LT1680 Просмотр технического описания (PDF) - Linear Technology
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LT1680 Datasheet PDF : 16 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT1680
Error Amplifier Source Current
vs Temperature
350
325
300
275
250
225
200
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1680 G10
RUN/SHDN Threshold Hysteresis
vs Temperature
14
13
12
11
10
9
8
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1680 G13
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
1680 G16
SS Output Current
vs Temperature
9
8
7
6
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1680 G11
Average Current Limit Threshold
Sense Voltage vs Common Mode
Voltage
160
FULL OPERATING
150 TEMPERATURE RANGE
140
UPPER LIMIT
130
TYPICAL
120
LOWER LIMIT
110
100
90
80
0 12345
VSENSE(CM) (V)
60
1680 G14
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
1680 G17
RUN/SHDN Rising Threshold
vs Temperature
1.26
1.25
1.24
1.23
1.22
1.21
1.20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1680 G12
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
1680 G15
RUN/SHDN Input Current
vs Pin Voltage
800
FULL OPERATING
700 TEMPERATURE
RANGE
600
500
400
UPPER
TYPICAL
LIMIT
300
200
LOWER
100
LIMIT
0
0
0.5
1.0 (1.25) 1.5
2.0
RUN/SHDN PIN VOLTAGE (V)
1680 G18
5
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