Datasheet

5
LT1182/LT1183/LT1184/LT1184F
TEMPERATURE (°C)
–75
LCD DUTY CYCLE (%)
87
91
95
93
89
85
81
77
125 150
LT1182 • G09
83
79
75
–25 0–50
25 50
75 100
175
TEMPERATURE (°C)
–75
CCFL DUTY CYCLE (%)
87
91
95
93
89
85
81
77
125 150
LT1182 • G07
83
79
75
–25 0–50
25 50
75 100
175
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
LT1184/LT1184F Supply Current
vs Temperature
LT1182/LT1183 Supply Current
vs Temperature
Shutdown Input Bias Current
vs Temperature
TEMPERATURE (°C)
0
SHUTDOWN INPUT BIAS CURRENT (µA)
2
4
6
5
3
1
–25 25 75 125
LT1182 G04
175–50–75 0 50 100 150
V
IN
= 5V
V
IN
= 3V
V
IN
= 30V
Shutdown Threshold Voltage
vs Temperature
TEMPERATURE (°C)
0.6
SHUTDOWN THRESHOLD VOLTAGE (V)
0.8
1.0
1.2
1.1
0.9
0.7
–25 25 75 125
LT1182 G05
175–50–75 0 50 100 150
TEMPERATURE (°C)
–75
CCFL FREQUENCY (kHz)
220
240
125
LT1182 • G06
200
180
160
–25
25
75
175
210
230
190
170
100
–50
0
50
150
V
IN
= 30V


V
IN
= 3V
CCFL Frequency vs Temperature
LCD Duty Cycle vs TemperatureLCD Frequency vs TemperatureCCFL Duty Cycle vs Temperature
Shutdown Current
vs Temperature
TEMPERATURE (°C)
–75
SUPPLY CURRENT (mA)
10
12
14
13
11
9
7
5
125
LT1182 G01
8
6
4
–25–50 0 50 100 150
25
75
175
V
IN
= 30V

V
IN
= 3V
TEMPERATURE (°C)
–75
SHUTDOWN CURRENT (µA)
60
8O
100
90
70
50
30
10
125
LT1182 G03
40
20
0
–25–50 0 50 100 150
25
75
175
V
IN
= 30V
V
IN
= 5V
V
IN
= 3V
TEMPERATURE (°C)
–75
SUPPLY CURRENT (mA)
6
8
10
9
7
5
3
1
125
LT1182 G02
4
2
0
–25–50 0 50 100 150
25
75
175
V
IN
= 30V
V
IN
= 3V
TEMPERATURE (°C)
–75
LCD FREQUENCY (kHz)
220
240
125
LT1182 • G08
200
180
160
–25
25
75
175
210
230
190
170
100
–50
0
50
150
V
IN
= 3V
V
IN
= 30V