LTC1644IGN Просмотр технического описания (PDF) - Linear Technology
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LTC1644IGN Datasheet PDF : 24 Pages
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LTC1644
TYPICAL PERFOR A CE CHARACTERISTICS
5V/3.3V Circuit Breaker Trip
Voltage vs Temperature
56.2
TIMER PIN FLOATING
56.0
55.8
55.6
55.4
55.2
55.0
54.8
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G10
GATE Pin Current vs Temperature
(VGATE = 2V, FAULT = 0V)
16
VGATE = 2V
14
FAULT = 0V
12
10
8
6
4
2
0
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G13
GATE Pin Voltage vs Temperature
11.97
IGATE = –1µA
11.96
11.95
11.94
11.93
11.92
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G16
5V/3.3V Circuit Breaker Overcurrent
Fault Response Time
vs Temperature
48.0
47.5
47.0
46.5
46.0
45.5
45.0
44.5
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G11
GATE Pin Current vs Temperature
(VGATE = 5V, OFF/ON = 4V)
300
VGATE = 5V
OFF/ON = 4V
250
200
150
100
50
0
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G14
12V Internal Switch Voltage Drop
vs Temperature
0.35
I = 500mA
0.30
0.25
0.20
0.15
0.10
0.05
0
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G17
5V/3.3V Circuit Breaker Short-
Circuit Response Time
vs Temperature
0.125
0.120
0.115
0.110
0.105
0.100
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1644 G12
GATE Pin Current vs Temperature
(VGATE = 0V, OFF/ON = 0V)
–40
VGATE = 5V
–45 OFF/ON = 4V
–50
–55
–60
–65
–70
–75
–80
–85
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1644 G15
VEE Internal Switch Voltage Drop
vs Temperature
0.18
IEE = 100mA
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1644 G18
1644f
5
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