MC7818CT Просмотр технического описания (PDF) - Vishay Siliconix
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MC7818CT Datasheet PDF : 9 Pages
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MC78xxCT Series
Vishay Semiconductor
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig. 1 – Power Dissipation vs.
Ambient Temperature (MC78xxCT)
20
θJC = 5°C/W
θJA = 65°C/W
16
TJ (max) = 150°C
θHS = 5°C/W
12
8.0
θHS = 15°C/W
4.0 No Heatsink
Fig. 2 – Dropout Voltage
vs. Junction Temperature
2.5
Io = 1.0A
2.0
Io = 500mA
1.5
Io = 200mA
Io = 20mA
1.0
Io = 0mA
0
0
25
50
75
100 125
150
Ambient Temperatue (°C)
Fig. 3 – Peak Output Current
3.00
2.25
TJ = --40°C
TJ = 0°C
1.50
TJ = 25°C
TJ = 125°C
0.75
0
0
1000
6.0
12
18
24
30
Input -- Output Voltage Differential (V)
Fig. 5 – Output Impedance (mΩ)
vs. Output Voltage
f = 120Hz
Io = 500mA
CL = OuF
0.5
0
25
50
75
100
125
Fig. 4 –Ripple Rejection Ratio
vs. Output Voltage
80
f = 120Hz
Io = 20mA
˘Vin = 1.0V (RMS)
70
60
Part # / Vin
7805 / 10V
7806 / 11V
50 7808 / 14V
7812 / 19V
7815 / 23V
7818 / 27V
7824 / 33V
40
4.0 6.0 8.0 10 12 14 16 18 20 22 24
Vo -- Output Voltage (V)
Fig. 6 – Output Voltage
vs. Junction Temperature
6.20
Vin = 10V
Vo = 6.0V
Io = 20mA
6.10
100
6.00
5.90
10
4.0
8.0
12
16
20
24
Vo -- Output Voltage (V)
Document Number 74813
29-Nov-01
5.80
--75 --50 --25 0 25 50 100 125 150 175 200
TJ -- Junction Temperature (°C)
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