MC7818CD2TR4 查看數據表（PDF） - ON Semiconductor

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MC7818CD2TR4

1.0 A Positive Voltage Regulators

ON Semiconductor 

MC7800, MC7800A, NCV7805

ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 1.0 A, TJ = Tlow to Thigh (Note 18), unless otherwise noted)

MC7812AB/MC7812AC

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25°C)

Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)

14.8 Vdc ≤ Vin ≤ 27 Vdc

Line Regulation (Note 19)

14.8 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA

16 Vdc ≤ Vin ≤ 22 Vdc, IO = 1.0 A

14.5 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C

Load Regulation (Note 19)

5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A

Quiescent Current

Quiescent Current Change

15 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA

14.8 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A, TJ = 25°C

Ripple Rejection

VO

11.75

12

12.25

Vdc

VO

11.5

12

12.5

Vdc

Regline

−

−

−

Regload

−

−

IB

−

DIB

−

−

−

RR

55

mV

3.8

18

2.2

20

6.0

120

mV

−

25

−

25

3.4

6.0

mA

mA

−

0.8

−

0.8

−

0.5

60

−

dB

15 Vdc ≤ Vin ≤ 25 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25°C)

Output Noise Voltage (TA = 25°C)

10 Hz ≤ f ≤ 100 kHz

VI − VO

−

2.0

−

Vdc

Vn

−

10

−

mV/VO

Output Resistance (f = 1.0 kHz)

rO

−

1.1

−

mW

Short Circuit Current Limit (TA = 25°C)

ISC

−

0.2

−

A

Vin = 35 Vdc

Peak Output Current (TJ = 25°C)

Imax

−

2.2

−

A

Average Temperature Coefficient of Output Voltage

TCVO

−

−0.8

−

mV/°C

18. Tlow = 0°C for MC78XXAC, C Thigh = +125°C for MC78XXAC, C, NCV7805

= *40°C for MC78XXB, MC78XXAB, NCV7805

19. 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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