HM7805 datasheet(5/7 Pages) HMSEMI

Il numero della parte	HM7805

Spiegazioni elettronici	Linear Integrated Circuit

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Produttore elettronici	HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]

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5

Tj=25

°C

14.4

15.0

15.6

V

Output voltage

Vo

5.0mA<Io<1.0A,Po<15W

Vi=17.5Vto25V

14.25

15

15.75

V

Line regulation

∆Vo

Tj=25

°C,Vi=17.5Vto28V

11

300

mV

Tj=25

°C,Vi=20Vto25V

3

150

mV

Load regulation

∆Vo

Tj=25

°C,Io=5.0mAto1.2A

12

300

mV

Tj=25

°C,Io=250mA to 750mA

4

150

mV

Quiescent current

IQ

Tj=25

°C

5.2

8

mA

Quiescent current change

∆IQ

Io=5mA to 1.0A

0.5

mA

Vi=17.5Vto25V

1.0

mA

Output voltage drift

∆Vo/∆T

Io=5mA

-1

mV/

°C

Output noise voltage

VN

f=10Hz to 100kHz,Ta=25

°C

90

µV

Ripplerejection

RR

f=120Hz,Vi=18.5Vto25V

54

70

dB

Dropout voltage

Vo

Io=1.0A,Tj=25

°C

2V

Output resistance

Ro

f=1kHz

19

m

Ω

Short circuit current

Isc

Vi=30V,Ta=25

°C

250

mA

peak current

Ipk

Tj=25

°C

1.5A

TEST CIRCUITS

3

1

2

78XX

Vi

Vo

C1

0.33

µF

C0

0.1

µF

3

1

2

78XX

0.33

µF

Vi

Vo

TIP31

RL

270pF

100

30

µs

FIG.1 DC PARAMETERS

FIG.2 LOAD REGULATION

3

1

2

78XX

120Hz

0.33

µF

470

µFRL

5.1

Vi

Vo

FIG.3 RIPPLE REJECTION

781 ELECTRICALCHARACTERISTICS

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Units

LINEAR INTEGRATED CIRCUIT

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