LTC1646 Просмотр технического описания (PDF) - Linear Technology
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LTC1646 Datasheet PDF : 20 Pages
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LTC1646
TYPICAL PERFOR A CE CHARACTERISTICS
5VIN Undervoltage Lockout
Voltage vs Temperature
2.60
2.55
LOW-TO-HIGH TRANSITION
2.50
HIGH-TO-LOW TRANSITION
2.45
3VIN Undervoltage Lockout
Voltage vs Temperature
2.60
LOW-TO-HIGH TRANSITION
2.55
HIGH-TO-LOW TRANSITION
2.50
2.45
2.40
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1646 G04
3VIN Foldback Current Limit
Voltage vs Temperature
60
3VOUT = 2V
50
40
30
3VOUT = 0V
20
10
0
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1646 G07
2.40
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1646 G05
5VIN Circuit Breaker Trip Voltage
vs Temperature
60
59
58
57
56
55
54
53
52
51
50
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1646 G08
5VIN Foldback Current Limit
Voltage vs Temperature
60
5VOUT = 4V
50
40
30
20
5VOUT = 0V
10
0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1646 G06
3VIN Circuit Breaker Trip Voltage
vs Temperature
60
59
58
57
56
55
54
53
52
51
50
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1646 G09
5VIN/3VIN Overcurrent Fault
Response Time vs Temperature
22.00
21.75
21.50
21.25
21.00
20.75
20.50
20.25
20.00
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1646 G10
4
5VIN/3VIN Short-Circuit Fault
Response Time vs Temperature
170
160
150
140
130
120
110
100
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1646 G11
Gate Current vs Temperature
–10
–11
–12
–13
–14
–15
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1646 G12
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