MC7808BD2TG datasheet(16/31 Pages) ONSEMI

Part #	MC7808BD2TG

Description	1.0 A Positive Voltage Regulators

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Manufacturer	ONSEMI [ON Semiconductor]

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MC7800, MC7800A, MC7800AE, NCV7800

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16

ELECTRICAL CHARACTERISTICS (Vin = 27 V, IO = 1.0 A, TJ = Tlow to 125°C (Note 27), unless otherwise noted)

Characteristic

Symbol

MC7818AC

Unit

Min

Typ

Max

Output Voltage (TJ = 25°C)

VO

17.64

18

18.36

Vdc

Output Voltage (5.0 mA

≤ IO ≤ 1.0 A, PD ≤ 15 W)

21 Vdc

≤ Vin ≤ 33 Vdc

VO

17.3

18

18.7

Vdc

Line Regulation (Note 28)

21 Vdc

≤ Vin ≤ 33 Vdc, IO = 500 mA

24 Vdc

≤ Vin ≤ 30 Vdc, IO = 1.0 A

24 Vdc

≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C

20.6 Vdc

≤ Vin ≤ 33 Vdc, IO = 1.0 A, TJ = 25°C

Regline

−

9.5

3.2

8.0

22

25

10.5

22

mV

Load Regulation (Note 28)

5.0 mA

≤ IO ≤ 1.5 A, TJ = 25°C

5.0 mA

≤ IO ≤ 1.0 A

250 mA

≤ IO ≤ 750 mA

Regload

−

2.0

1.8

1.5

25

15

mV

Quiescent Current

IB

−

3.5

6.0

mA

Quiescent Current Change

21 Vdc

≤ Vin ≤ 33 Vdc, IO = 500 mA

21.5 Vdc

≤ Vin ≤ 30 Vdc, TJ = 25°C

5.0 mA

≤ IO ≤ 1.0 A

DIB

−

0.8

0.5

mA

Ripple Rejection

22 Vdc

≤ Vin ≤ 32 Vdc, f = 120 Hz, IO = 500 mA

RR

53

57

−

dB

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

VI − VO

−

2.0

−

Vdc

Output Noise Voltage (TA = 25°C)

10 Hz

≤ f ≤ 100 kHz

Vn

−

10

−

mV/VO

Output Resistance f = 1.0 kHz

rO

−

1.3

−

m

W

Short Circuit Current Limit (TA = 25°C)

Vin = 35 Vdc

ISC

−

0.2

−

A

Peak Output Current (TJ = 25°C)

Imax

−

2.2

−

A

Average Temperature Coefficient of Output Voltage

TCVO

−

−1.5

−

mV/

°C

27. Tlow =0°C for MC78XXC, MC78XXAC,

=

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

28. 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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MC7808BD2TG Datasheet(PDF) 16 Page - ON Semiconductor

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