LT3799
TYPICAL PERFORMANCE CHARACTERISTICS
CT Pin Charge Current
vs Temperature
12
10
CT CHARGE CURRENT (µA)
8
6
4
2
0
–50
200
CT Pin Discharge Current
vs Temperature
0.4
CT Pin Low Threshold
vs Temperature
CT DISCHARGE CURRENT (nA)
190
CT PIN VOLTAGE (V)
–25
50
25
0
75
TEMPERATURE (°C)
100
125
3799 G10
0.3
180
0.2
170
160
0.1
–25
50
25
0
75
TEMPERATURE (°C)
100
125
3799 G09
150
–50
0
–50
–25
50
25
0
75
TEMPERATURE (°C)
100
125
3799 G11
CT Pin High Threshold
vs Temperature
1.5
10.6
10.4
10.2
INTV
CC
(V)
10.0
INTV
CC
vs Temperature
10.25
10.20
NO LOAD
INTV
CC
(V)
10.15
10.10
10.05
10.00
9.95
INTV
CC
vs V
IN
1.4
CT PIN VOLTAGE (V)
PART ON
1.3
1.2
10mA LOAD
9.8
1.1
9.6
9.4
–50
PART OFF
10 12 14 16 18 20 22 24 26 28 30 34
V
IN
(V)
1.0
–50
–25
50
25
0
75
TEMPERATURE (°C)
100
125
3799 G12
–25
50
0
25
75
TEMPERATURE (°C)
100
125
3799 G13
3799 G14
26.00
25.75
V
IN
SHUNT VOLTAGE (V)
25.50
25.25
25.00
24.75
V
IN
Shunt Voltage vs Temperature
30
25
SHUNT CURRENT (mA)
20
15
10
5
Maximum Shunt Current
vs Temperature
1.2
1.0
0.8
I
LED
(A)
LED Current vs TRAIC Angle
PAGE 17 SCHEMATIC
220V APPLICATION
0.6
0.4
0.2
0
120V APPLICATION
I
SHUNT
= 10mA
24.50
–50
–25
50
25
0
75
TEMPERATURE (°C)
100
125
3799 G15
0
–50
–25
50
25
0
75
TEMPERATURE (°C)
100
125
3799 G16
0
30
120
90
60
TRIAC ANGLE (°C)
150
180
3799 G17
3799p
5
LINER [ LINEAR TECHNOLOGY ]
