µ
SLVS058F − JUNE 1976 − REVISED FEBRUAR Y 2005
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D3-Terminal Regulators
DOutput Current Up To 1.5 A
DNo External Components
DInternal Thermal Overload Protection
DHigh-Power Dissipation Capability
DInternal Short-Circuit Current Limiting
DOutput Transistor Safe-Area Compensation
description/ordering information
This series of fixed-negative-voltage
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
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
TJVO(NOM)
(V) PACKAGE†ORDERABLE
PART NUMBER TOP-SIDE
MARKING
−15
PowerFLEX (KTE) Reel of 2000 µA7915CKTER µA7915C
−15
TO-220, short shoulder (KCS) Tube of 50 µA7915CKCS µA7915C
−12
PowerFLEX (KTE) Reel of 2000 µA7912CKTER µA7912C
0°C to 125°C
−12 TO-220, short shoulder (KCS) Tube of 50 µA7912CKCS µA7912C
0
°
C to 125
°
C
−8
PowerFLEX (KTE) Reel of 2000 µA7908CKTER µA7908C
−8 TO-220, short shoulder (KCS) Tube of 50 µA7908CKCS µA7908C
−5
PowerFLEX (KTE) Reel of 2000 µA7905CKTER µA7905C
−5 TO-220, short shoulder (KCS) Tube of 50 µA7905CKCS µA7905C
†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Copyright 2005, Texas Instruments Incorporated
! "#$ %!&
% "! "! '! ! !( !
%% )*& % "!+ %! !!$* $%!
!+ $$ "!!&
KTE PACKAGE
(TOP VIEW)
OUTPUT
COMMON
INPUT
INPUT
INPUT
OUTPUT
KCS (TO-220) PACKAGE
(TOP VIEW)
COMMON
INPUT
PowerFLEX is a trademark of Texas Instruments.
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.
µ
SLVS058F − JUNE 1976 − REVISED FEBRUAR Y 2005
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematic
COMMON
OUTPU
T
12 V to 18 V
5 V to 8 V
6.2 V
5 kΩ
20 kΩ
0.2 kΩ
INPUT
All component values are nominal.
absolute maximum ratings over virtual junction temperature range (unless otherwise noted)†
Input voltage, VI −35 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature, TJ 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg −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.
package thermal data (see Note 1)
PACKAGE BOARD θJC θJA
PowerFLEX (KTE) High K, JESD 51-5 3°C/W 23°C/W
TO-220 (KCS) High K, JESD 51-5 3°C/W 19°C/W
NOTE 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 affect reliability.
recommended operating conditions
MIN MAX UNIT
µA7905C −7 −25
VI
Input voltage
µA7908C −10.5 −25
V
V
I
Input voltage
µA7912C −14.5 −25
V
µA7915C −17.5 −25
IOOutput current 1.5 A
TJOperating virtual junction temperature 0 125 °C
µ
SLVS058F − JUNE 1976 − REVISED FEBRUAR Y 2005
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, VI = −10 V, IO = 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ†
µA7905C
UNITS
PARAMETER
TEST CONDITIONS
T
J
†
MIN TYP MAX
UNITS
‡
25°C −4.8 −5 −5.2
Output voltage‡IO = 5 mA to 1 A,
P ≤ 15 W VI = −7 V to −20 V, 0°C to 125°C −4.75 −5.25 V
Input regulation
VI = −7 V to −25 V 12.5 50
mV
Input regulation
VI = −8 V to −12 V 4 15
mV
Ripple rejection VI = −8 V to −18 V, f = 120 Hz 0°C to 125°C 54 60 dB
Output regulation
IO = 5 mA to 1.5 A 15 100
mV
Output regulation
IO = 250 mA to 750 mA 5 50
mV
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C −0.4 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 125 µV
Dropout voltage IO = 1 A 25°C 1.1 V
Bias current 25°C 1.5 2 mA
Bias current change
VI = −7 V to −25 V 0.15 0.5
mA
Bias current change
IO = 5 mA to 1 A 0.08 0.5
mA
Peak output current 25°C 2.1 A
†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, VI = −11 V, IO = 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ†
µA7906C
UNITS
PARAMETER
TEST CONDITIONS
T
J
†
MIN TYP MAX
UNITS
‡
25°C −5.75 −6 −6.25
Output voltage‡IO = 5 mA to 1 A,
P ≤ 15 W VI = −8 V to −21 V, 0°C to 125°C −5.7 −6.3 V
Input regulation
VI = −8 V to −25 V 12.5 120
mV
Input regulation
VI = −9 V to −13 V 4 60
mV
Ripple rejection VI = −9 V to −19 V, f = 120 Hz 0°C to 125°C 54 60 dB
Output regulation
IO = 5 mA to 1.5 A 15 120
mV
Output regulation
IO = 250 mA to 750 mA 5 60
mV
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C −0.4 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 150 µV
Dropout voltage IO = 1 A 25°C 1.1 V
Bias current 25°C 1.5 2 mA
Bias current change
VI = −8 V to −25 V 0.15 1.3
mA
Bias current change
IO = 5 mA to 1 A 0.08 0.5
mA
Peak output current 25°C 2.1 A
†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.
µ
SLVS058F − JUNE 1976 − REVISED FEBRUAR Y 2005
4POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, VI = −14 V, IO = 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ†
µA7908C
UNITS
PARAMETER
TEST CONDITIONS
T
J
†
MIN TYP MAX
UNITS
‡
25°C −7.7 −8 −8.3
Output voltage‡IO = 5 mA to 1 A,
P ≤ 15 W VI = −10.5 V to −23 V, 0°C to 125°C −7.6 −8.4 V
Input regulation
VI = −10.5 V to −25 V 12.5 160
mV
Input regulation
VI = −11 V to −17 V 4 80
mV
Ripple rejection VI = −11.5 V to −21.5 V, f = 120 Hz 0°C to 125°C 54 60 dB
Output regulation
IO = 5 mA to 1.5 A 15 160
mV
Output regulation
IO = 250 mA to 750 mA 5 80
mV
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C −0.6 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 200 µV
Dropout voltage IO = 1 A 25°C 1.1 V
Bias current 25°C 1.5 2 mA
Bias current change
VI = −10.5 V to −25 V 0.15 1
mA
Bias current change
IO = 5 mA to 1 A 0.08 0.5
mA
Peak output current 25°C 2.1 A
†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, VI = −19 V, IO = 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ†
µA7912C
UNITS
PARAMETER
TEST CONDITIONS
T
J
†
MIN TYP MAX
UNITS
‡
25°C −11.5 −12 −12.5
Output voltage‡IO = 5 mA to 1 A,
P ≤ 15 W VI = −14.5 V to −27 V, 0°C to 125°C −11.4 −12.6 V
Input regulation
VI = −14.5 V to −25 V 5 80
mV
Input regulation
VI = −16 V to −22 V 3 30
mV
Ripple rejection VI = −15 V to −25 V, f = 120 Hz 0°C to 125°C 54 60 dB
Output regulation
IO = 5 mA to 1.5 A 15 200
mV
Output regulation
IO = 250 mA to 750 mA 5 75
mV
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 300 µV
Dropout voltage IO = 1 A 25°C 1.1 V
Bias current 25°C 2 3 mA
Bias current change
VI = −14.5 V to −25 V 0.04 0.5
mA
Bias current change
IO = 5 mA to 1 A 0.06 0.5
mA
Peak output current 25°C 2.1 A
†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.
µ
SLVS058F − JUNE 1976 − REVISED FEBRUAR Y 2005
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, VI = −23 V, IO = 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ†
µA7915C
UNITS
PARAMETER
TEST CONDITIONS
T
J
†
MIN TYP MAX
UNITS
‡
25°C −14.4 −15 −15.6
Output voltage‡IO = 5 mA to 1 A,
P ≤ 15 W VI = −17.5 V to −25 V, 0°C to 125°C −14.25 −15.75 V
Input regulation
VI = −17.5 V to −25 V 5 100
mV
Input regulation
VI = −20 V to −25 V 3 50
mV
Ripple rejection VI = −18.5 V to −25 V, f = 120 Hz 0°C to 125°C 54 60 dB
Output regulation
IO = 5 mA to 1.5 A 20 300
mV
Output regulation
IO = 250 mA to 750 mA 8 150
mV
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C −1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 375 µV
Dropout voltage IO = 1 A 25°C 1.1 V
Bias current 25°C 2 3 mA
Bias current change
VI = −17.5 V to −25 V 0.04 0.5
mA
Bias current change
IO = 5 mA to 1 A 0.06 0.5
mA
Peak output current 25°C 2.1 A
†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, VI = −27 V, IO = 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ†
µA7918C
UNITS
PARAMETER
TEST CONDITIONS
T
J
†
MIN TYP MAX
UNITS
‡
25°C −17.3 −18 −18.7
Output voltage‡IO = 5 mA to 1 A,
P ≤ 15 W VI = −21 V to −33 V, 0°C to 125°C −17.1 −18.9 V
Input regulation
VI = −21 V to −33 V 5 360
mV
Input regulation
VI = −24 V to −30 V 3 180
mV
Ripple rejection VI = −22 V to −32 V, f = 120 Hz 0°C to 125°C 54 60 dB
Output regulation
IO = 5 mA to 1.5 A 30 360
mV
Output regulation
IO = 250 mA to 750 mA 10 180
mV
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C −1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 450 µV
Dropout voltage IO = 1 A 25°C 1.1 V
Bias current 25°C 2 3 mA
Bias current change
VI = −21 V to −33 V 0.04 1
mA
Bias current change
IO = 5 mA to 1 A 0.06 0.5
mA
Peak output current 25°C 2.1 A
†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.
µ
SLVS058F − JUNE 1976 − REVISED FEBRUAR Y 2005
6POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, VI = −33 V, IO = 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ†
µA7924C
UNITS
PARAMETER
TEST CONDITIONS
T
J
†
MIN TYP MAX
UNITS
‡
25°C −23 −24 −25
Output voltage‡IO = 5 mA to 1 A,
P ≤ 15 W VI = −27 V to −38 V, 0°C to 125°C −22.8 −25.2 V
Input regulation
VI = −27 V to −38 V 5 480
mV
Input regulation
VI = −30 V to −36 V 3 240
mV
Ripple rejection VI = −28 V to −38 V, f = 120 Hz 0°C to 125°C 54 60 dB
Output regulation
IO = 5 mA to 1.5 A 85 480
mV
Output regulation
IO = 250 mA to 750 mA 25 240
mV
Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C −1 mV/°C
Output noise voltage f = 10 Hz to 100 kHz 25°C 600 µV
Dropout voltage IO = 1 A 25°C 1.1 V
Bias current 25°C 2 3 mA
Bias current change
VI = −27 V to −38 V 0.04 1
mA
Bias current change
IO = 5 mA to 1 A 0.06 0.5
mA
Peak output current 25°C 2.1 A
†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.
PACKAGING INFORMATION
Orderable Device Status (1) Package
Type Package
Drawing Pins Package
Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
UA7905CKC OBSOLETE TO-220 KC 3 None Call TI Call TI
UA7905CKCS ACTIVE TO-220 KCS 3 50 None Call TI Level-NC-NC-NC
UA7905CKTER ACTIVE PFM KTE 3 2000 None Call TI Level-1-220C-UNLIM
UA7908CKC OBSOLETE TO-220 KC 3 None Call TI Call TI
UA7908CKCS ACTIVE TO-220 KCS 3 50 None Call TI Level-NC-NC-NC
UA7908CKTER ACTIVE PFM KTE 3 2000 None Call TI Level-1-220C-UNLIM
UA7912CKC OBSOLETE TO-220 KC 3 None Call TI Call TI
UA7912CKCS ACTIVE TO-220 KCS 3 50 None Call TI Level-NC-NC-NC
UA7912CKTER ACTIVE PFM KTE 3 2000 None Call TI Level-1-220C-UNLIM
UA7915CKC OBSOLETE TO-220 KC 3 None Call TI Call TI
UA7918CKC OBSOLETE TO-220 KC 3 None Call TI Call TI
UA7924CKC OBSOLETE TO-220 KC 3 None Call TI Call TI
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional
product content details.
None: Not yet available Lead (Pb-Free).
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens,
including bromine (Br) or antimony (Sb) above 0.1% of total product weight.
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
PACKAGE OPTION ADDENDUM
www.ti.com 8-Mar-2005
Addendum-Page 1
MECHANICAL DATA
MPFM001E – OCTOBER 1994 – REVISED JANUARY 2001
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
KTE (R-PSFM-G3) PowerFLEX PLASTIC FLANGE-MOUNT
0.360 (9,14)
0.350 (8,89)
0.080 (2,03)
0.070 (1,78)
0.010 (0,25) NOM
0.040 (1,02)
Seating Plane
0.050 (1,27)
0.001 (0,03)
0.005 (0,13)
0.010 (0,25)
NOM
Gage Plane
0.010 (0,25)
0.031 (0,79)
0.041 (1,04)
4073375/F 12/00
NOM
3
1
0.350 (8,89)
0.220 (5,59)
0.360 (9,14)
0.295 (7,49)
NOM 0.320 (8,13)
0.310 (7,87)
0.025 (0,63)
0.031 (0,79)
Thermal Tab
(See Note C)
0.004 (0,10)
M
0.010 (0,25)
0.100 (2,54)
3°–6°
0.410 (10,41)
0.420 (10,67)
0.200 (5,08)
0.365 (9,27)
0.375 (9,52)
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.
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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
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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
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