UA79_技术文档

µ

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ꢈꢅꢉ ꢀꢊ ꢇꢋ ꢅꢌꢋꢍ ꢎꢊꢀꢉ ꢅ ꢆꢅꢉ ꢏ ꢎꢀꢊꢍ ꢆꢄ

ꢐ

SLVS058D − JUNE 1976 − REVISED APRIL 2004

KCS (TO-220) PACKAGE

(TOP VIEW)

D

3-Terminal Regulators

Output Current Up To 1.5 A

No External Components

OUTPUT

INPUT

Internal Thermal Overload Protection

High-Power Dissipation Capability

Internal Short-Circuit Current Limiting

Output Transistor Safe-Area Compensation

COMMON

KTE PACKAGE

(TOP VIEW)

description/ordering information

OUTPUT

This

series

of

fixed-negative-voltage

INPUT

integrated-circuit voltage regulators is designed

to complement Series µA7800 in a wide range of

applications. These applications include on-card

regulation for elimination of noise and distribution

COMMON

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 as the power-pass element in precision

regulators.

ORDERING INFORMATION

V

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

O(NOM)

(V)

†

PACKAGE

T

J

Power Flex (KTE)

Reel of 2000

Tube of 50

Reel of 2000

Tube of 50

Reel of 2000

Tube of 50

Reel of 2000

Tube of 50

µA7915CKTER

µA7915CKCS

µA7912CKTER

µA7912CKCS

µA7908CKTER

µA7908CKCS

µA7905CKTER

µA7905CKCS

µA7915C

−15

TO-220, short shoulder (KCS)

Power Flex (KTE)

µA7915C

µA7912C

µA7908C

µA7905C

−12

−8

TO-220, short shoulder (KCS)

Power Flex (KTE)

0°C to 125°C

TO-220, short shoulder (KCS)

Power Flex (KTE)

−5

TO-220, short shoulder (KCS)

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

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.

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Copyright  2004, Texas Instruments Incorporated

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ꢛ ꢟ ꢜ ꢛꢔ ꢕꢩ ꢗꢖ ꢚ ꢢꢢ ꢠꢚ ꢘ ꢚ ꢙ ꢟ ꢛ ꢟ ꢘ ꢜ ꢤ

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1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

µ

ꢀꢁ ꢂꢃ ꢃ ꢄꢅ ꢆꢇ ꢅ ꢄ

ꢈ ꢅꢉꢀꢊ ꢇ ꢋꢅ ꢌꢋꢍꢎꢊꢀꢉ ꢅ ꢆꢅ ꢉ ꢏꢎꢀꢊꢍ ꢆꢄ

ꢐ

SLVS058D − JUNE 1976 − REVISED APRIL 2004

schematic

12 V to 18 V

5 V to 8 V

COMMON

5 kΩ

OUTPUT

6.2 V

20 kΩ

0.2 kΩ

INPUT

All component values are nominal.

†

absolute maximum ratings over virtual junction temperature range (unless otherwise noted)

Input voltage, V : µA7924C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 V

I

All others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −35 V

Operating virtual junction temperature, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C

J

Storage temperature range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65 to 150°C

stg

†

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.

package thermal data (see Note 1)

PACKAGE

BOARD

θ

JC

θ

JA

Power Flex (KTE)

High K, JESD 51-5

3°C/W

23°C/W

19°C/W

TO-220 (KCS)

NOTE 1: Maximum power dissipation is a function of T (max), θ , and T . The maximum allowable power dissipation at any allowable ambient

JA

J

A

temperature is P = (T (max) − T )/θ . Operating at the absolute maximum T of 150°C can affect reliability.

D

J

A

JA

J

recommended operating conditions

MIN

−7

MAX

−25

−30

1.5

UNIT

µA7905C

µA7908C

µA7912C

µA7915C

−10.5

−14.5

−17.5

V

I

Input voltage

V

I

O

Output current

A

T

J

Operating virtual junction temperature

0

125

°C

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

µ

ꢀꢁ ꢂ ꢃ ꢃ ꢄ ꢅꢆ ꢇ ꢅꢄ

ꢈꢅꢉ ꢀꢊ ꢇꢋ ꢅꢌꢋꢍ ꢎꢊꢀꢉ ꢅ ꢆꢅꢉ ꢏ ꢎꢀꢊꢍ ꢆꢄ

ꢐ

SLVS058D − JUNE 1976 − REVISED APRIL 2004

electrical characteristics at specified virtual junction temperature, V = −10 V, I = 500 mA (unless

I

O

otherwise noted)

µA7905C

TYP

†

T

J

PARAMETER

TEST CONDITIONS

UNITS

MIN

MAX

25°C

−4.8

−5

−5.2

‡

Output voltage

I

= 5 mA to 1 A,

V

O

V = −7 V to −20 V,

0°C to 125°C

−4.75

−5.25

I

P ≤ 15 W

V = −7 V to −25 V

12.5

4

50

15

I

Input regulation

Ripple rejection

Output regulation

mV

dB

V = −8 V to −12 V

I

V = −8 V to −18 V,

f = 120 Hz

0°C to 125°C

54

60

I

O

I

O

I

O

= 5 mA to 1.5 A

= 250 mA to 750 mA

= 5 mA

15

100

50

mV

5

Temperature coefficient of output voltage

Output noise voltage

Dropout voltage

0°C to 125°C

25°C

−0.4

125

1.1

1.5

0.15

0.08

2.1

mV/°C

µV

f = 10 Hz to 100 kHz

I

O

= 1 A

25°C

V

Bias current

25°C

2

0.5

mA

V = −7 V to −25 V

I

Bias current change

Peak output current

mA

A

I

O

= 5 mA to 1 A

25°C

†

Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output.

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

‡

electrical characteristics at specified virtual junction temperature, V = −11 V, I = 500 mA (unless

I

O

otherwise noted)

µA7906C

†

T

J

PARAMETER

TEST CONDITIONS

UNITS

MIN

TYP

MAX

25°C

−5.75

−6 −6.25

‡

Output voltage

I

= 5 mA to 1 A,

V = −8 V to −21 V,

V

O

I

0°C to 125°C

−5.7

−6.3

P ≤ 15 W

V = −8 V to −25 V

12.5

120

60

I

Input regulation

Ripple rejection

Output regulation

mV

dB

V = −9 V to −13 V

4

60

I

V = −9 V to −19 V,

f = 120 Hz

0°C to 125°C

54

I

O

I

O

I

O

= 5 mA to 1.5 A

= 250 mA to 750 mA

= 5 mA

15

120

60

mV

5

Temperature coefficient of output voltage

Output noise voltage

Dropout voltage

0°C to 125°C

25°C

−0.4

150

1.1

1.5

0.15

0.08

2.1

mV/°C

µV

f = 10 Hz to 100 kHz

= 1 A

I

O

25°C

V

Bias current

25°C

2

1.3

0.5

mA

V = −8 V to −25 V

I

Bias current change

Peak output current

mA

A

I

O

= 5 mA to 1 A

25°C

†

Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output.

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

‡

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

µ

ꢀꢁ ꢂꢃ ꢃ ꢄꢅ ꢆꢇ ꢅ ꢄ

ꢈ ꢅꢉꢀꢊ ꢇ ꢋꢅ ꢌꢋꢍꢎꢊꢀꢉ ꢅ ꢆꢅ ꢉ ꢏꢎꢀꢊꢍ ꢆꢄ

ꢐ

SLVS058D − JUNE 1976 − REVISED APRIL 2004

electrical characteristics at specified virtual junction temperature, V = −14 V, I = 500 mA (unless

I

O

otherwise noted)

µA7908C

TYP

†

T

J

PARAMETER

TEST CONDITIONS

UNITS

MIN

MAX

25°C

−7.7

−8

−8.3

‡

Output voltage

I

= 5 mA to 1 A,

V = −10.5 V to −23 V,

V

O

I

0°C to 125°C

−7.6

−8.4

P ≤ 15 W

V = −10.5 V to −25 V

12.5

4

160

80

I

Input regulation

Ripple rejection

Output regulation

mV

dB

V = −11 V to −17 V

I

V = −11.5 V to −21.5 V, f = 120 Hz

0°C to 125°C

54

60

I

O

I

O

I

O

= 5 mA to 1.5 A

= 250 mA to 750 mA

= 5 mA

15

160

80

mV

5

Temperature coefficient of output voltage

Output noise voltage

Dropout voltage

0°C to 125°C

25°C

−0.6

200

1.1

1.5

0.15

0.08

2.1

mV/°C

µV

f = 10 Hz to 100 kHz

I

O

= 1 A

25°C

V

Bias current

25°C

2

1

mA

V = −10.5 V to −25 V

I

Bias current change

Peak output current

mA

A

I

O

= 5 mA to 1 A

0.5

25°C

†

Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output.

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

‡

electrical characteristics at specified virtual junction temperature, V = −19 V, I = 500 mA (unless

I

O

otherwise noted)

µA7912C

†

T

J

PARAMETER

TEST CONDITIONS

UNITS

MIN

TYP

MAX

25°C

−11.5

−12 −12.5

‡

Output voltage

I

= 5 mA to 1 A,

V = −14.5 V to −27 V,

V

O

I

0°C to 125°C −11.4

−12.6

P ≤ 15 W

V = −14.5 V to −30 V

5

3

80

30

I

Input regulation

Ripple rejection

Output regulation

mV

dB

V = −16 V to −22 V

I

V = −15 V to −25 V, f = 120 Hz

0°C to 125°C

54

60

I

O

I

O

I

O

= 5 mA to 1.5 A

= 250 mA to 750 mA

= 5 mA

15

200

75

mV

5

Temperature coefficient of output voltage

Output noise voltage

Dropout voltage

0°C to 125°C

25°C

−0.8

300

1.1

2

mV/°C

µV

f = 10 Hz to 100 kHz

= 1 A

I

O

25°C

V

Bias current

25°C

3

0.5

mA

V = −14.5 V to −30 V

0.04

0.06

2.1

I

Bias current change

Peak output current

mA

A

I

O

= 5 mA to 1 A

25°C

†

Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output.

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

‡

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

µ

ꢀꢁ ꢂ ꢃ ꢃ ꢄ ꢅꢆ ꢇ ꢅꢄ

ꢈꢅꢉ ꢀꢊ ꢇꢋ ꢅꢌꢋꢍ ꢎꢊꢀꢉ ꢅ ꢆꢅꢉ ꢏ ꢎꢀꢊꢍ ꢆꢄ

ꢐ

SLVS058D − JUNE 1976 − REVISED APRIL 2004

electrical characteristics at specified virtual junction temperature, V = −23 V, I = 500 mA (unless

I

O

otherwise noted)

µA7915C

TYP

†

T

J

PARAMETER

TEST CONDITIONS

UNITS

MIN

MAX

25°C

−14.4

−15

−15.6

‡

Output voltage

I

= 5 mA to 1 A, V = −17.5 V to −30 V,

V

O

I

0°C to 125°C −14.25

−15.75

P ≤ 15 W

V = −17.5 V to −30 V

5

3

100

50

I

Input regulation

Ripple rejection

Output regulation

mV

dB

V = −20 V to −26 V

I

V = −18.5 V to −28.5 V, f = 120 Hz

0°C to 125°C

54

60

I

O

I

O

I

O

= 5 mA to 1.5 A

= 250 mA to 750 mA

= 5 mA

20

300

150

mV

8

Temperature coefficient of output voltage

Output noise voltage

Dropout voltage

0°C to 125°C

25°C

−1

mV/°C

µV

f = 10 Hz to 100 kHz

375

1.1

2

I

O

= 1 A

25°C

V

Bias current

25°C

3

0.5

mA

V = −17.5 V to −30 V

0.04

0.06

2.1

I

Bias current change

Peak output current

mA

A

I

O

= 5 mA to 1 A

25°C

†

Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output.

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

‡

electrical characteristics at specified virtual junction temperature, V = −27 V, I = 500 mA (unless

I

O

otherwise noted)

µA7918C

†

T

J

PARAMETER

TEST CONDITIONS

UNITS

MIN

TYP

MAX

25°C

−17.3

−18 −18.7

‡

Output voltage

I

= 5 mA to 1 A,

V = −21 V to −33 V,

V

O

I

0°C to 125°C −17.1

−18.9

P ≤ 15 W

V = −21 V to −33 V

5

3

360

180

I

Input regulation

Ripple rejection

Output regulation

mV

dB

V = −24 V to −30 V

I

V = −22 V to −32 V, f = 120 Hz

0°C to 125°C

54

60

I

O

I

O

I

O

= 5 mA to 1.5 A

= 250 mA to 750 mA

= 5 mA

30

360

180

mV

10

Temperature coefficient of output voltage

Output noise voltage

Dropout voltage

0°C to 125°C

25°C

−1

mV/°C

µV

f = 10 Hz to 100 kHz

= 1 A

450

1.1

2

I

O

25°C

V

Bias current

25°C

3

1

mA

V = −21 V to −33 V

0.04

0.06

2.1

I

Bias current change

Peak output current

mA

A

I

O

= 5 mA to 1 A

0.5

25°C

†

Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output.

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

‡

5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

µ

ꢀꢁ ꢂꢃ ꢃ ꢄꢅ ꢆꢇ ꢅ ꢄ

ꢈ ꢅꢉꢀꢊ ꢇ ꢋꢅ ꢌꢋꢍꢎꢊꢀꢉ ꢅ ꢆꢅ ꢉ ꢏꢎꢀꢊꢍ ꢆꢄ

ꢐ

SLVS058D − JUNE 1976 − REVISED APRIL 2004

electrical characteristics at specified virtual junction temperature, V = −33 V, I = 500 mA (unless

I

O

otherwise noted)

µA7924C

TYP

†

T

J

PARAMETER

TEST CONDITIONS

UNITS

MIN

MAX

25°C

−23

−24

−25

‡

Output voltage

I

= 5 mA to 1 A,

V = −27 V to −38 V,

V

O

I

0°C to 125°C −22.8

−25.2

P ≤ 15 W

V = −27 V to −38 V

5

3

480

240

I

Input regulation

Ripple rejection

Output regulation

mV

dB

V = −30 V to −36 V

I

V = −28 V to −38 V, f = 120 Hz

0°C to 125°C

54

60

I

O

I

O

I

O

= 5 mA to 1.5 A

= 250 mA to 750 mA

= 5 mA

85

480

240

mV

25

Temperature coefficient of output voltage

Output noise voltage

Dropout voltage

0°C to 125°C

25°C

−1

mV/°C

µV

f = 10 Hz to 100 kHz

600

1.1

2

I

O

= 1 A

25°C

V

Bias current

25°C

3

1

mA

V = −27 V to −38 V

0.04

0.06

2.1

I

Bias current change

Peak output current

mA

A

I

O

= 5 mA to 1 A

0.5

25°C

†

Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output.

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

‡

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MECHANICAL DATA

MPFM001E – OCTOBER 1994 – REVISED JANUARY 2001

KTE (R-PSFM-G3)

PowerFLEX PLASTIC FLANGE-MOUNT

0.375 (9,52)

0.365 (9,27)

0.080 (2,03)

0.070 (1,78)

0.360 (9,14)

0.350 (8,89)

0.050 (1,27)

0.040 (1,02)

0.220 (5,59)

NOM

0.010 (0,25) NOM

Thermal Tab

(See Note C)

0.360 (9,14)

0.350 (8,89)

0.295 (7,49)

NOM

0.320 (8,13)

0.310 (7,87)

0.420 (10,67)

0.410 (10,41)

1

3

0.025 (0,63)

0.031 (0,79)

Seating Plane

0.004 (0,10)

0.010 (0,25)

M

0.100 (2,54)

0.200 (5,08)

0.005 (0,13)

0.001 (0,03)

0.041 (1,04)

0.031 (0,79)

0.010 (0,25)

NOM

Gage Plane

3°–6°

0.010 (0,25)

4073375/F 12/00

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice.

C. The center lead is in electrical contact with the thermal tab.

D. Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).

E. Falls within JEDEC MO-169

PowerFLEX is a trademark of Texas Instruments.

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IMPORTANT NOTICE

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enhancements, improvements, and other changes to its products and services at any time and to discontinue

any product or service without notice. Customers should obtain the latest relevant information before placing

orders and should verify that such information is current and complete. All products are sold subject to TI’s terms

and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI

deems necessary to support this warranty. Except where mandated by government requirements, testing of all

parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for

their products and applications using TI components. To minimize the risks associated with customer products

and applications, customers should provide adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,

copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process

in which TI products or services are used. Information published by TI regarding third-party products or services

does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.

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型号：	UA79
厂家：	TEXAS INSTRUMENTS
描述：	1.5A 负电压线性稳压器电源电路线性稳压器IC
文件：	总10页 (文件大小：316K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UA79 [TI]

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