LT1182 LINER [Linear Technology], LT1182 Datasheet - Page 6

• Manufacturer Part Number: LT1182
• Description: CCFL/LCD Contrast Switching Regulators
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
LT1182/LT1183/LT1184/LT1184F
6
0.53
0.52
0.51
0.50
0.49
0.48
0.47
0.46
0.45
0.44
0.43
0.42
0.41
0.40
0.39
0.38
5.10
5.05
5.00
4.95
4.90
4.85
4.80
103
102
101
100
99
98
97
96
95
–75
–75
–75
I
vs Temperature
CCFL V
Ratio vs Temperature
vs Temperature
CCFL
CCFL V
I
– 50
– 50
CCFL
– 50
I(DIO) = 1mA
Summing Voltage
–25
–25
–25
Programming Current
C
I
CCFL
I
V
C
to DIO Current Servo
CCFL
TEMPERATURE ( C)
IN
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
Source Current for
0
I(DIO) = 10mA
= 30V
= 50 A
I
= 100 A
25
CCFL
25
25
V
50
50
I(DIO) = 5mA
= 10 A
50
IN
= 3V
75
75
75
100
100
W
100
125
125
125
V
IN
LT1182 • G10
LT1182 • G13
LT1182 • G16
150
U
150
= 5V
150
175
175
175
0.30
0.25
0.20
0.15
0.10
0.05
–10
1.2
1.0
0.8
0.6
0.4
0.2
– 6
–4
–5
–8
–9
–1
–2
–3
–7
5
4
3
2
1
0
0
0
–75
–75
0
I
Load Regulation
Positive DIO Voltage
vs Temperature
CCFL V
vs Temperature
CCFL
– 50
–50
20
I
CCFL
Summing Voltage
–25
–25
40
C
PROGRAMMING CURRENT ( A)
I(DIO) = 1mA
Low Clamp Voltage
60
TEMPERATURE ( C)
0
TEMPERATURE ( C)
0
T = 125 C
I(DIO) = 10mA
80
25
25
T = –55 C
100
50
50
T = 25 C
120
75
75
140
100
100
I(DIO) = 5mA
160
125
125
LT1182 • G11
LT1182 • G14
LT1182 • G17
150
180
150
200
175
175
2.4
2.1
1.9
1.7
–3
1.6
1.4
1.2
0.8
0.6
0.4
0.2
2.3
2.2
2.0
1.8
10
–2
1.0
–1
4
9
8
7
6
5
3
2
1
0
0
–75
–75
–75
CCFL V
vs Temperature
CCFL V
vs Temperature
Negative DIO Voltage
vs Temperature
– 50
– 50
–50
–25 0
–25
–25 0
C
C
Offset Sink Current
High Clamp Voltage
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
CCFL V
0
CCFL V
25 50 75 100
I(DIO) = 10mA
25
25
I(DIO) = 5mA
I(DIO) = 1mA
CCFL V
C
50
50
= 1.0V
C
= 0.5V
75
C
75
= 1.5V
100
100
125 150
125
125
LT1182 • G18
LT1182 • G15
LT1182 • G12
150
150 175
175
175