TEXAS INSTRUMENTS UC1525A, UC1527A, UC2525A, UC2527A, UC3525A Technical data

15
12

3
6
5
7

9
1
2
8

10

Reference

Regulator

16 4

OSC

50 m

A

13

14

11

13

11

14

COMP

S

S

R

+VIN

GROUND

SYNC

RT

CT

DISCHARGE

COMPENSATION

INV INPUT

NI INPUT

SOFTSTART

SHUTDOWN OUTPUT B

OUTPUT A

VC

OUTPUT B

OUTPUT A

VC

NOR

NOR

OR

OR

V

REF

Error
Amp

VREF

OSC
OUT

To Internal

Circutry

UVLO

Lockout

Flip

Flop

PWM

Latch

3 kW

5 kW

UC1527A

Output Stage

UC1525A

Output Stage

www.ti.com

REGULATING PULSE WIDTH MODULATORS

1

FEATURES

• 8-V to 35-V Operation

• 5.1-V Reference Trimmed to 1%

• 100-Hz to 500-kHz Oscillator Range

• Separate Oscillator Sync Terminal

• Adjustable Deadtime Control

• Internal Soft-Start

• Pulse-by-Pulse Shutdown

• Input Undervoltage Lockout With Hysteresis

• Latching PWM to Prevent Multiple Pulses

• Dual Source/Sink Output Drivers

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

DESCRIPTION

The UC1525A/1527A series of pulse width modulator
integrated circuits are designed to offer improved
performance and lowered external parts count when
used in designing all types of switching power
supplies. The on-chip +5.1-V reference is trimmed to
1% and the input common-mode range of the error
amplifier includes the reference voltage, eliminating
external resistors. A sync input to the oscillator allows
multiple units to be slaved or a single unit to be
synchronized to an external system clock. A single
resistor between the C
provides a wide range of dead-time adjustment.
These devices also feature built-in soft-start circuitry
with only an external timing capacitor required. A
shutdown terminal controls both the soft-start circuitry
and the output stages, providing instantaneous turn
off through the PWM latch with pulsed shutdown, as
well as soft-start recycle with longer shutdown
commands.

and the discharge terminals

T

BLOCK DIAGRAM

1

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.

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 © 1997 – 2008, Texas Instruments Incorporated

www.ti.com

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.

DESCRIPTION (continued)

These functions are also controlled by an undervoltage lockout which keeps the outputs off and the soft-start
capacitor discharged for sub-normal input voltages. This lockout circuitry includes approximately 500 mV of
hysteresis for jitter- free operation. Another feature of these PWM circuits is a latch following the comparator.
Once a PWM pulse has been terminated for any reason, the outputs will remain off for the duration of the period.
The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking
in excess of 200 mA. The UC1525A output stage features NOR logic, giving a LOW output for an OFF state. The
UC1527A utilizes OR logic which results in a HIGH output level when OFF.

ABSOLUTE MAXIMUM RATINGS

+V

IN

V

C

(1) Values beyond which damage may occur.
(2) See Thermal Characteristics table.

Supply voltage 40
Collector supply voltage 40
Logic inputs – 0.3 to +5.5
Analog inputs – 0.3 to +V
Output current, source or sink 500
Reference output current 50 mA
Oscillator charging current 5
Power dissipation at TA= +25 ° C
Power dissipation at TC= +25 ° C
Operating junction temperature – 55 to 150
Storage temperature range – 65 to 150 ° C
Lead temperature (soldering, 10 seconds) 300

(1)

(2)
(2)

RECOMMENDED OPERATING CONDITIONS

+V

IN

V

C

(1) Range over which the device is functional and parameter limits are assured.

Input voltage 8 35
Collector supply voltage 4.5 35
Sink/source load current (steady state) 0 100
Sink/source load current (peak) 0 400 mA
Reference load current 0 20
Oscillator frequency range 100 400 Hz
Oscillator timing resistor 2 150 k Ω
Oscillator timing capacitorm 0.001 0.01 µ F
Dead time resistor range 0 500 Ω

Operating ambient temperature range UC2525A, UC2527A – 25 85 ° C

UCx52xA UNIT

V

IN

1000
2000

(1)

MIN MAX UNIT

UC1525A, UC1527A – 55 125

UC3525A, UC3527A 0 70

mW

V

2 Submit Documentation Feedback Copyright © 1997 – 2008, Texas Instruments Incorporated

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

www.ti.com

THERMAL CHARACTERISTICS

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

INV Input

NI Input

SYNC

OSC Output

C

T

R

T

Discharge

Soft Start

V

REF

+V

IN

Output B
V

C

Ground
Output A
Shutdown
Compensation

J or N PACKAGE

(TOP VIEW)

3 2 1 20 19

9 10 11 12 13

4
5
6
7
8

18
17
16
15
14

Output B
V

C

NC
Ground
Output A

SYNC

OSC Output

NC

C

T

R

T

Q AND L PACKAGES

(TOP VIEW)

NI Input

INV Input

NC

Compensation

Shutdown

V

+V

Discharge

Soft Start

NC

IN

REF

NC − No internal connection

over operating free-air temperature range (unless otherwise noted)

PACKAGE θ

J-16 80-120 28

N-16 90 45

DW-16 45-90 25

PLCC-20 43-75 34

LCC-20 70-80 20

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

JA

θ

JC

CONNECTION DIAGRAMS

PLCC-20, LCC-20

DIL-16

Copyright © 1997 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 3

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

www.ti.com

f +

1

C

T

ǒ

0.7RT) 3R

D

Ǔ

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

ELECTRICAL CHARACTERISTICS

+V

= 20 V, and over operating temperature, unless otherwise specified, TA= T

IN

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

REFERENCE

Output voltage TJ= 25 ° C V

UC152xA, UC252xA 5.05 5.10 5.15

Line regulationg VIN= 8 V to 35 V 10 20
Load regulationg IL= 0 mA to 20 mA 20 50 mV
Temperature stability

Total output variation

Shorter circuit current V
Output noise Voltage
Long term stability

OSCILLATOR SECTION

Initial accuracy

Voltage stability

Temperature stability

(1)

(1)

(1)

(1)

(2)

(1) (2)

(1) (2)

(1)

Over operating range 20 50

Line, load, and temperature V

= 0, TJ= 25 ° C 80 100 mA

REF

UC152xA, UC252xA 5.0 5.2

10 Hz ≤ 10 kHz, TJ= 25 ° C 40 200 µ Vrms
TJ= 125 ° C 20 50 mV

TJ= 25 ° C 2% 6%

VIN= 8 V to 35 V

UC152xA, UC252xA 0.3% 1%

Over operating range 3% 6%
Minimum frequency RT= 200 k Ω , CT= 0.1 µ F 120 Hz
Maximum frequency RT= 2 k Ω , CT= 470 pF 400 kHz
Current mirror IRT= 2 mA 1.7 2.0 2.2 mA
Clock amplitude
Clock width
Syncronization threshold

(1) (2)

(1) (2)

(1) (2)

TJ= 25 ° C 0.3 0.5 1.0 µ s

Sync input current Sync voltage = 3.5 V 1.0 2.5 mA

ERROR AMPLIFIER SECTION (V

Input offset voltage

= 5.1 V)

CM

UC152xA, UC252xA 0.5 5 mV

Input bias current 1 10
Input offset current 1
DC open loop gain RL≥ 10 M Ω 60 75 dB
Gain-bandwidth product
DC transconductanc

(1)

(1) (3)

AV= 0 dB, TJ= 25 ° C 1 2 MHz

TJ= 25 ° C, 30 k Ω ≤ RL≤ 1 M Ω 1.1 1.5 mS
Low-level output voltage 0.2 0.5
High-level output voltage 3.8 5.6
Common mode rejection V

= 1.5 V to 5.2 V 60 75

CM

Supply voltage rejection VIN= 8 V to 35 V 50 60

(1) These parameters, although ensured over the recommended operating conditions, are not 100% tested in production.
(2) Tested at f

OSC

= 40 kHz (R

= 3.6 k Ω , CT= 0.01 µ F, RD= 0. Approximate oscillator frequency is defined by:

T

J

UC352xA 5.0 5.1 5.2

UC352xA 4.95 5.25

UC352xA 1% 2%

3.0 3.5 V

1.2 2.0 2.8 V

UC352xA 2 10

µ A

V

dB

(3) DC transconductance (gM) relates to DC open-loop voltage gain (AV) according to the following equation: AV= gMRLwhere RLis the

resistance from pin 9 to ground. The minimum gMspecification is used to calculate minimum AVwhen the error amplifier output is
loaded.

4 Submit Documentation Feedback Copyright © 1997 – 2008, Texas Instruments Incorporated

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

www.ti.com

+V

IN

15

Q3

Q4

Q2Q1

1

2

Inv Input

NI Input

200 mA 100 mA

5.8 V

100 W

Comp

9

to PWM
Comparator

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

ELECTRICAL CHARACTERISTICS (continued)

+V

= 20 V, and over operating temperature, unless otherwise specified, TA= T

IN

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

PWM COMPARATOR

Minimum duty-cycle 0%
Maximum duty-cycle 45% 49%

Input threshold

Input bias current

(4)

(4)

Zero duty-cycle 0.7 0.9

Maximum duty-cycle 3.3 3.6

SHUTDOWN

Soft-start current V
Soft-start low level V
Shutdown threshold To outputs, V
Shutdown input current V
Shutdown Delay

(5)

OUTPUT DRIVERS (each output) (V

Low-level output voltage

High-level output voltage

Undervoltage lockout V
VCOFF Current
Rise Time
Fall Time

(6)

(5)

(5)

= 0 V, V

SD

= 2.5 V 0.4 0.7

SD

= 2.5 V 0.4 1.0 mA

SD

V

= 2.5 V, TJ= 25 ° C 0.2 0.5 µ s

SD

= 20 V)

C

I

= 20 mA 0.2 0.4

SINK

I

= 100 mA 1.0 2.0

SINK

I

SOURCE

I

SOURCE

COMP

= 0 V 25 50 80 µ A

SS

= 5.1 V, TJ= 25 ° C 0.6 0.8 1.0

SS

= 20 mA 18 19 V
= 100 mA 17 18

and V

= High 6 7 8

SS

VC= 35 V 200 µ A

CL= 1 nF, TJ= 25 ° C 100 600

CL= 1 nF, TJ= 25 ° C 50 300

TOTAL STANDBY CURRENT

Supply Current VIN= 35 V 14 20 mA

(4) Tested at f
(5) These parameters, although ensured over the recommended operating conditions, are not 100% tested in production.

OSC

= 40 kHz (R

= 3.6 k Ω , CT= 0.01 µ F, RD= 0 Ω .

T

(6) Collector off-state quiescent current measured at pin 13 with outputs low for UC1525A and high for UC1527A.

J

0.05 1.0 µ A

V

V

ns

UC1525A Error Amplifier

Copyright © 1997 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 5

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

www.ti.com

13

+V

IN

Q5

Q4

+V

REF

Q6

Q3Q2Q1

5 kW

10 kW 10 kW

Clock F/F PWM

11
14

Output

2 kW

Q8

Q9

Q7

Q10

Q11

Q6 Ommitted
In UC1527A

+V

C

+V

SUPPLY

Q1

To Output Filter

R2

R1

13

11

14

12

+V

C

A

B

UC1525A

GND

Return

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

PRINCIPLES OF OPERATION AND TYPICAL CHARACTERISTICS

Figure 1. UC1525A Output Circuit (1/2 circuit shown)

For single-ended supplies, the driver outputs are grounded. The V
totem-pole source transistors on alternate oscillator cycles.

6 Submit Documentation Feedback Copyright © 1997 – 2008, Texas Instruments Incorporated

Figure 2. Grounded Driver Outputs For Single-Ended Supplies

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

termainal is switched to ground by the

C

www.ti.com

+15 V

13

11

14

12

D1

D2

Return

30 W

30 W

Q2

Q1

T1

D1, D2: UC3611

+V

C

A

B

UC1525A

GND

Source = VO − V

OH

Sink = V

OL

VIN = 20 V,
TA = 25°C

4

3

2

1

0

0.1 .1 .2 1

Saturation Voltage − V

Output Current, Source or Sink − A

13

11

14

12

Q2

Q1

+V

C

A

B

UC1525A

GND

+V

SUPPLY

Return

R1

C1

R2

C2

R3

T1

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

PRINCIPLES OF OPERATION AND TYPICAL CHARACTERISTICS (continued)

Figure 3. Output Drivers With Low Source Impedance

The low source impedance of the output drivers provides rapid charging of power FET input capacitance while
minimizing external components.

In conventional push-pull bipolar designs, forward base drive is controlled by R1 – R3. Rapid turn-off times for the
power devices are achieved with speed-up capacitors C1 and C2.

Copyright © 1997 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 7

Figure 4. UC1525A Output Saturation Characteristics.

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

Figure 5. Conventional Push-Pull Bipolar Design

www.ti.com

13

12

Q2

Q1

+V

C

A

B

UC1525A

GND

+V

SUPPLY

Return

R1

30 W

R2

C1

T1

11

14

D1, D2: UC3611

C2

V

REF

R

T

C

T

16

Q1

Q5 Q8

7.4 kW

Q36

5

Q6 Q9

2 kW

14 kW

Ramp To PWM

Blanking To Outout

Q12

Q10 Q11

Q13

3 kW 250 kW

Clock

Q14

25 kW

1 kW

2 kW

400 mA

5 pF

Q7

Q4

Q2

1 kW

3
7

12

SYNC

DISCHARGE

GND

23 kW

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

PRINCIPLES OF OPERATION AND TYPICAL CHARACTERISTICS (continued)

Figure 6. Low Power Transformers

Low power transformers can be driven by the UC1525A. Automatic reset occurs during dead time, when both
ends of the primary winding are switched to ground.

Figure 7. UC1525A Oscillator Schematic

8 Submit Documentation Feedback Copyright © 1997 – 2008, Texas Instruments Incorporated

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

www.ti.com

RD = 0

CT = .01 µF

CT = .02 µF

CT = .05 µF

CT = 0.1 µF

CT = 1 nF

CT = 5 nF

CT = 2 nF

6 5 7

R

T

R

D

C

T

200

100

50

20

10

5

2

− Timing Resistance − kR
T

Ω

1 2 5 10 20 50100 200 1ms 2ms 5ms10ms

Charge Time − ms

500

400

300

200

100

0

0.2 0.5 1 2 5 10 20 50 100 200

− Dead Time Resistance −R
D

Ω

Charge Time − ms

CT = 1 nF
CT = 2 nF
CT = 5 nF

CT = .01 µF

CT = .05 µF
CT = 0.1 µF

CT = .02 µF

125°C

25°C

−55°C

Max RD For a Given RT,
Min RT For a Given R

D

500

400

300

200

100

0

2 4 6 8 10 12

Minimum Recommended R

T

− kW

Maximum recommended RD

RL = ∞

RL = 1 MΩ

RL = 300 kΩ

RL = 100 kΩ

RL = 30 kΩ

Voltage Gain

Phase

80

60

40

20

0

100 1 k 10 k 100 k 1 M 10 M

f − Frequency − Hz

Open-Loop Voltage Gain − dB

−360°

−270°

−180°

Open-Loop Phase

VIN = 20 V,
TJ = 25°C

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

PRINCIPLES OF OPERATION AND TYPICAL CHARACTERISTICS (continued)

Shutdown Options (See Block Diagram)

Since both the compensation and soft-start terminals (Pins 9 and 8) have current source pull-ups, either can
readily accept a pull-down signal which only has to sink a maximum of 100 A to turn off the outputs. This is
subject to the added requirement of discharging whatever external capacitance may be attached to these pins.

An alternate approach is the use of the shutdown circuitry of Pin 10 which has been improved to enhance the
available shutdown options. Activating this circuit by applying a positive signal on Pin 10 performs two functions;
the PWM latch is immediately set providing the fastest turn-off signal to the outputs; and a 150-A current sink
begins to discharge the external soft-start capacitor. If the shutdown command is short, the PWM signal is
terminated without significant discharge of the soft-start capacitor, thus, allowing, for example, a convenient
implementation of pulse-by-pulse current limiting. Holding Pin 10 high for a longer duration, however, will
ultimately discharge this external capacitor, recycling slow turn-on upon release.

Pin 10 should not be left floating as noise pickup could conceivably interrupt normal operation. All transitions of
the voltage on pin 10 should be within the time frame of one clock cycle and not repeated at a frequency higher
than 10 clock cycles.

Oscillator Charge Time vs RTand C

Figure 8. Figure 9.

Maximum Value RDvs Minimum Value R

T

T

Error Amplifier Voltage Gain and Phase vs Frequency

Oscillator Discharge Time vs RTC

T

Copyright © 1997 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 9

Figure 10. Figure 11.

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

www.ti.com

V

REF

PWM

Adj.

3 kW

10 kW

1.5 kW

3.6 kW
.009

0.1
1 = VOS

2 = I(+)
3 = I(−)

V/I Meter

−

+

Clock

SYNC

R

T

Deadtime

Ramp

100 W

.001

Comp

10 kW

0.1

0.1

Oscillator

16

4

3

6

7
5

9

1

2

15

13

11

14

12

8

10

Reference
Regulator

Flip/
Flop

PWM

E/A

D.U.T.

A

B

+V

IN

0.1
V

C

0.1

Out A

1 k, 1 W

(2)

Out B

Gnd

Soft-Start

5 mF

50 mA

5 kW

5 kW

5 kW

V

REF

Shutdown

1

2

3

1

2

3

3

1

2

1

2

3

UC1525A, UC1527A
UC2525A, UC2527A
UC3525A, UC3527A

SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008

PRINCIPLES OF OPERATION AND TYPICAL CHARACTERISTICS (continued)

Figure 12. Lab Test Fixture

10 Submit Documentation Feedback Copyright © 1997 – 2008, Texas Instruments Incorporated

Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A

PACKAGE MATERIALS INFORMATION

www.ti.com

TAPE AND REEL INFORMATION

11-Mar-2008

*All dimensions are nominal

Device Package

Type

UC2525ADWTR SOIC DW 16 2000 330.0 16.4 10.85 10.8 2.7 12.0 16.0 Q1
UC3525ADWTR SOIC DW 16 2000 330.0 16.4 10.85 10.8 2.7 12.0 16.0 Q1

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)

UC2525ADWTR SOIC DW 16 2000 346.0 346.0 33.0
UC3525ADWTR 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