LT1184F_15 Datasheet, PDF (5/24 Pages) Linear Technology – CCFL/LCD Contrast Switching Regulators

LT1182/LT1183/LT1184/LT1184F
TYPICAL PERFORMANCE CHARACTERISTICS
LT1182/LT1183 Supply Current
vs Temperature
14
13
12
11
10
V_IN = 30V
9
V_IN = 3V
8
7
6
5
4
–75 – 50 – 25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 G01
Shutdown Input Bias Current
vs Temperature
6
5
4
V_IN = 30V
V_IN = 5V
3
2
V_IN = 3V
1
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 G04
CCFL Duty Cycle vs Temperature
95
93
91
89
87
85
83
81
79
77
75
–75 – 50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 • G07
LT1184/LT1184F Supply Current
vs Temperature
10
9
8
7
6
V_IN = 30V
5
V_IN = 3V
4
3
2
1
0
–75 – 50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 G02
Shutdown Threshold Voltage
vs Temperature
1.2
1.1
1.0
0.9
0.8
0.7
0.6
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 G05
LCD Frequency vs Temperature
240
230
220
210 _{VIN = 30V}
200
V_IN = 3V
190
180
170
160
–75 – 50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 • G08
Shutdown Current
vs Temperature
100
90
8O
V_IN = 30V
70
60
50
40
V_IN = 5V
30
V_IN = 3V
20
10
0
–75 –50 – 25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 G03
CCFL Frequency vs Temperature
240
230
220
210
V_IN = 30V
200
V_IN = 3V
190
180
170
160
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 • G06
LCD Duty Cycle vs Temperature
95
93
91
89
87
85
83
81
79
77
75
–75 – 50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1182 • G09
5