MC7824ACT datasheet(12/34 Pages) ONSEMI

12 / 34 page

MC7800, MC7800A, MC7800AE, NCV7800

http://onsemi.com

ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 1.0 A, TJ = Tlow to 125°C (Note 19), unless otherwise noted)

MC7812AB/MC7812AC/NCV7812AB

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25°C)

11.75

12.25

Vdc

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

11.5

12.5

Vdc

14.8 Vdc ≤ Vin ≤ 27 Vdc

Line Regulation (Note 20)

Regline

14.8 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA

−

3.8

16 Vdc ≤ Vin ≤ 22 Vdc, IO = 1.0 A

−

2.2

14.5 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C

−

6.0

120

Load Regulation (Note 20)

Regload

5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C

−

5.0 mA ≤ IO ≤ 1.0 A

−

Quiescent Current

−

3.4

6.0

Quiescent Current Change

DIB

15 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA

−

0.8

14.8 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C

−

0.8

5.0 mA ≤ IO ≤ 1.0 A, TJ = 25°C

−

0.5

Ripple Rejection

−

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

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

VI − VO

−

2.0

−

Vdc

Output Noise Voltage (TA = 25°C)

−

mV/VO

10 Hz ≤ f ≤ 100 kHz

Output Resistance (f = 1.0 kHz)

−

1.1

−

Short Circuit Current Limit (TA = 25°C)

ISC

−

0.2

−

Vin = 35 Vdc

Peak Output Current (TJ = 25°C)

Imax

−

2.2

−

Average Temperature Coefficient of Output Voltage

TCVO

−

−0.8

−

mV/°C

19.Tlow =0°C for MC78XXC, MC78XXAC,

= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB

20.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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