
Schottky Forward Voltage Drop
900
800
700
600
500
400
300
200
100
0
0
200 400 600 800 1000
SCHOTTKY FORWARD VOLTAGE DROP (mV)
3519 G15
Oscillator Frequency
vs Temperature (LT3519-1)
1.2
Oscillator Frequency
vs Temperature (LT3519-2)
2.5
1.1
2.4
2.3
1.0
2.2
0.9
2.1
0.8
2.0
0.7
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3519 G16
1.9
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3519 G17
3519fa
5
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