LT3798EMSE 查看數據表（PDF） - Linear Technology
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LT3798EMSE Datasheet PDF : 20 Pages
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LT3798
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
INTVCC vs Temperature
10.5
NO LOAD
10mA LOAD
25mA LOAD
10.25
10
9.75
9.5
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3798 G08
INTVCC vs VIN
10.2
10
9.8
9.6
9.4
9.2
9
5 10 15 20 25 30 35 40
VIN (V)
3798 G09
VIN Shunt Voltage vs Temperature
42
ISHUNT = 1mA
41.5
41
40.5
40
39.5
39
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3798 G10
Maximum Shunt Current
vs Temperature
10
9
8
7
6
5
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3798 G11
Leakage Inductance Blanking Time
vs SENSE Current Limit Threshold
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100 120
SENSE CURRENT LIMIT THRESHOLD (mV)
3798 G12
VOUT vs Temperature
25
PAGE 17 SCHEMATIC:
UNIVERSAL
24.5
VAC = 120V
24
VAC = 220V
23.5
23
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3798 G012a
Output Voltage
vs Input Voltage
24.6
PAGE 17 SCHEMATIC:
UNIVERSAL
24.4
24.2
24
23.8
Output Current
vs Input Voltage
1.10
PAGE 17 SCHEMATIC:
UNIVERSAL
1.05
VOUT = 22V
1.00
0.95
23.6
90 110 130 150 170 190 210 230 250 270
VIN (VAC)
3798 G13
0.90
90 110 130 150 170 190 210 230 250 270
VIN (VAC)
3798 G14
3798fa
5
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