LT1579CS Просмотр технического описания (PDF) - Linear Technology
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LT1579CS Datasheet PDF : 20 Pages
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LT1579
TYPICAL PERFORMANCE CHARACTERISTICS
Logic Flag Input Current
(Output High)
25
20
15
10
5
0
01 2 3 4 5 6 7
LOGIC FLAG VOLTAGE (V)
Low-Battery Comparator
Hysteresis
25
ILBO(SINK) = 50µA
89
1579 G22
20
15
10
5
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
1579 G25
Adjust Pin Input Current
1.0
0.9
TJ = 25°C
VIN1 = VIN2 = 0V
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
ADJUST PIN VOLTAGE (V)
1579 G28
Control Pin Input Current
25
20
15
10
5
0
01 2 3 4 5 6 7 8 9
CONTROL PIN VOLTAGE (V)
1579 G23
Reverse Output Current
25
TJ = 25°C
VIN1 = VIN2 = 0V
20
CURRENT FLOWS INTO
OUTPUT PIN
15
10
LT1579-3.3
LT1579-3
5
LT1579-5
0
01 2 3 4 5 6 7 8 9
OUTPUT VOLTAGE (V)
1579 G26
Current Limit
0.6
VOUT = 0V
0.5
0.4
0.3
0.2
0.1
0
01
2 34 5
INPUT VOLTAGE (V)
67
1579 G29
Low-Battery Comparator
Hysteresis
20
15
10
5
0
0
10
20
30
40
50
ILBO SINK CURRENT (µA)
1579 G24
Reverse Output Current
20
18
VIN1 = VIN2 = 0V
VOUT = 3V (LT1579-3)
16 VOUT = 3.3V (LT1579-3.3)
VOUT = 5V (LT1579-5)
14
12
10
8
6
4
2
0
– 50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1579 G27
Current Limit
0.7
VIN1 = VIN2 = VOUT(NOMINAL) + 1V
0.6 ∆VOUT = – 0.1V
TYPICAL
0.5
0.4
GUARANTEED
0.3
0.2
0.1
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
1579 G38
8
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