MCT7818CT Просмотр технического описания (PDF) - Motorola => Freescale

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Компоненты Описание

производитель

MCT7818CT

THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Motorola => Freescale 

MCT7800

ELECTRICAL CHARACTERISTICS (Vin = 10 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MCT7805B

MCT7805C

Characteristics

Symbol Min

Typ

Max

Min

Typ

Max

Output Voltage (TJ = +25°C)

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

7.0 Vdc ≤ Vin ≤ 20 Vdc

8.0 Vdc ≤ Vin ≤ 20 Vdc

Line Regulation, TJ = +25°C (Note 2)

7.0 Vdc ≤ Vin ≤ 25 Vdc

8.0 Vdc ≤ Vin ≤ 12 Vdc

Load Regulation, TJ = +25°C (Note 2)

5.0 mA ≤ Vin ≤ 1.5 A

250 mA ≤ Vin ≤ 750 mA

Quiescent Current (TJ = +25°C)

Quiescent Current Change

7.0 Vdc ≤ Vin ≤ 25 Vdc

8.0 Vdc ≤ Vin ≤ 25 Vdc

5.0 mA ≤ IO ≤ 1.0 A

Ripple Rejection

8.0 Vdc ≤ Vin ≤ 18 Vdc, f = 120 Hz

VO

4.8

5.0

5.2

4.8

5.0

5.2

VO

—

—

—

4.75

5.0

5.25

4.75

5.0

5.25

—

—

—

Regline

—

7.0

100

—

7.0

100

—

2.0

50

—

2.0

50

Regload

—

2.0

100

—

2.0

100

—

1.5

50

—

1.5

50

IB

—

5.5

8.0

—

5.5

8.0

∆IB

—

—

—

—

—

1.3

—

—

1.3

—

—

—

—

—

0.5

—

—

0.5

RR

—

65

—

—

65

—

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

Output Noise Voltage (TA = +25°C)

10 Hz ≤ f ≤ 100 kHz

VI – VO

—

2.0

—

—

2.0

—

Vn

—

10

—

—

10

—

Output Resistance f = 1.0 kHz

Short Circuit Current Limit (TA = +25°C)

Vin = 35 Vdc

rO

—

1.3

—

—

1.3

—

ISC

—

0.2

—

—

0.2

—

Peak Output Current (TJ = +25°C)

Average Temperature Coefficient of Output Voltage

Imax

—

2.2

—

—

2.2

—

TCVO

—

0.5

—

—

0.5

—

Unit

Vdc

Vdc

mV

mV

mA

mA

dB

Vdc

µV/VO

mΩ

A

A

mV/°C

ELECTRICAL CHARACTERISTICS (Vin = 11 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MCT7806B

MCT7806C

Characteristics

Symbol Min

Typ

Max

Min

Typ

Max Unit

Output Voltage (TJ = +25°C)

VO

5.75

6.0

6.25 5.75

6.0

6.25

Vdc

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

8.0 Vdc ≤ Vin ≤ 21 Vdc

9.0 Vdc ≤ Vin ≤ 21 Vdc

VO

Vdc

—

—

—

5.7

6.0

6.3

5.7

6.0

6.3

—

—

—

Line Regulation, TJ = +25°C (Note 2)

8.0 Vdc ≤ Vin ≤ 25 Vdc

9.0 Vdc ≤ Vin ≤ 13 Vdc

Regline

mV

—

7.0

120

—

7.0

120

—

2.0

60

—

2.0

60

Load Regulation, TJ = +25°C (Note 2)

5.0 mA ≤ Vin ≤ 1.5 A

250 mA ≤ Vin ≤ 750 mA

Regload

mV

—

2.0

120

—

2.0

120

—

1.5

60

—

1.5

60

Quiescent Current (TJ = +25°C)

IB

—

5.5

8.0

—

5.5

8.0

mA

Quiescent Current Change

8.0 Vdc ≤ Vin ≤ 25 Vdc

9.0 Vdc ≤ Vin ≤ 25 Vdc

5.0 mA ≤ IO ≤ 1.0 A

∆IB

mA

—

—

—

—

—

1.3

—

—

1.3

—

—

—

—

—

0.5

—

—

0.5

Ripple Rejection

9.0 Vdc ≤ Vin ≤ 19 Vdc, f = 120 Hz

RR

dB

—

65

—

—

65

—

NOTES:

1. Tlow = 0°C for MCT78XXC

= – 40°C for MCT78XXB

Thigh = +125°C for MCT78XXB, C. When the junction temperature exceeds +125°C, internal current limiting

will reduce the output current to less than 1.0 A at a VI–VO of 15 V or

greater. The MC7800 die will supply more current under the same conditions.

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.

MOTOROLA

MCT7800

3

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