MC7824ACT datasheet(8/34 Pages) ONSEMI

8 / 34 page

MC7800, MC7800A, MC7800AE, NCV7800

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ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 1.0 A, TJ = Tlow to 125°C (Note 11), unless otherwise noted)

Characteristic

Symbol

MC7808AB/MC7808AC

MC7808AEB

Unit

Min

Typ

Max

Min

Typ

Max

Output Voltage (TJ = 25°C)

7.84

8.0

8.16

7.88

8.12

Vdc

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

10.6 Vdc ≤ Vin ≤ 23 Vdc

7.7

8.0

8.3

7.88

8.12

Vdc

Line Regulation (Note 12)

10.6 Vdc ≤ Vin ≤ 25 Vdc, IO = 500 mA

11 Vdc ≤ Vin ≤ 17 Vdc, IO = 1.0 A

10.4 Vdc ≤ Vin ≤ 23 Vdc, TJ = 25°C

Regline

−

6.0

1.7

5.0

−

6.0

1.7

5.0

Load Regulation (Note 12)

5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A

250 mA ≤ IO ≤ 750 mA

Regload

−

1.4

1.0

0.22

−

1.4

1.0

0.22

Quiescent Current

−

3.3

6.0

−

3.3

6.0

Quiescent Current Change

11 Vdc ≤ Vin ≤ 25 Vdc, IO = 500 mA

10.6 Vdc ≤ Vin ≤ 23 Vdc, IO = 1.0 A, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A

DIB

−

0.8

0.5

−

0.8

0.5

Ripple Rejection

11.5 Vdc ≤ Vin ≤ 21.5 Vdc, f = 120 Hz, IO = 500 mA

−

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

VI − VO

−

2.0

−

2.0

−

Vdc

Output Noise Voltage (TA = 25°C)

10 Hz ≤ f ≤ 100 kHz

−

mV/VO

Output Resistance f = 1.0 kHz

−

0.9

−

0.9

−

Short Circuit Current Limit (TA = 25°C)

Vin = 35 Vdc

ISC

−

0.2

−

0.2

−

Peak Output Current (TJ = 25°C)

Imax

−

2.2

−

2.2

−

Average Temperature Coefficient of Output Voltage

TCVO

−

−0.4

−

−0.4

−

mV/°C

11. Tlow =0°C for MC78XXC, MC78XXAC,

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

12.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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