LT1339ISW 查看數據表（PDF） - Linear Technology
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LT1339ISW Datasheet PDF : 20 Pages
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LT1339
TYPICAL PERFORMANCE CHARACTERISTICS
UVLO Thresholds vs Temperature
10.00
9.75
9.50
RISING
9.25
9.00
FALLING
8.75
8.50
8.25
8.00
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1339 G18
Sense Amplifier Input Bias
Current (Source) vs Temperature
1200
1100
VCMSENSE = 0V
1000
900
800
700
600
500
400
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1339 G19
Sense Amplifier Input Bias
Current (Sink) vs Temperature
60
VCMSENSE = 10V
55
50
45
40
35
30
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1339 G20
RUN/SHDN Input Current
vs Pin Voltage
800
FULL OPERATING
700 TEMPERATURE
RANGE
600
500
UPPER
TYPICAL
400
LIMIT
RUN/SHDN Input Current
vs Pin Voltage
600
FULL OPERATING
TEMPERATURE
RANGE
450
UPPER
LIMIT
TYPICAL
300
300
200
LOWER
150
LIMIT
100
LOWER
LIMIT
0
0
0.5 1.0 (1.25) 1.5 2.0 2.5
RUN/SHDN INPUT VOLTAGE (V)
1339 G22
0
02
4
6
8 10 12
RUN/SHDN SUPPLY VOLTAGE (V)
1339 G23
Maximum Duty Cycle vs RCT
100
90
IDISCHG = 2.75mA
80
70
60
50
40
IDISCHG = 2.1mA
30
20
FULL OPERATING
10
TEMPERATURE
RANGE
0
1 2 4 6 10 20 40 60 100
RCT (kΩ)
1339 G21
Operating Frequency (Normalized)
vs Temperature
1.01
1.00
0.99
0.98
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1339 G24
6
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