LTC1698
U W
TYPICAL PERFOR A CE CHARACTERISTICS
VAUX vs Temperature
VAUX vs Line Voltage
VAUX vs Load Current
3.465
3.424
3.383
3.341
3.300
3.259
3.218
3.176
3.135
3.465
3.424
3.383
3.341
3.300
3.259
3.218
3.176
3.135
3.465
3.424
3.383
3.341
3.300
3.259
3.218
3.176
3.135
V
I
= 8V
LOAD
V
I
= 8V
LOAD
V
A
= 8V
DD
DD
DD
= 0mA
= 0mA
T
= 25°C
10 11
(V)
5
6
7
8
9
12 13 14
50 75
TEMPERATURE (°C)
5
6
–50 –25
0
25
100 125 150
0
1
2
3
4
7
8
9
10
V
DD
LOAD CURRENT (mA)
1698 G11
1698 G10
1698 G12
VAUX Short-Circuit Current
vs Temperature
VAUX Short-Circuit Current
vs VDD
Opto Driver Load Regulation
0
–10
–20
0
3.030
3.024
3.018
3.012
3.006
3.000
2.994
2.988
2.982
2.976
2.970
1.0
V
= 8V
T
= 25°C
V
A
= 8V
DD
A
DD
0.8
T
= 25°C
–10
0.6
0.4
–20
–30
–40
–50
0.2
0
–30
–40
–50
–0.2
–0.4
–0.6
–0.8
–1.0
50
TEMPERATURE (°C)
9
–50 –25
0
25
75 100 125 150
5
6
7
8
10 11 12 13 14
(V)
0
1
2
3
4
5
6
7
8
9
10
V
LOAD CURRENT (mA)
DD
1698 G13
1698 G14
1698 G15
Maximum OPTO Driver Output
Voltage vs Load Current
Maximum OPTO Driver Output
Voltage vs Temperature
Opto Driver Short-Circuit Current
vs Temperature
8
6
4
2
8
6
4
2
0
–10
–15
–20
–25
–30
–35
–40
–45
–50
V
= 10V
V
V
= 8V
V
= 10V
DD
DD
OPTODRV
DD
= 1.233V
V
= 8V
V
= 8V
= 7V
DD
DD
V
V
= 7V
= 6V
= 5V
DD
DD
DD
DD
V
V
V
V
= 6V
= 5V
DD
DD
V
I
= 0V
OPTODRV
T
= 25°C
COMP
COMP
A
= –10mA
V
= 0V
0
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
50 75
25
TEMPERATURE (°C)
–50 –25
0
100 125 150
0
1
2
3
4
5
6
7
8
9
10
LOAD CURRENT (mA)
1698 G23
1698 G16
1698 G22
1698f
5
Linear [ Linear ]
