Texas Instruments 7704001HA Datasheet

µA79M00 SERIES

NEGATIVE-VOLTAGE REGULATORS

SLVS060E – JUNE 1976 – REVISED APRIL 2000

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

3-Terminal Regulators

D

Output Current up to 500 mA

D

No External Components

D

High Power-Dissipation Capability

D

Internal Short-Circuit Current Limiting

D

Output Transistor Safe-Area Compensation

D

Direct Replacements for Fairchild µA79M00
Series

description

This series of fixed-negative-voltage monolithic
integrated-circuit voltage regulators is designed
to complement the µA78M00 series in 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 delivers up to
500 mA of output current. The internal
current-limiting and thermal-shutdown features of
these regulators make them essentially 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.

The µA79M00C series is characterized for
operation over the virtual junction temperature
range of 0°C to 125°C.

AVAILABLE OPTIONS

PACKAGED DEVICES

T

J

V

O(NOM)

(V)

HEAT-SINK

MOUNTED

(KC)

PLASTIC FLANGE

MOUNTED

(KTP)

CHIP

FORM

(Y)

–5 µA79M05CKC µA79M05CKTP µA79M05Y
–6 — µA79M06CKTP µA79M06Y
–8 — µA79M08CKTP µA79M08Y

0°C to 125°C

–12 — µA79M12CKTP µA79M12Y
–15 — µA79M15CKTP µA79M15Y
–20 — µA79M20CKTP µA79M20Y
–24 — µA79M24CKTP µA79M24Y

The KTP package also is available in tape and reel. Add the suffix R to device type (e.g.,
µA79M05CKTPR). Chip forms are tested at 25°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  2000, 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 INPUT terminal is in electrical contact with
the mounting base.

TO-220AB

KTP PACKAGE

(TOP VIEW)

OUTPUT
INPUT
COMMON

OUTPUT

INPUT

COMMON

OUTPUT
INPUT
COMMON

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

OUTPUT

INPUT

COMMON

µA79M00 SERIES
NEGATIVE-VOLTAGE REGULATORS

SLVS060E – JUNE 1976 – REVISED APRIL 2000

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

schematic

4.5 kΩ
to 6.3 kΩ

COMMON

OUTPUT

INPUT

0.1 Ω

0.2 Ω

1.7 kΩ
to 18 kΩ

Resistor values shown are nominal.

µA79M00 SERIES

NEGATIVE-VOLTAGE REGULATORS

SLVS060E – JUNE 1976 – REVISED APRIL 2000

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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

†

µA79MxxC UNIT

p

µA79M20C, µA79M24C –40

Input voltage

All others –35

V

p

KC package 22

°

Package thermal impedance, θ

JA

(see Notes 1 and 2)

KTP package 28

°C/W

Operating free-air, TA; case, TC; or virtual junction, TJ, temperature range 0 to 150 °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),

θ

JA

, and TA. The maximum allowable power dissipation at any allowable

ambient temperature is PD = (TJ(max) – TA)/

θ

JA

. Operating at the absolute maximum TJ of 150°C can affect 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.

recommended operating conditions

MIN MAX UNIT

µA79M05C –7 –25
µA79M06C –8 –25
µA79M08C –10.5 –25

Input voltage, V

I

µA79M12C –14.5 30

V

µA79M15C –17.5 –30
µA79M20C –23 –35
µA79M24C –27 –38

Output current, I

O

500 mA

Operating virtual junction temperature, T

J

0 125 °C

µA79M00 SERIES
NEGATIVE-VOLTAGE REGULATORS

SLVS060E – JUNE 1976 – REVISED APRIL 2000

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics at specified virtual junction temperature, VI = –10 V , IO = 350 mA, TJ = 25°C
(unless otherwise noted)

µA79M05C

PARAMETER

TEST CONDITIONS

†

MIN TYP MAX

UNIT

p

–4.8 –5 –5.2

Output voltage

V

I

= –

7 V to –25 V

,

I

O

=

5 mA to 350 mA

TJ = 0°C to 125°C –4.75 –5.25

V

p

VI = –7 V to –25 V 7 50

Input voltage regulation

VI = –8 V to –18 V 3 30

mV

pp

V

= –8 V to –18 V,

IO = 100 mA, TJ = 0°C to 125°C 50

Ripple rejection

I

,

f = 120 Hz

IO = 300 mA 54 60

dB

p

IO = 5 mA to 500 mA 75 100

Output voltage regulation

IO = 5 mA to 350 mA 50

mV

T emperature coef ficient
of output voltage

IO = 5 mA, TJ = 0°C to 125°C –0.4 mV/°C

Output noise voltage f = 10 Hz to 100 kHz 125 µV
Dropout voltage 1.1 V
Bias current 1 2 mA

VI = –8 V to –18 V, TJ = 0°C to 125°C 0.4

Bias current change

IO = 5 mA to 350 mA, TJ = 0°C to 125°C 0.4

mA

Short-circuit output current VI = –30 V 140 mA
Peak output current 0.65 A

†

Pulse-testing techniques maintain TJ as close to TA 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.

electrical characteristics at specified virtual junction temperature, VI = –11 V , IO = 350 mA, TJ = 25°C
(unless otherwise noted)

µA79M06C

PARAMETER

TEST CONDITIONS

†

MIN TYP MAX

UNIT

p

–5.75 –6 –6.25

Output voltage

V

I

= –8 V to –25 V,

I

O

= 5 mA to

350 mA

TJ = 0°C to 125°C –5.7 –6.3

V

p

VI = –8 V to –25 V 7 60

Input voltage regulation

VI = –9 V to –19 V 3 40

mV

pp

V

= –9 V to –19 V,

IO = 100 mA, TJ = 0°C to 125°C 50

Ripple rejection

I

,

f = 120 Hz

IO = 300 mA 54 60

dB

p

IO = 5 mA to 500 mA 80 120

Output voltage regulation

IO = 5 mA to 350 mA 55

mV

T emperature coef ficient
of output voltage

IO = 5 mA, TJ = 0°C to 125°C –0.4 mV/°C

Output noise voltage f = 10 Hz to 100 kHz 150 µV
Dropout voltage 1.1 V
Bias current 1 2 mA

VI = –9 V to –25 V, TJ = 0°C to 125°C 0.4

Bias current change

IO = 5 mA to 350 mA, TJ = 0°C to 125°C 0.4

mA

Short-circuit output current VI = –30 V 140 mA
Peak output current 0.65 A

†

Pulse-testing techniques maintain TJ as close to TA 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.