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
12V Foldback Current Limit
vs Temperature
1.00
0.90
12VOUT = 10V
0.80
0.70
0.60
0.50
12VOUT = 0V
0.40
0.30
0.20
0.10
0
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G19
VEEOUT PWRGD Threshold Voltage
vs Temperature
–10.46
–10.47
–10.48
–10.49
–10.50
–10.51
–10.52
–10.53
–10.54
–50
–25 0 25 50
TEMPERATURE (°C)
75 100
1644 G22
3V Only Window Voltage
vs Temperature
0.14
0.13
0.12
5VIN – 3VIN
0.11
3VIN – 5VIN
0.10
0.09
0.08
0.07
0.06
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G25
VEE Foldback Current Limit
vs Temperature
0.45
0.40
0.35
VEEOUT = –10V
0.30
0.25
0.20
0.15
VEEOUT = 0V
0.10
0.05
0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1644 G20
5VOUT PWRGD Threshold Voltage
vs Temperature
4.622
4.620
4.618
4.616
4.614
4.612
4.610
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1644 G23
No VEEIN Threshold Voltage vs
Temperature
–4.20
–4.30
–4.40
–4.50
–4.60
–4.70
–4.80
–4.90
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1644 G26
6
12VOUT PWRGD Threshold
Voltage vs Temperature
11.11
11.10
11.09
11.08
11.07
11.06
11.05
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1644 G21
3VOUT PWRGD Threshold Voltage
vs Temperature
2.905
2.903
2.901
2.899
2.897
2.895
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1644 G24
5VSENSE Input Current vs
Temperature
60
50
5VOUT = 0V
40
30
20
10
0
–50
5VOUT = 3V
–25 0 25 50
TEMPERATURE (°C)
75 100
1644 G27
1644f
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