SGS Thomson Microelectronics L7824ABV, L7820ACV, L7824ACV, L7820ABV, L7818ACV Datasheet

L7800AB/AC

SERIES

PRECISION 1A REGULATORS



November 1999

■ OUTPUT CURRENT INEXCESSOF1 A

■

OUTPUT VOLTAGESOF 5;6; 8; 9; 12; 15; 18; 20;24V

■

THERMAL OVERLOADPROTECTION

■ OUTPUT TRANSITIONSOAPROTECTION

■ 2%OUTPUTVOLTAGETOLERANCE

■

GUARANTEEDINEXTENDED TEMPERATURERANGE

DESCRIPTION

The L7800A series of three-terminal positive regulators is available in TO-220 and D

2

PAK packages and several fixed output voltages, making it useful in a wide range of applications.These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustablevoltages and currents.

TO-220

D

2

PAK

BLOCKDIAGRAM

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CONNECTION DIAGRAM AND ORDERING NUMBERS(top view)

TO-220 D2PAK

THERMALDATA

Symbol Parameter D2PAK TO-220 Unit

R

thj-cas e

R

thj-amb

Thermal Resistance Junction-case Max Thermal Resistance Junction-ambient Max

3

62.5

3

50

o

C/W

o

C/W

Type TO-220 D

2

PAK (*) Output Voltage

L7805AB L7805AC L7806AB L7806AC L7808AB L7808AC L7809AB L7809AC L7812AB L7812AC L7815AB L7815AC L7818AB L7818AC L7820AB L7820AC L7824AB L7824AC

L7805ABV L7805ACV L7806ABV L7806ACV L7808ABV L7808ACV L7809ABV L7809ACV L7812ABV L7812ACV L7815ABV L7815ACV L7818ABV L7818ACV L7820ABV L7820ACV L7824ABV L7824ACV

L7805ABD2T L7805ACD2T L7806ABD2T L7806ACD2T L7808ABD2T L7808ACD2T L7809ABD2T L7809ACD2T L7812ABD2T L7812ACD2T L7815ABD2T L7815ACD2T

5V 5V 6V 6V 8V 8V 9V

9V 12V 12V 15V 15V 18V 18V 24V 24V

(*) AVAILABLE IN TAPE AND REEL WITH ”-TR” SUFFIX

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

i

DC InputVoltage (for VO= 5 to 18V)

(forV

O

= 20,24V)

35 40

V V

I

o

OutputCurrent Internally limited

P

tot

PowerDissipation Internally limited

T

op

OperatingJunction TemperatureRange (for L7800AC)

(for L7800AB)

0to150

-40 to 125

o

C

o

C

T

stg

StorageTemperature Range - 65 to 150

o

C

L7800AB/AC

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APPLICATION CIRCUIT

SCHEMATIC DIAGRAM

L7800AB/AC

3/17

TESTCIRCUITS

Figure3 : RippleRejection.

Figure2 : Load Regulation.Figure1 : DC Parameter

L7800AB/AC

4/17

* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.

ELECTRICAL CHARACTERISTICS FOR L7805A

(V

i

= 10V,Io= 1A, Tj= 0 to125oC (L7805AC),

T

j

= -40to 125oC (L7805AB)unless otherwise specified)

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

o

OutputVoltage Tj=25oC 4.955.1V

V

o

OutputVoltage Io=5 mA to 1 A Po≤ 15W

V

i

= 7.5 to 20 V

4.855.2V

∆V

o

* LineRegulation Vi= 7.5 to 25 V Io=500mA

V

i

= 8 to12 V

V

i

= 8 to12 V Tj=25oC

V

i

= 7.3 to 20 V Tj=25oC

7

10

2 7

50

5 25 50

mV mV mV mV

∆V

o

* Load Regulation Io=5 mA to 1 A

I

o

=5 mA to 1.5A Tj=25oC

I

o

=250 to 750 mA

25 30

8

100 100

50

mV mV mV

I

d

QuiescentCurrent Tj=25oC4.36

6

mA

∆

I

d

QuiescentCurrent Change Vi= 8 to25 V Io= 500 mA

V

i

= 7.5 to 20 V Tj=25oC

I

o

=5 mA to 1 A

0.8

0.5

mA mA mA

SVR Supply VoltageRejection V

i

= 8 to18 V f= 120Hz

I

o

=500 mA

68 dB

V

d

Dropout Voltage Io=1A Tj=25oC2V

e

N

OutputNoise Voltage B = 10Hzto 100KHz Tj=25oC10µV/V

o

R

o

OutputResistance f = 1KHz 17 mΩ

I

sc

ShortCircuitCurrent Vi=35V T

amb

=25oC0.2A

I

scp

ShortCircuitPeack Current Tj=25oC2.2A

∆

V

o

∆

T

OutputVoltageDrift -1.1 mV/oC

L7800AB/AC

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ELECTRICAL CHARACTERISTICS FOR L7806A

(V

i

= 11V,Io= 1A, Tj= 0 to125oC (L7806AC),

T

j

= -40to 125oC (L7806AB)unless otherwise specified)

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

o

OutputVoltage Tj=25oC5.8866.12V

V

o

OutputVoltage Io=5 mA to 1 A P

o

≤

15 W

V

i

= 8.6 to 21 V

5.76 6 6.24 V

∆

V

o

* LineRegulation Vi= 8.6 to 25 V Io=500mA

V

i

= 9 to13 V

V

i

= 9 to13 V Tj=25oC

V

i

= 8.3 to 21 V Tj=25oC

9

11

3 9

60 60 30 60

mV mV mV mV

∆V

o

* Load Regulation Io=5 mA to 1 A

I

o

=5 mA to 1.5A Tj=25oC

I

o

=250 to 750 mA

25 30 10

100 100

50

mV mV mV

I

d

QuiescentCurrent Tj=25oC4.36

6

mA

∆

I

d

QuiescentCurrent Change Vi= 9 to25 V Io= 500 mA

V

i

= 8.6 to 21 V Tj=25oC

I

o

=5 mA to 1 A

0.8

0.5

mA mA mA

SVR Supply VoltageRejection V

i

= 9 to19 V f= 120Hz

I

o

=500 mA

65 dB

V

d

Dropout Voltage Io=1A Tj=25oC2V

e

N

OutputNoise Voltage B = 10Hzto 100KHz Tj=25oC10

µ

V/V

o

R

o

OutputResistance f = 1KHz 17 m

Ω

I

sc

ShortCircuitCurrent Vi=35V T

amb

=25oC0.2A

I

scp

ShortCircuitPeack Current Tj=25oC2.2A

∆

V

o

∆

T

OutputVoltageDrift -0.8 mV/oC

* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.

L7800AB/AC

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