MC7818BT Просмотр технического описания (PDF) - ON Semiconductor
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MC7818BT Datasheet PDF : 34 Pages
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MC7800, MC7800A, MC7800AE, NCV7800
ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 500 mA, TJ = Tlow to 125°C (Note 17), unless otherwise noted)
MC7812B/NCV7812B
MC7812C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max Unit
Output Voltage (TJ = 25°C)
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
14.5 Vdc ≤ Vin ≤ 27 Vdc
15.5 Vdc ≤ Vin ≤ 27 Vdc
Line Regulation, TJ = 25°C (Note 18)
14.5 Vdc ≤ Vin ≤ 30 Vdc
16 Vdc ≤ Vin ≤ 22 Vdc
14.8 Vdc ≤ Vin ≤ 27 Vdc, IO = 1.0 A
Load Regulation, TJ = 25°C (Note 18)
5.0 mA ≤ IO ≤ 1.5 A
VO
11.5
12
12.5
11.5
12
12.5
Vdc
VO
Vdc
−
−
−
11.4
12
12.6
11.4
12
12.6
−
−
−
Regline
mV
−
7.5
240
−
3.8
24
−
2.2
120
−
0.3
24
−
−
−
−
−
48
Regload
−
1.6
240
−
8.1
60
mV
Quiescent Current
IB
Quiescent Current Change
DIB
14.5 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C
15 Vdc ≤ Vin ≤ 30 Vdc
5.0 mA ≤ IO ≤ 1.0 A
Ripple Rejection
RR
−
3.4
8.0
−
3.4
6.5
mA
mA
−
−
−
−
−
0.7
−
−
1.0
−
−
0.8
−
−
0.5
−
−
0.5
−
60
−
55
60
−
dB
15 Vdc ≤ Vin ≤ 25 Vdc, f = 120 Hz
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
VI − VO
−
2.0
−
Vn
−
10
−
−
2.0
−
Vdc
−
10
−
mV/VO
Output Resistance f = 1.0 kHz
rO
−
1.1
−
−
1.1
−
mW
Short Circuit Current Limit (TA = 25°C)
ISC
−
0.2
−
−
0.2
−
A
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Imax
−
2.2
−
−
2.2
−
A
Average Temperature Coefficient of Output Voltage TCVO
−
−0.8
−
−
−0.8
−
mV/°C
17. Tlow = 0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB
18. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
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