LT1182 LINER [Linear Technology], LT1182 Datasheet - Page 7

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

TYPICAL PERFORMANCE CHARACTERISTICS
150
140
130
120
100
110
1.3
1.2
1.1
1.0
0.9
0.8
0.6
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.7
70
90
80
60
50
–75
–75
–75
CCFL V
Voltage vs Temperature
LCD V
Voltage vs Temperature
CCFL High-Side Sense Supply
Current vs Temperature
– 50
– 50
– 50
–25 0
–25 0
C
–25 0
C
Switching Threshold
Switching Threshold
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25 50 75 100
25
50
50
75
75
100
100
W
125
125
125 150
LT1182 • G22
LT1182 • G25
150 175
150 175
LT1182 • G19
U
175
1.060
1.040
1.020
1.000
0.980
0.960
0.940
0.06
1.00
0.09
0.08
0.07
0.05
0.04
0.03
0.02
0.10
7.5
7.4
7.3
7.2
7.0
6.8
6.7
6.6
7.1
6.9
6.5
0
–75
–75
–75
LCD V
vs Temperature
CCFL High-Side Sense Null
Current vs Temperature
Bulb Protect Servo Voltage
vs Temperature
– 50
– 50
–50
–25
C
–25 0
–25
Low Clamp Voltage
I
CCFL
TEMPERATURE ( C)
TEMPERATURE ( C)
0
I
TEMPERATURE ( C)
CCFL
I
CCFL
0
25
= 100 A
25 50 75 100
= 50 A
= 10 A
50
25
LT1182/LT1183/LT1184/LT1184F
75
50
100
75
125
125 150
100 125
LT1182 • G20
LT1182 • G23
LT1182 • G26
150
175
175
0.160
0.140
0.120
0.100
0.080
0.060
0.040
0.020
0.000
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
10
8
6
4
2
0
–75
–75
–75
LCD V
vs Temperature
CCFL High-Side Sense Null Current
Line Regulation vs Temperature
Bulb Input Bias Current
vs Temperature
– 50
– 50
– 50
–25 0
–25
–25 0
C
High Clamp Voltage
TEMPERATURE ( C)
0
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
25 50 75 100
50
50
75
75
100
100
125
125
125 150
LT1182 • G21
LT1182 • G24
LT1182 • G27
150 175
150
7
175
175