Texas Instruments UA7812CKTER, UA7812CKTE, UA7810QKTE, UA7812CKC, UA7810CKTER Datasheet

µA7800 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS056E – MAY 1976 – REVISED JULY 1999

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

3-Terminal Regulators

D

Output Current up to 1.5 A

D

Internal Thermal-Overload Protection

D

High Power-Dissipation Capability

D

Internal Short-Circuit Current Limiting

D

Output Transistor Safe-Area Compensation

D

Direct Replacements for Fairchild µA7800
Series

description

This series of fixed-voltage monolithic
integrated-circuit voltage regulators is designed
for a wide range of applications. These
applications include on-card regulation for
elimination of noise and distribution problems
associated with single-point regulation. Each of
these regulators can deliver up to 1.5 A of output
current. The internal current-limiting and
thermal-shutdown features of these regulators
essentially make them immune to overload. In
addition to use as fixed-voltage regulators, these
devices can be used with external components to
obtain adjustable output voltages and currents,
and also can be used as the power-pass element
in precision regulators.

The µA7800C series is characterized for
operation over the virtual junction temperature
range of 0°C to 125°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright  1999, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

KC PACKAGE

(TOP VIEW)

The COMMON terminal is in electrical
contact with the mounting base.

TO-220AB

OUTPUT
COMMON
INPUT

KTE PACKAGE

(TOP VIEW)

The COMMON terminal is in
electrical contact with the mounting
base.

O

C

I

OUTPUT
COMMON
INPUT

O

C

I

µA7800 SERIES
POSITIVE-VOLTAGE REGULATORS

SLVS056E – MAY 1976 – REVISED JULY 1999

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

AVAILABLE OPTIONS

PACKAGED DEVICES

T

J

V

O(NOM)

(V)

PLASTIC

FLANGE-MOUNT

(KC)

HEAT-SINK

MOUNTED

(KTE)

CHIP

FORM

(Y)

5 µA7805CKC µA7805CKTE µA7805Y
6 µA7806CKC µA7806CKTE µA7806Y
8 µA7808CKC µA7808CKTE µA7808Y

8.5 µA7885CKC µA7885CKTE µA7885Y

0°C to 125°C

10 µA7810CKC µA7810CKTE µA7810Y
12 µA7812CKC µA7812CKTE µA7812Y
15 µA7815CKC µA7815CKTE µA7815Y
18 µA7818CKC µA7818CKTE µA7818Y
24 µA7824CKC µA7824CKTE µA7824Y

The KTE package is only available taped and reeled. Add the suffix R to the device type
(e.g., µA7805CKTER). Chip forms are tested at 25°C.

schematic

INPUT

OUTPUT

COMMON

µA7800 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS056E – MAY 1976 – REVISED JULY 1999

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating temperature ranges (unless otherwise noted)

†

µA78xx UNIT

p

µA7824C 40

Input voltage, V

I

All others 35

V

Virtual junction temperature range, T

J

0 to 150 °C

p

KC package 22

°

Package thermal impedance, θ

JA

(see Notes 1 and 2)

KTE package 23

°C

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 °C
Storage temperature range, T

stg

–65 to 150 °C

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable

ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to
variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.

2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.

recommended operating conditions

MIN MAX UNIT

µA7805C 7 25
µA7806C 8 25
µA7808C 10.5 25
µA7885C 10.5 25

Input voltage, V

I

µA7810C 12.5 28

V

µA7812C 14.5 30
µA7815C 17.5 30
µA7818C 21 33
µA7824C 27 38

Output current, I

O

1.5 A

Operating virtual junction temperature, T

J

µA7800C series 0 125 °C

µA7800 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS056E – MAY 1976 – REVISED JULY 1999

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics at specified virtual junction temperature, VI = 10 V, IO = 500 mA (unless
otherwise noted)

µA7805C

PARAMETER

TEST CONDITIONS

T

J

†

MIN TYP MAX

UNIT

p

I

= 5 mA to 1 A, V

= 7 V to 20 V,

25°C 4.8 5 5.2

Output voltage

O

,

PD ≤ 15 W

I

,

0°C to 125°C 4.75 5.25

V

p

VI = 7 V to 25 V

°

3 100

Input voltage regulation

VI = 8 V to 12 V

25°C

1 50

mV

Ripple rejection VI = 8 V to 18 V, f = 120 Hz 0°C to 125°C 62 78 dB

p

IO = 5 mA to 1.5 A

°

15 100

Output voltage regulation

IO = 250 mA to 750 mA

25°C

5 50

mV

Output resistance f = 1 kHz 0°C to 125°C 0.017 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1.1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 40 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.2 8 mA

VI = 7 V to 25 V

1.3

Bias current change

IO = 5 mA to 1 A

0°C

to

125°C

0.5

mA

Short-circuit output current 25°C 750 mA
Peak output current 25°C 2.2 A

†

Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.

electrical characteristics at specified virtual junction temperature, VI = 11 V, IO = 500 mA (unless
otherwise noted)

µA7806C

PARAMETER

TEST CONDITIONS

T

J

†

MIN TYP MAX

UNIT

p

I

= 5 mA to 1 A, V

= 8 V to 21 V,

25°C 5.75 6 6.25

Output voltage

O

,

PD ≤ 15 W

I

,

0°C to 125°C 5.7 6.3

V

p

VI = 8 V to 25 V

°

5 120

Input voltage regulation

VI = 9 V to 13 V

25°C

1.5 60

mV

Ripple rejection VI = 9 V to 19 V, f = 120 Hz 0°C to 125°C 59 75 dB

p

IO = 5 mA to 1.5 A

°

14 120

Output voltage regulation

IO = 250 mA to 750 mA

25°C

4 60

mV

Output resistance f = 1 kHz 0°C to 125°C 0.019 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.8 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 45 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.3 8 mA

VI = 8 V to 25 V

°

°

1.3

Bias current change

IO = 5 mA to 1 A

0°C to 125°C

0.5

mA

Short-circuit output current 25°C 550 mA
Peak output current 25°C 2.2 A

†

Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.

µA7800 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS056E – MAY 1976 – REVISED JULY 1999

5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics at specified virtual junction temperature, VI = 14 V, IO = 500 mA (unless
otherwise noted)

µA7808C

PARAMETER

TEST CONDITIONS

T

J

†

MIN TYP MAX

UNIT

p

I

= 5 mA to 1 A, V

= 10.5 V to 23 V,

25°C 7.7 8 8.3

Output voltage

O

,

PD ≤ 15 W

I

,

0°C to 125°C 7.6 8.4

V

p

VI = 10.5 V to 25 V

°

6 160

Input voltage regulation

VI = 11 V to 17 V

25°C

2 80

mV

Ripple rejection VI = 11.5 V to 21.5 V, f = 120 Hz 0°C to 125°C 55 72 dB

p

IO = 5 mA to 1.5 A

°

12 160

Output voltage regulation

IO = 250 mA to 750 mA

25°C

4 80

mV

Output resistance f = 1 kHz 0°C to 125°C 0.016 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.8 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 52 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.3 8 mA

VI = 10.5 V to 25 V

°

°

1

Bias current change

IO = 5 mA to 1 A

0°C to 125°C

0.5

mA

Short-circuit output current 25°C 450 mA
Peak output current 25°C 2.2 A

†

Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.

electrical characteristics at specified virtual junction temperature, VI = 15 V, IO = 500 mA (unless
otherwise noted)

µA7885C

PARAMETER

TEST CONDITIONS

T

J

†

MIN TYP MAX

UNIT

p

I

= 5 mA to 1 A, V

= 11 V to 23.5 V,

25°C 8.15 8.5 8.85

Output voltage

O

,

PD ≤ 15 W

I

,

0°C to 125°C 8.1 8.9

V

p

VI = 10.5 V to 25 V

°

6 170

Input voltage regulation

VI = 11 V to 17 V

25°C

2 85

mV

Ripple rejection VI = 11.5 V to 21.5 V, f = 120 Hz 0°C to 125°C 54 70 dB

p

IO = 5 mA to 1.5 A

°

12 170

Output voltage regulation

IO = 250 mA to 750 mA

25°C

4 85

mV

Output resistance f = 1 kHz 0°C to 125°C 0.016 Ω
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.8 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 55 µV
Dropout voltage IO = 1 A 25°C 2 V
Bias current 25°C 4.3 8 mA

VI = 10.5 V to 25 V

°

°

1

Bias current change

IO = 5 mA to 1 A

0°C to 125°C

0.5

mA

Short-circuit output current 25°C 450 mA
Peak output current 25°C 2.2 A

†

Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.