LT3799I(RevA) 查看數據表（PDF） - Linear Technology
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LT3799I Datasheet PDF : 20 Pages
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Typical Performance Characteristics
LT3799
CT Pin Charge Current
vs Temperature
12
10
8
6
4
2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3799 G09
CT Pin High Threshold
vs Temperature
1.5
1.4
1.3
1.2
1.1
1.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3799 G12
VIN Shunt Voltage vs Temperature
26.00
25.75
25.50
25.25
25.00
ISHUNT = 10mA
24.75
24.50
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3799 G15
CT Pin Discharge Current
vs Temperature
200
190
180
170
160
150
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3799 G10
CT Pin Low Threshold
vs Temperature
0.4
0.3
0.2
0.1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3799 G11
INTVCC vs Temperature
10.6
10.4
10.2
NO LOAD
10.0
10mA LOAD
9.8
9.6
9.4
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3799 G13
INTVCC vs VIN
10.25
10.20
10.15
PART ON
10.10
10.05
10.00
PART OFF
9.95
10 12 14 16 18 20 22 24 26 28 30 34
VIN (V)
3799 G14
Maximum Shunt Current
vs Temperature
30
25
20
15
10
5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3799 G16
LED Current vs TRIAC Angle
1.2
PAGE 17 SCHEMATIC
1.0
0.8
220V APPLICATION
0.6
120V APPLICATION
0.4
0.2
0
0 30 60 90 120 150 180
TRIAC ANGLE (DEGREES)
3799 G17
3799fa
5
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