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slvs077d ? april 1977 ? revised february 2003 1 post office box 655303 ? dallas, texas 75265 complete pulse-width modulation (pwm) power-control circuitry uncommitted outputs for single-ended or push-pull applications low standby curren t...8 ma typ interchangeable with industry standard sg2524 and SG3524 description/ordering information the sg2524 and SG3524 incorporate all the functions required in the construction of a regulating power supply, inverter, or switching regulator on a single chip. they also can be used as the control element for high-power-output applications. the sg2524 and SG3524 were designed for switching regulators of either polarity, transformer-coupled dc-to-dc converters, transformerless voltage doublers, and polarity-converter applications employing fixed-frequency, pulse-width modulation (pwm) techniques. the complementary output allows either single-ended or push-pull application. each device includes an on-chip regulator, error amplifier, programmable oscillator, pulse-steering flip-flop, two uncommitted pass transistors, a high-gain comparator, and current-limiting and shutdown circuitry. ordering information t input regulation package ? orderable top-side t a regulation max (mv) package ? orderable part number top-side marking pdip (n) tube of 25 SG3524n SG3524n 0 cto70 c 30 soic (d) tube of 40 SG3524d SG3524 0 c to 70 c 30 soic (d) reel of 2500 SG3524dr SG3524 sop (ns) reel of 2000 SG3524nsr SG3524 pdip (n) tube of 25 sg2524n sg2524n ?25 c to 85 c 20 soic (d) tube of 40 sg2524d sg2524 soic (d) reel of 2500 sg2524dr sg2524 ? package drawings, standard packing quantities, thermal data, symboliztion, and pcb design guidelines are available at www.ti.com/sc/package. copyright ? 2003, texas instruments incorporated 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. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 in? in+ osc out curr lim+ curr lim? rt ct gnd ref out v cc emit 2 col 2 col 1 emit 1 shutdown comp sg2524 ...d or n p ackage SG3524 . . . d, n, or ns package (top view)
slvs077d ? april 1977 ? revised february 2003 2 post office box 655303 ? dallas, texas 75265 functional block diagram t col 2 osc out emit 2 emit 1 col 1 v ref reference regulator comparator oscillator shutdown error amplifier 1 2 9 4 5 curr lim ? curr lim+ gnd 8 10 + ? + ? note a: resistor values shown are nominal. 12 11 13 14 3 in ? in+ comp 1 k ? 10 k ? 15 rt ct ref out 16 6 7 v ref v ref v ref v ref v cc v ref absolute maximum ratings over operating free-air temperature range (unless otherwise noted) ? supply voltage, v cc (see notes 1 and 2) 40 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . collector output current, i cc 100 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . reference output current, i o(ref) 50 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . current through ct terminal ? 5 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operating virtual junction temperature, t j 150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . package thermal impedance, ja (see notes 3 and 4): d package 73 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . n package 67 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . ns package 64 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg ? 65 c 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. all voltage values are with respect to network ground terminal. 2. the reference regulator may be bypassed for operation from a fixed 5-v supply by connecting the v cc and reference output (ref out) pin both to the supply voltage. in this configuration, the maximum supply voltage is 6 v. 3. maximum power dissipation is a function of t j(max) , ja , and t a . the maximum allowable power dissipation at any allowable ambient temperature is p d = (t j(max) ? t a )/ ja . operation at the absolute maximum t j of 150 c can impact reliability. 4. the package thermal impedance is calculated in accordance with jesd 51-7.
slvs077d ? april 1977 ? revised february 2003 3 post office box 655303 ? dallas, texas 75265 recommended operating conditions min max unit v cc supply voltage 8 40 v reference output current 0 50 ma current through ct terminal ? 0.03 ? 2 ma r t timing resistor 1.8 100 k ? c t timing capacitor 0.001 0.1 f t a o p erating free air tem p erature sg2524 ? 25 85 c t a operating free-air temperature SG3524 0 70 c electrical characteristics over recommended operating free-air temperature range, v cc = 20 v, f = 20 khz (unless otherwise noted) reference section parameter test conditions ? sg2524 SG3524 unit parameter test conditions ? min typ ? max min typ ? max unit output voltage 4.8 5 5.2 4.6 5 5.4 v input regulation v cc = 8 v to 40 v 10 20 10 30 mv ripple rejection f = 120 hz 66 66 db output regulation i o = 0 ma to 20 ma 20 50 20 50 mv output voltage change with temperature t a = min to max 0.3% 1% 0.3% 1% short-circuit output current v ref = 0 100 100 ma ? for conditions shown as min or max, use the appropriate value specified under recommended operating conditions. ? all typical values, except for temperature coefficients, are at t a = 25 c standard deviation is a measure of the statistical distribution about the mean, as derived from the formula: n n 1 (x n x ) 2 n 1 oscillator section parameter test conditions ? min typ ? max unit f osc oscillator frequency c t = 0.001 f, r t = 2 k ? 450 khz standard deviation of frequency all values of voltage, temperature, resistance, and capacitance constant 5% ? f frequency change with voltage v cc = 8 v to 40 v, t a = 25 c 1% ? f osc frequency change with temperature t a = min to max 2% output amplitude at osc out t a = 25 c 3.5 v t w output pulse duration (width) at osc out c t = 0.01 f, t a = 25 c 0.5 s ? for conditions shown as min or max, use the appropriate value specified under recommended operating conditions. ? all typical values, except for temperature coefficients, are at t a = 25 c standard deviation is a measure of the statistical distribution about the mean, as derived from the formula: n n 1 (x n x ) 2 n 1
slvs077d ? april 1977 ? revised february 2003 4 post office box 655303 ? dallas, texas 75265 error amplifier section parameter test sg2524 SG3524 unit parameter test conditions ? min typ ? max min typ ? max unit v io input offset voltage v ic = 2.5 v 0.5 5 2 10 mv i ib input bias current v ic = 2.5 v 2 10 2 10 a open-loop voltage amplification 72 80 60 80 db v icr common-mode input voltage range t a = 25 c 1.8 to 3.4 1.8 to 3.4 v cmmr common-mode rejection ratio 70 70 db b 1 unity-gain bandwidth 3 3 mhz output swing t a = 25 c 0.5 3.8 0.5 3.8 v ? for conditions shown as min or max, use the appropriate value specified under recommended operating conditions. ? all typical values, except for temperature coefficients, are at t a = 25 c output section parameter test conditions ? min typ ? max unit v (br)ce collector-emitter breakdown voltage 40 v collector off-state current v ce = 40 v 0.01 50 a v sat collector-emitter saturation voltage i c = 50 ma 1 2 v v o emitter output voltage v c = 20 v, i e = ? 250 a 17 18 v t r turn-off voltage rise time r c = 2 k ? 0.2 s t f turn-on voltage fall time r c = 2 k ? 0.1 s ? for conditions shown as min or max, use the appropriate value specified under recommended operating conditions. ? all typical values, except for temperature coefficients, are at t a = 25 c. comparator section parameter test conditions ? min typ ? max unit maximum duty cycle, each output 45% v inp t threshold oltage at comp zero duty cycle 1 v v it input threshold voltage at comp maximum duty cycle 3.5 v i ib input bias current ? 1 a ? for conditions shown as min or max, use the appropriate value specified under recommended operating conditions. ? all typical values, except for temperature coefficients, are at t a = 25 c. current limiting section parameter test conditions ? min typ ? max unit v i input voltage range (either input) ? 1 to1 v v (sense) sense voltage at t a = 25 c v (in ) v (in ) 50 mv v (comp) 2v 175 200 225 mv temperature coefficient of sense voltage v (in+) ? v (in ? ) 50 mv, v (comp) = 2 v 0.2 mv/ c ? all typical values, except for temperature coefficients, are at t a = 25 c. total device parameter test conditions min typ ? max unit i st standby current v cc = 40 v, in ? , curr lim+, c t , gnd, comp, emit 1, emit 2 grounded, in+ at 2 v, all other inputs and outputs open 8 10 ma ? all typical values, except for temperature coefficients, are at t a = 25 c.
slvs077d ? april 1977 ? revised february 2003 5 post office box 655303 ? dallas, texas 75265 parameter measurement information 0.1 f 2 k ? 10 k ? r t 1 w 2 k ? 8 4 2 1 9 6 7 10 11 14 16 3 12 13 (open) outputs v cc = 8 v to 40 v 15 shutdown c t r t comp in ? in+ curr lim+ col 2 col 1 osc out ref out emit 2 emit 1 gnd sg2524 or SG3524 v cc c t 2 k ? 1 w 2 k ? 2 k ? 10 k ? 1 k ? 5 curr lim ? v ref v ref figure 1. general test circuit 0 v v cc voltage waveforms 90% 10% 10% 90% t r t f test circuit circuit under test output 2 k ? v cc output figure 2. switching times
slvs077d ? april 1977 ? revised february 2003 6 post office box 655303 ? dallas, texas 75265 typical characteristics frequency ? hz ? 10 0 10 20 30 40 50 60 70 80 90 open-loop voltage amplification of error amplifier ? db 10 m 1 m 100 k 10 k 1 k 100 r l is resistance from comp to ground ????? ????? r l = 300 k ? ???? r l = 1 m ? ????? ????? r l = 100 k ? ???? ???? r l = 30 k ? open-loop voltage amplification of error amplifier vs frequency v cc = 20 v t a = 25 c r l = figure 3 1 ? oscillator frequency ? hz r t ? timing resistance ? k ? 20 40 100 70 10 7 4 2 oscillator frequency vs timing resistance v cc = 20 v t a = 25 c 1m 400 k 100 k 40 k 10 k 4 k 1 k 400 100 c t = 0.1 f c t = 0.01 f c t = 0.03 f c t = 0.003 f c t = 0 f osc c t = 0.001 f figure 4 output dead time vs timing capacitance 1 10 4 0.001 0.01 output dead time ? 0.004 0.1 0.04 0.1 0.4 s c t ? timing capacitance ? f figure 5
slvs077d ? april 1977 ? revised february 2003 7 post office box 655303 ? dallas, texas 75265 principles of operation ? the sg2524 is a fixed-frequency pulse-width-modulation (pwm) voltage-regulator control circuit. the regulator operates at a fixed frequency that is programmed by one timing resistor, r t , and one timing capacitor, c t . r t establishes a constant charging current for c t . this results in a linear voltage ramp at c t , which is fed to the comparator, providing linear control of the output pulse duration (width) by the error amplifier. the sg2524 contains an onboard 5-v regulator that serves as a reference, as well as supplying the sg2524 internal regulator control circuitry. the internal reference voltage is divided externally by a resistor ladder network to provide a reference within the common-mode range of the error amplifier as shown in figure 6, or an external reference can be used. the output is sensed by a second resistor divider network and the error signal is amplified. this voltage is then compared to the linear voltage ramp at c t . the resulting modulated pulse out of the high-gain comparator then is steered to the appropriate output pass transistor (q1 or q2) by the pulse-steering flip-flop, which is synchronously toggled by the oscillator output. the oscillator output pulse also serves as a blanking pulse to ensure both outputs are never on simultaneously during the transition times. the duration of the blanking pulse is controlled by the value of c t . the outputs may be applied in a push-pull configuration in which their frequency is one-half that of the base oscillator, or paralleled for single- ended applications in which the frequency is equal to that of the oscillator. the output of the error amplifier shares a common input to the comparator with the current-limiting and shut-down circuitry and can be overridden by signals from either of these inputs. this common point is pinned out externally via the comp pin, which can be employed to either control the gain of the error amplifier or to compensate it. in addition, the comp pin can be used to provide additional control to the regulator. application information ? oscillator the oscillator controls the frequency of the sg2524 and is programmed by r t and c t as shown in figure 4. f 1.30 r t c t where: r t is in k ? c t is in f f is in khz practical values of c t fall between 0.001 f and 0.1 f. practical values of r t fall between 1.8 k ? and 100 k ? . this results in a frequency range typically from 130 hz to 722 khz. blanking the output pulse of the oscillator is used as a blanking pulse at the output. this pulse duration is controlled by the value of c t as shown in figure 5. if small values of c t are required, the oscillator output pulse duration can be maintained by applying a shunt capacitance from osc out to ground. synchronous operation when an external clock is desired, a clock pulse of approximately 3 v can be applied directly to the oscillator output terminal. the impedance to ground at this point is approximately 2 k ? . in this configuration, r t c t must be selected for a clock period slightly greater than that of the external clock. ? throughout these discussions, references to the sg2524 apply also to the SG3524.
slvs077d ? april 1977 ? revised february 2003 8 post office box 655303 ? dallas, texas 75265 application information ? synchronous operation (continued) if two or more sg2524 regulators are operated synchronously, all oscillator output terminals must be tied together. the oscillator programmed for the minimum clock period is the master from which all the other sg2524s operate. in this application, the c t r t values of the slaved regulators must be set for a period approximately 10% longer than that of the master regulator. in addition, c t (master) = 2 c t (slave) to ensure that the master output pulse, which occurs first, has a longer pulse duration and, subsequently, resets the slave regulators. voltage reference the 5-v internal reference can be employed by use of an external resistor divider network to establish a reference common-mode voltage range (1.8 v to 3.4 v) within the error amplifiers (see figure 6), or an external reference can be applied directly to the error amplifier. for operation from a fixed 5-v supply, the internal reference can be bypassed by applying the input voltage to both the v cc and v ref terminals. in this configuration, however, the input voltage is limited to a maximum of 6 v. to negative output voltage ref out 5 k ? r1 to positive output voltage r2 5 k ? ref out + ? + ? 5 k ? 5 k ? r2 r1 v o 2.5 v r1 r2 r1 v o 2.5 v 1 r2 r1 2.5 v 2.5 v figure 6. error-amplifier bias circuits error amplifier the error amplifier is a differential-input transconductance amplifier. the output is available for dc gain control or ac phase compensation. the compensation node (comp) is a high-impedance node (r l = 5 m ? ). the gain of the amplifier is a v = (0.002 ? ? 1 )r l and easily can be reduced from a nominal 10,000 by an external shunt resistance from comp to ground. refer to figure 3 for data. compensation comp, as previously discussed, is made available for compensation. since most output filters introduce one or more additional poles at frequencies below 200 hz, which is the pole of the uncompensated amplifier, introduction of a zero to cancel one of the output filter poles is desirable. this can be accomplished best with a series rc circuit from comp to ground in the range of 50 k ? and 0.001 f. other frequencies can be canceled by use of the formula f 1/rc. ? throughout these discussions, references to the sg2524 apply also to the SG3524.
slvs077d ? april 1977 ? revised february 2003 9 post office box 655303 ? dallas, texas 75265 application information ? shutdown circuitry comp also can be employed to introduce external control of the sg2524. any circuit that can sink 200 a can pull the compensation terminal to ground and, thus, disable the sg2524. in addition to constant-current limiting, curr lim+ and curr lim ? also can be used in transformer-coupled circuits to sense primary current and shorten an output pulse should transformer saturation occur. curr lim ? also can be grounded to convert curr lim+ into an additional shutdown terminal. current limiting a current-limiting sense amplifier is provided in the sg2524. the current-limiting sense amplifier exhibits a threshold of 200 mv 25 mv and must be applied in the ground line since the voltage range of the inputs is limited to 1 v to ? 1 v. caution should be taken to ensure the ? 1-v limit is not exceeded by either input, otherwise, damage to the device may result. foldback current limiting can be provided with the network shown in figure 7. the current-limit schematic is shown in figure 8. v o r s r2 r1 emit 2 emit 1 sg2524 i o(max) 1 r s 200 mv v o r2 r1 r2 i os 200 mv r s curr lim+ curr lim ? 11 14 5 4 figure 7. foldback current limiting for shorted output conditions constant-current source curr lim+ comp c t comparator error amplifier curr lim ? figure 8. current-limit schematic ? throughout these discussions, references to the sg2524 apply also to the SG3524.
slvs077d ? april 1977 ? revised february 2003 10 post office box 655303 ? dallas, texas 75265 application information ? output circuitry the sg2524 contains two identical npn transistors, the collectors and emitters of which are uncommitted. each transistor has antisaturation circuitry that limits the current through that transistor to a maximum of 100 ma for fast response. general there are a wide variety of output configurations possible when considering the application of the sg2524 as a voltage-regulator control circuit. they can be segregated into three basic categories: capacitor-diode-coupled voltage multipliers inductor-capacitor-implemented single-ended circuits transformer-coupled circuits examples of these categories are shown in figures 9, 10, and 11, respectively. detailed diagrams of specific applications are shown in figures 12 ? 15. d1 v i v o v i < v o v i d1 v o v i > v o d1 v i ? v o | +v i | > | ? v o | figure 9. capacitor-diode-coupled voltage-multiplier output stages ? throughout these discussions, references to the sg2524 apply also to the SG3524.
slvs077d ? april 1977 ? revised february 2003 11 post office box 655303 ? dallas, texas 75265 application information ? v i v o v i > v o v i v i < v o v o v i ? vo | +v i | < | ? v o | figure 10. single-ended inductor circuit v o push-pull v o v i flyback ?? v i figure 11. transformer-coupled outputs ? throughout these discussions, references to the sg2524 apply also to the SG3524.
slvs077d ? april 1977 ? revised february 2003 12 post office box 655303 ? dallas, texas 75265 application information ? sg2524 comp . curr lim+ emit 2 col 2 col 1 emit 1 gnd osc out c t r t ref out in+ in ? 0.01 f 0.1 f 5 k ? 5 k ? 2 k ? 50 f ? 5 v 20 ma 1n916 1n916 20 f 1n916 15 k ? v cc = 15 v v cc curr lim ? shutdown + 1 2 16 6 7 10 3 11 12 13 14 4 5 9 8 15 5 k ? + figure 12. capacitor-diode output circuit v cc = 5 v 0.1 f 1 m ? 300 ? 1n916 1n916 20t 200 ? ? 15 v 20 ma 15 v 50 f 50 f 50t 50t tip29a 1 ? 1n916 620 ? 510 ? 2n2222 4.7 f 0.001 f 0.02 f 5 k ? 2 k ? 100 f 5 k ? 5 k ? sg2524 v cc osc out gnd comp curr lim+ emit 2 col 2 col 1 emit 1 curr lim ? c t r t ref out in+ in ? + + shutdown 25 k ? + + 1 2 16 6 7 10 3 11 12 13 14 4 5 9 15 8 input return figure 13. flyback converter circuit ? throughout these discussions, references to the sg2524 apply also to the SG3524.
slvs077d ? april 1977 ? revised february 2003 13 post office box 655303 ? dallas, texas 75265 application information ? input return 0.1 ? 3 k ? 1n3880 500 f 1 a 5 v 0.9 mh tip115 sg2524 v cc osc out gnd v cc = 28 v 0.001 f 50 k ? 5 k ? 3 k ? 0.1 f 0.02 f 5 k ? curr lim+ emit 2 col 2 col 1 emit 1 shut down c t r t ref out in+ in ? curr lim ? comp 1 2 16 6 7 10 3 11 12 13 14 4 5 9 15 8 5 k ? 5 k ? + figure 14. single-ended lc circuit 5 k ? 0.01 f 0.1 f 2 k ? 5 k ? 20 k ? 1500 f 0.1 ? 100 f + ? 5 a 5 v 20t 20t 5t 5t tir101a 1 mh tip31a 100 ? 100 ? tip31a 1w 1 k ? v cc = 28 v gnd osc out v cc sg2524 curr lim+ emit 2 col 2 col 1 emit 1 shut down c t r t ref out in+ in ? curr lim ? comp 1 2 16 6 7 10 3 11 12 13 14 4 5 9 15 8 5 k ? 5 k ? 0.001 f + + 1w 1 k ? figure 15. push-pull transformer-coupled circuit ? throughout these discussions, references to the sg2524 apply also to the SG3524.
packaging information orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish msl peak temp (3) sg2524d active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sg2524de4 active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sg2524dr active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sg2524dre4 active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sg2524j obsolete cdip j 16 tbd call ti call ti sg2524n active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc sg2524ne4 active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc SG3524d active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim SG3524de4 active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim SG3524dr active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim SG3524dre4 active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim SG3524j obsolete cdip j 16 tbd call ti call ti SG3524n active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc SG3524ne4 active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc SG3524nsr active so ns 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim SG3524nsre4 active so ns 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim (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 - the planned eco-friendly classification: pb-free (rohs) 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 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 (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 package option addendum www.ti.com 17-oct-2005 addendum-page 1
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 17-oct-2005 addendum-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 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. 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. 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 interface interface.ti.com digital control www.ti.com/digitalcontrol 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 telephony www.ti.com/telephony video & imaging www.ti.com/video wireless www.ti.com/wireless mailing address: texas instruments post office box 655303 dallas, texas 75265 copyright ? 2005, texas instruments incorporated

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