AN78XX 데이터 시트보기 (PDF) - Panasonic Corporation

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AN78XX

3-pin positive output voltage regulator (1 A type)

Panasonic Corporation 

AN78xx/AN78xxF Series

I Main Characteristic Curve

PD  Ta (AN78xx series)

16

(1)

14

(2)

12

10

8

(3)

6

4

2

(4)

0

0

40

80

120

160

Ambient temperature Ta (°C)

Thermal resistance value:

Rth(j-c) = 5°C/W (max.)

Rth(j-a) = 65°C/W (max.)

Installation condition to heat sink

Tightening torque 6kg·cm

Heat radiation compound used

(1) Infinite heat sink: 15.0W

(2) 5°C/W heat sink: 12.5W

(3) 15°C/W heat sink: 6.3W

(4) Without heat sink: 1.923W

Input transient response

20

AN7805

15

10

10

5

0

−10

−20

0

2

4

6

8

10

Time t (µs)

PD  Ta (AN78xxF series)

16

14

12

(1)

10

8

(2)

6

(3)

4

2

(4)

0

0

40

80

120

160

Ambient temperature Ta (°C)

Thermal resistance value:

Rth(j-c) = 12.2°C/W (max.)

Rth(j-a) = 65°C/W (max.)

Installation condition to heat sink

Tightening torque 6kg·cm

Heat radiation compound used

(1) Infinite heat sink: 10.25W

(2) 5°C/W heat sink: 7.3W

(3) 15°C/W heat sink: 4.5W

(4) Without heat sink: 1.923W

Load transient response

AN7805

2

1

0

1

0

−1

−2

0

10 20 30 40 50

Time t (µs)

Voltage Regulators

VDIF(min.)  Tj

2.4

2.0

IO = 1A

500mA

1.6

200mA

20mA

1.2

0.8

0mA

0.4

0

−40 0

40 80 120 160

Junction temperature Tj (°C)

Current limiting characteristic

7

VI = 10V

6

Tj = 25°C

AN7805

5

4

3

2

1

0

0

0.6

1.2

1.8

2.4

Output current IO (A)

8

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