www.ti.com
15
7
6
16
V
IN
REFERENCE
V
REF
+5V TO ALL
INTERNAL
R
T
C
T
OSC
(RAMP)
3
OSC OUT
Q
Q
R
+5V
12
11
C
A
E
A
13
14
C
B
E
B
9
+5V
5
4
–SENSE
+SENSE
C L
COMPENSATION
10k
1k
10
8
GROUND
+
–
+5V
E A
1
2
INV INPUT
NI INPUT
COMPARATOR
SHUTDOWN
ADVANCED REGULATING PULSE WIDTH MODULATORS
FEATURES DESCRIPTION
• Complete PWM Power Control Circuitry
• Uncommitted Outputs for Single-Ended or
Push-Pull Applications
• Low Standby Current . . . 8 mA Typical
• Interchangeable With SG1524, SG2524 and
SG3524, Respectively
UC1524
UC2524
UC3524
SLUS180E – NOVEMBER 1999 – REVISED OCTOBER 2005
The UC1524, UC2524 and UC3524 incorporate on a
single monolithic chip all the functions required for the
construction of regulating power supplies, inverters or
switching regulators. They can also be used as the
control element for high-power-output applications.
The UC1524 family was designed for switching
regulators of either polarity, transformer-coupled
dc-to-dc converters, transformerless voltage doublers
and polarity converter applications employing fixedfrequency, pulse-width modulation techniques. The
dual alternating outputs allow either single-ended or
push-pull applications. Each device includes an
on-chip reference, error amplifier, programmable
oscillator, pulse-steering flip-flop, two uncommitted
output transistors, a high-gain comparator, and
current-limiting and shut-down circuitry. The UC1524
is characterized for operation over the full military
temperature range of –55 ° C to 125 ° C. The UC2524
and UC3524 are designed for operation from –25 ° C
to 85 ° C and 0 ° C to 70 ° C, respectively.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
BLOCK DIAGRAM
Copyright © 1999–2005, Texas Instruments Incorporated
www.ti.com
+
–
+
–
OSCILLATOR
S/D
REFERENCE
REGULATOR
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
ERROR
AMP
CURRENT
AMP
V
REF
V
IN
E
B
C
B
C
A
E
A
S/D COMP
INV INPUT
NON INV
INPUT
OSC OUT
CL
SENSE(+)
CL
SENSE (–-)
R
T
GND
C
T
UC1524
UC2524
UC3524
SLUS180E – NOVEMBER 1999 – REVISED OCTOBER 2005
CONNECTION DIAGRAM
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
V
Supply voltage
CC
Collector output current 100 mA
Reference output current 50 mA
Current through CTterminalg –50 mA
Power dissipation
Operating junction temperature range –55 ° C to 150 ° C
Storage temperature range –65 ° C to +150 ° C
(1) All voltage values are with respect to the ground terminal, pin 8.
(2) The reference regulator may be bypassed for operation from a fixed 5 V supply by connecting the V
the supply voltage. In this configuration the maximum supply voltage is 6 V.
(3) Consult packaging section of data book for thermal limitations and considerations of package.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
V
CC
R
T
C
T
Supply voltage 8 40 V
Reference output current 0 20 mA
Current through CTterminal –0.03 –2 mA
Timing resistor 1.8 100 k Ω
Timing capacitor 0.001 0.1 µ F
Operating ambient temperature range UC2524 –25 85 ° C
(1) (2)
(3)
(3)
UC1524 –55 125
UC3524 0 70
TA= 25 ° C
TC= 25 ° C
UNIT
40 V
1000 mW
2000 mW
and reference output pins both to
CC
MIN NOM MAX UNIT
2
www.ti.com
UC1524
UC2524
UC3524
SLUS180E – NOVEMBER 1999 – REVISED OCTOBER 2005
ELECTRICAL CHARACTERISTICS
these specifications apply for TA= –55 ° C to 125 ° C for the UC1524, –25 ° C to 85 ° C for the UC2524, and 0 ° C to 70 ° C for the
UC3524, V
REFERENCE SECTION
Output voltage 4.8 5.0 5.2 4.6 5.0 5.4 V
Line regulation VIN= 8 V to 40 V 10 20 10 30 mV
Load regulation IL= 0 mA to 20 mA 20 50 20 50 mV
Ripple rejection f = 120 Hz, TJ= 25 ° C 66 66 dB
Short circuit current limit V
Temperature stability Over operating temperature range 0.3% 1% 0.3% 1%
Long term stability TJ= 125 ° C, t = 1000 Hrs 20 20 mV
OSCILLATOR SECTION
Maximum frequency CT= 1 nF, RT= 2 k Ω 300 300 kHz
Initial accuracy RTand CTconstant 5% 5%
Voltage stability VIN= 8 V to 40 V, TJ= 25 ° C 1% 1%
Temperature stability Over operating temperature range 5% 5%
Output amplitude Pin 3, TJ= 25 ° C 3.5 3.5 V
Output pulse width CT= 0.01 mfd, TJ= 25 ° C 0.5 0.5 µ s
ERROR AMPLIFIER SECTION
Input offset voltage V
Input bias current V
Open loop voltage gain 72 80 60 80 dB
Common mode voltage TJ= 25 ° C 1.8 3.4 1.8 3.4 V
Common mode rejection ratio TJ= 25 ° C 70 70 dB
Small signal bandwidth AV= 0 dB, TJ= 25 ° C 3 3 MHz
Output voltage TJ= 25 ° C 0.5 3.8 0.5 3.8 V
COMPARATOR SECTION
Duty-cycle % Each output on 0% 45% 0% 45%
Input threshold V
Input bias current 1 1 µ A
CURRENT LIMITING SECTION
Sense voltage Pin 9 = 2 V with error amplifier set for 190 200 210 180 200 220 mV
Sense voltage T.C. 0.2 0.2 mV/ ° C
Common mode voltage V
OUTPUT SECTION (EACH OUTPUT)
Collector-emitter voltage 40 40 V
Collector leakage current V
Saturation voltage IC= 50 mA 1 2 1 2 V
Emitter output voltage VIN= 20 V 17 18 17 18 V
Rise Time RC= 2 k Ω , TJ= 25 ° C 0.2 0.2 µ s
Fall Time RC= 2 k Ω , TJ= 25 ° C 0.1 0.1 µ s
Total standby current (Note) VIN= 40 V 8 10 8 10 mA
= 20 V, and f = 20 kHz, TA= TJ, over operating free-air temperature range (unless otherwise noted)
IN
PARAMETER TEST CONDITIONS UNIT
= 0, TJ= 25 ° C 100 100 mA
REF
= 2.5 V 0.5 5 2 10 mV
CM
= 2.5 V 2 10 2 10 µ A
CM
Zero duty-cycle 1 1
Maximum duty-cycle 3.5 3.5
maximum out, TJ= 25 ° C
TJ= –55 ° C to 85 ° C for the –1 V to 1 V limit –1 1 –1 1
TJ= 25 ° C –0.3 1
= 40 V 0.1 50 0.1 50 µ A
CE
UC1524/UC2524 UC3524
MIN TYP MAX MIN TYP MAX
3
www.ti.com
UC1524
UC2524
UC3524
SLUS180E – NOVEMBER 1999 – REVISED OCTOBER 2005
PRINCIPLES OF OPERATION
The UC1524 is a fixed-frequency pulse-width-modulation voltage regulator control circuit. The regulator
operates at a frequency that is programmed by one
timing resistor (R
establishes a constant charging current for CT. This
results in a linear voltage ramp at CT, which is fed to
the comparator providing linear control of the output
pulse width by the error amplifier. The UC1524
contains an on-board 5 V regulator that serves as a
reference as well as powering the UC1524’s internal
control circuitry and is also useful in supplying
external support functions. This reference voltage is
lowered externally by a resistor divider to provide a
reference within the common-mode range of the error
amplifier or an external reference may be used. The
power supply output is sensed by a second resistor
divider network to generate a feedback signal to the
error amplifier. The amplifier output voltage is then
compared to the linear voltage ramp at CT. The
resulting modulated pulse out of the high-gain
comparator is then steered to the appropriate output
pass transistor (Q
), and one timing capacitor (C
T
or Q2) by the pulse-steering
1
), R
T
flip-flop, which is synchronously toggled by the
oscillator output. The oscillator output pulse also
serves as a blanking pulse to assure both outputs are
never on simultaneously during the transition times.
T
The width of the blanking pulse is controlled by the
valve of CT. The outputs may be applied in a
push-pull configuration in which their frequency is half
that of the base oscillator Note that for buck regulator
topologies, the two outputs can be wire-ORed for an
effective 0-90% duty cycle range. With this
connection, the output frequency is the same as the
oscillator frequency. The output of the error amplifier
shares a common input to the comparator with the
current limiting and shutdown circuitry and can be
overridden by signals from either of these inputs. This
common point is also available externally and may be
employed to control the gain of, or to compensate,
the error amplifier or to provide additional control to
the regulator.
4
www.ti.com
40
30
10
−10
100 1 k 10 k 100 k
Open-Loop Voltage Amplification − dB
60
70
f − Frequency − Hz
90
1 M 10 M
0
20
50
80
RF=
VIN= 20 V
T
J
= 25 C
RF= 1M
RF= 300 k
RF= 100 k
RF= 30 k
RFis Resistance From
Pin 9 to Ground
NOTE: Value of RFBelow 30 kW
Will Began to Limit Maximum Duty-Cycle
10 k
1 k
100
1 2 5 10 20
Osscilator Frequency − Hz
100 k
1 M
50 100
R
T
− Timing Resistor − kW
VIN= 20 V
T
J
= 25 C
CT= 0.001
mF
CT= 0.003
mF
CT= 0.01
mF
CT= 0.003
mF
CT= 0.1
mF
1
0.4
0.1
0.001 0.004 0.01
Output Dead Time −
4
10
0.04 0.1
µ s
CT− Capacitance − F
VIN= 20 V
T
J
= 25 C
NOTE: Dead Time = Blanking Pulse Width
Plus Outplay Delay
2
1.5
0.5
0
0 20 40 60
Collector-To-Emitter Voltage − V
2.5
3.5
Load Current − mA
4
80 100
1
3
VCC= 20 V
TJ= 125 C
TJ= 25 C
TJ= −55 C
UC1524
UC2524
UC3524
SLUS180E – NOVEMBER 1999 – REVISED OCTOBER 2005
TYPICAL CHARACTERISTICS
OPEN-LOOP VOLTRAGE AMPLIFICATION OSCILLATOR FREQUENCY
OF ERROR AMPLIFIER vs
vs TIMING COMPONENTS
FREQUENCY
Figure 1. Figure 2.
OUTPUT DEAD TIME OUTPUT SATURATION VOLTAGE
vs vs
TIMING CAPACITANCE VALUE LOAD CURRENT
Figure 3. Figure 4.
5
www.ti.com
f
1.18
RTC
T
REF
COMP
9
GND
8
1N916
16
5 k
V+
+28 V
V−
1
2
16
6
7
3
10
15
12
11
13
14
4
5
9
9
5 k
R2
5 k
5 k
0.1
mF
5 k
3 k
0.02
mF
500
mF
1.5 k
0.001
mF
50 k
0.1
UC1524
PIC600
+5V, 5A
UC1524
UC2524
UC3524
SLUS180E – NOVEMBER 1999 – REVISED OCTOBER 2005
APPLICATION INFORMATION
OSCILLATOR SYNCHRONOUS OPERATIONS
The oscillator controls the frequency of the UC1524 When an external clock is desired, a clock pulse of
and is programmed by R
approximate formula: oscillator output terminal. The impedance to ground
where
R
is in k Ω
T
C
is in µ F
T
f is in kHz
Practical values of C
T
Practical values of R
k Ω . This results in a frequency range typically from
120 Hz to 500 kHz.
BLANKING
The output pulse of the oscillator is used as a
blanking pulse at the output. This pulse width is
controlled by the value of CT. If small values of C
required for frequency control, the oscillator output
pulse width may still be increased by applying a shunt
capacitance of up to 100 pF from pin 3 to ground. If
still greater dead-time is required, it should be
accomplished by limiting the maximum duty cycle by
clamping the output of the error amplifier. This can
easily be done with the circuit in Figure 5 .
and C
T
according to the approximately 3 V can be applied directly to the
T
fall between 1 nF and 100 nF.
fall between 1.8 k Ω and 100
T
at this point is approximately 2 k Ω . In this
(1)
configuration R
period slightly greater than that of the external clock.
C
must be selected for a clock
T
T
If two or more UC1524 regulators are to operated
synchronously, all oscillator output terminals should
be tied together, all C
terminals connected to single
T
timing capacitor, and the timing resistor connected to
a single RT, terminal.
are
T
The other R
V
REF
the C
Figure 5. Error Amplifier Clamp
terminals can be left open or shorted to
T
. Minimum lead lengths should be used between
terminals.
T
6
Figure 6. Single-Ended LC Switching Regulator Circuit
www.ti.com
1
2
15
INV INPUT
NON INV INPUT
16
6
VREF
RT
7
3
10
12
11
13
4
5
9
CA
EA
CB
EB
CLSENSE(+)
CLSENSE(−)
COMP
8
GND
+
2N4150
2N4150
20T
20T5T5T
CT
SD
OSC OUT
14
5 k
V+
+28 V
VIN
UC1524
1 k
1 W
1 k
1 W
100
100
0.001
mF
500
mF
50 k
0.1 k
1500
mF
5 V
5 A
5 k
2 k
0.1
mF
0.1
mF
5 k
5 k
I
S
V
IN
Osc. OUT
V
REF
V
IN
8-40 V
15
3
16
8 6 7 2 1 9 10 4 5
4
11
13
12
2 k
1 W
2 k
1 W
0.1
R1
C1
RAMP
N.I.
INPUT
INV.
INPUT
COMP
SHUT
Down
CURRENT
LIMET
2 k 2 k
10 k
1 k
1 k
10 k
OUTPUT
UC1524
SLUS180E – NOVEMBER 1999 – REVISED OCTOBER 2005
UC1524
UC2524
UC3524
Figure 7. Push-Pull Transformer Coupled Circuit
Figure 8. Open Loop Test Circuit
7
PACKAGE OPTION ADDENDUM
www.ti.com
17-Dec-2007
PACKAGING INFORMATION
Orderable Device Status
(1)
Package
Type
Package
Drawing
Pins Package
Qty
Eco Plan
UC1524J OBSOLETE CDIP J 16 TBD Call TI Call TI
UC1524J/80937 OBSOLETE CDIP J 16 TBD Call TI Call TI
UC1524J883B OBSOLETE CDIP J 16 TBD Call TI Call TI
UC2524DW ACTIVE SOIC DW 16 40 Green (RoHS &
no Sb/Br)
UC2524DWG4 ACTIVE SOIC DW 16 40 Green (RoHS &
no Sb/Br)
UC2524DWTR ACTIVE SOIC DW 16 2000 Green (RoHS &
no Sb/Br)
UC2524DWTRG4 ACTIVE SOIC DW 16 2000 Green (RoHS &
no Sb/Br)
UC2524J OBSOLETE CDIP J 16 TBD Call TI Call TI
UC2524N ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br)
UC2524NG4 ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br)
UC3524D ACTIVE SOIC D 16 40 Green (RoHS &
no Sb/Br)
UC3524DG4 ACTIVE SOIC D 16 40 Green (RoHS &
no Sb/Br)
UC3524DTR ACTIVE SOIC D 16 2500 Green (RoHS &
no Sb/Br)
UC3524DTRG4 ACTIVE SOIC D 16 2500 Green (RoHS &
no Sb/Br)
UC3524DW ACTIVE SOIC DW 16 40 Green (RoHS &
no Sb/Br)
UC3524DWG4 ACTIVE SOIC DW 16 40 Green (RoHS &
no Sb/Br)
UC3524DWTR ACTIVE SOIC DW 16 2000 Green (RoHS &
no Sb/Br)
UC3524DWTRG4 ACTIVE SOIC DW 16 2000 Green (RoHS &
no Sb/Br)
UC3524J OBSOLETE CDIP J 16 TBD Call TI Call TI
UC3524N ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br)
UC3524NG4 ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br)
(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)
Lead/Ball Finish MSL Peak Temp
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU N / A for Pkg Type
CU NIPDAU N / A for Pkg Type
Call TI Level-2-260C-1 YEAR
Call TI Level-2-260C-1 YEAR
Call TI Level-2-260C-1 YEAR
Call TI Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU N / A for Pkg Type
CU NIPDAU N / A for Pkg Type
(3)
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
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
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry 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.
17-Dec-2007
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
TAPE AND REEL INFORMATION
11-Mar-2008
*All dimensions are nominal
Device Package
UC2524DWTR SOIC DW 16 2000 330.0 16.4 10.85 10.8 2.7 12.0 16.0 Q1
UC3524DTR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1
UC3524DWTR SOIC DW 16 2000 330.0 16.4 10.85 10.8 2.7 12.0 16.0 Q1
Type
Package
Drawing
Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0 (mm) B0 (mm) K0 (mm) P1
(mm)W(mm)
Pin1
Quadrant
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
11-Mar-2008
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
UC2524DWTR SOIC DW 16 2000 346.0 346.0 33.0
UC3524DTR SOIC D 16 2500 346.0 346.0 33.0
UC3524DWTR SOIC DW 16 2000 346.0 346.0 33.0
Pack Materials-Page 2
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, 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. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.
TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.
TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.
Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products Applications
Amplifiers amplifier.ti.com Audio www.ti.com/audio
Data Converters dataconverter.ti.com Automotive www.ti.com/automotive
DSP dsp.ti.com Broadband www.ti.com/broadband
Clocks and Timers www.ti.com/clocks Digital Control www.ti.com/digitalcontrol
Interface interface.ti.com Medical www.ti.com/medical
Logic logic.ti.com Military www.ti.com/military
Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork
Microcontrollers microcontroller.ti.com Security www.ti.com/security
RFID www.ti-rfid.com Telephony www.ti.com/telephony
RF/IF and ZigBee® Solutions www.ti.com/lprf Video & Imaging www.ti.com/video
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2008, Texas Instruments Incorporated
Wireless www.ti.com/wireless
Loading...