LM340AT-5 Просмотр технического описания (PDF) - Motorola => Freescale

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LM340AT-5

Three-Terminal Positive Fixed Voltage Regulators

Motorola => Freescale 

MC7800, MC7800A, LM340, LM340A Series

ELECTRICAL CHARACTERISTICS (continued) (Vin = 19 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7812C/LM340T–12

Characteristic

Symbol

Min

Typ

Max

Unit

Output Noise Voltage (TA = 25°C)

10 Hz ≤ f ≤ 100 kHz

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

–

1.1

–

mΩ

–

0.2

–

A

–

2.2

–

A

–

–0.8

–

mV/°C

ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7812AC/LM340AT–12

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25°C)

VO

11.75

12

12.25

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

14.8 Vdc ≤ Vin ≤ 27 Vdc

Line Regulation (Note 2)

14.8 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA

16 Vdc ≤ Vin ≤ 22 Vdc, IO = 1.0 A

14.5 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C

VO

11.5

12

12.5

Regline

–

3.8

18

–

2.2

20

–

6.0

120

Load Regulation (Note 2)

5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A

Regload

–

–

–

25

–

25

Quiescent Current

IB

–

3.4

6.0

Quiescent Current Change

15 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA

14.8 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C

5.0 mA ≤ IO ≤ 1.0 A, TJ = 25°C

Ripple Rejection

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

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

∆IB

–

–

0.8

–

–

0.8

–

–

0.5

RR

55

60

–

VI – VO

–

2.0

–

Output Noise Voltage (TA = 25°C)

10 Hz ≤ f ≤ 100 kHz

Vn

–

10

–

Output Resistance (f = 1.0 kHz)

rO

–

1.1

–

Short Circuit Current Limit (TA = 25°C)

Vin = 35 Vdc

Peak Output Current (TJ = 25°C)

ISC

Imax

–

0.2

–

–

2.2

–

Average Temperature Coefficient of Output Voltage

TCVO

–

–0.8

–

NOTES: 1. Tlow = –40°C for MC78XXAC, C, LM340AT–XX, LM340T–XX Thigh = +125°C for MC78XXAC, C, LM340AT–XX, LM340T–XX

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.

Vdc

Vdc

mV

mV

mA

mA

dB

Vdc

µV/VO

mΩ

A

A

mV/°C

8

MOTOROLA ANALOG IC DEVICE DATA

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