MC7818ACD2T Просмотр технического описания (PDF) - Motorola => Freescale

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MC7818ACD2T

THREE–TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Motorola => Freescale 

MC7800, MC7800A, LM340, LM340A Series

ELECTRICAL CHARACTERISTICS (continued) (Vin = 33 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7824C

Characteristic

Symbol

Min

Typ

Max

Unit

Ripple Rejection

28 Vdc ≤ Vin ≤ 38 Vdc, f = 120 Hz

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

Output Noise Voltage (TA = 25°C)

10 Hz ≤ f ≤ 100 kHz

RR

50

54

VI – VO

–

2.0

Vn

–

10

–

dB

–

Vdc

–

µV/VO

Output Resistance f = 1.0 kHz

Short Circuit Current Limit (TA = 25°C)

Vin = 35 Vdc

Peak Output Current (TJ = 25°C)

Average Temperature Coefficient of Output Voltage

rO

ISC

Imax

TCVO

–

1.4

–

mΩ

–

0.2

–

A

–

2.2

–

A

–

–2.0

–

mV/°C

ELECTRICAL CHARACTERISTICS (Vin = 33 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7824AC

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25°C)

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

27.3 Vdc ≤ Vin ≤ 38 Vdc

Line Regulation (Note 2)

27 Vdc ≤ Vin ≤ 38 Vdc, IO = 500 mA

30 Vdc ≤ Vin ≤ 36 Vdc, IO = 1.0 A

30 Vdc ≤ Vin ≤ 36 Vdc, TJ = 25°C

26.7 Vdc ≤ Vin ≤ 38 Vdc, IO = 1.0 A, TJ = 25°C

Load Regulation (Note 2)

5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A

250 mA ≤ IO ≤ 750 mA

Quiescent Current

Quiescent Current Change

27.3 Vdc ≤ Vin ≤ 38 Vdc, IO = 500 mA

27 Vdc ≤ Vin ≤ 38 Vdc, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A

Ripple Rejection

28 Vdc ≤ Vin ≤ 38 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

VO

23.5

24

24.5

Vdc

VO

23.2

24

25.8

Vdc

Regline

mV

–

11.5

25

–

3.8

28

–

3.8

12

–

10

25

Regload

–

–

–

mV

2.1

15

2.0

25

1.8

15

IB

–

3.6

6.0

mA

∆IB

mA

–

–

0.8

–

–

0.8

–

–

0.5

RR

45

54

–

dB

VI – VO

–

2.0

–

Vdc

Vn

–

10

–

µV/VO

Output Resistance (f = 1.0 kHz)

Short Circuit Current Limit (TA = 25°C)

Vin = 35 Vdc

Peak Output Current (TJ = 25°C)

Average Temperature Coefficient of Output Voltage

rO

ISC

Imax

TCVO

–

1.4

–

mΩ

–

0.2

–

A

–

2.2

–

A

–

–2.0

–

mV/°C

NOTES: 1. Tlow = –40°C for MC78XXAC, C Thigh = +125°C for MC78XXAC, C

2. 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.

12

MOTOROLA ANALOG IC DEVICE DATA

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