KA7809ER datasheet(11/29 Pages) FAIRCHILD

Il numero della parte	KA7809ER

Spiegazioni elettronici	3-Terminal 1A Positive Voltage Regulator

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Produttore elettronici	FAIRCHILD [Fairchild Semiconductor]

Homepage	http://www.fairchildsemi.com

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KA78XXE/KA78XXAE Rev. 1.0.1

Electrical Characteristics (KA7824E) (Continued)

Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 33V, CI = 0.33µF, CO = 0.1µF, unless otherwise speciﬁed.

Notes:

17. 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 is used.

18. These parameters, although guaranteed, are not 100% tested in production.

Symbol

Parameter

Conditions

KA7824E

Unit

Min.

Typ.

Max.

VO

Output Voltage

TJ = +25°C23

24

25

V

5.0mA

≤ IO ≤ 1.0A, PO ≤ 15W

VI = 27V to 38V

22.8

24

25.25

Regline

Line Regulation(17)

TJ = +25°CVI = 27V to 38V

–

17

480

mV

VI = 30V to 36V

–

6

240

Regload

Load Regulation(17)

TJ = +25°CIO = 5mA to 1.5A

–

15

480

mV

IO = 250mA to 750mA

–

5.0

240

IQ

Quiescent Current

TJ = +25°C–

5.2

8.0

mA

∆IQ

Quiescent Current Change

IO = 5mA to 1.0A

–

0.1

0.5

mA

VI = 27V to 38V

–

0.5

1

∆VO/∆T

Output Voltage Drift(18)

IO = 5mA

–

-1.5

–

mV/

°C

VN

Output Noise Voltage

f = 10Hz to 100kHz, TA = +25°C–

60

–

µV/Vo

RR

Ripple Rejection(18)

f = 120Hz

VI = 28V to 38V

50

67

–

dB

VDrop

Dropout Voltage

IO = 1A, TJ = +25°C–

2

–

V

rO

Output Resistance(18)

f = 1kHz

–

28

–

m

Ω

ISC

Short Circuit Current

VI = 35V, TA = +25°C–

230

–

mA

IPK

Peak Current(18)

TJ = +25°C–

2.2

–

A

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