analog devices fax-an-demand hotline r-. analog ~ devices features :!::1.5% accuracy over line, load and temperature low goo j.1a (typical! quiescent current shutdown current: 1 j.1a (typical! stable with 10 j.1f load capacitor +2.5 v to +15 v operating range fixed output voltage options: 2.s v, 3 v, 3.3 v, 5 v up to 10 a output current so-s package -40c to +s5c ambient temperature range internal gate to source protective clamp current and thermal limiting programmable current limit foldbacl< current limit applications desktop computers handheld instruments cellular telephones battery operated devices solar powered instruments high efficiency linear power supplies battery chargers general description the adp33 10 is a precision voltage regulator controller that can be used with an external power pmos device such as the ndp6020p to form a two chip low dropout linear regulator. the low quiescent current (800 j1a) and the enable feature make this device especially suitable for battery powered systems. the dropout voltage at 1 a is only 70 mv when used with the ndp6020p, allowing operation with minimal headroom and prolonging battery useful life. the adp331 0 can drive a wide range of currents, depending on the external pmos device used. additional features of this device include: high accuracy (:t 1.5%) over line, load and temperature, gate-to-source voltage clamp to protect the external mosfet and foldback current limit. a current limit threshold voltage of 50 mv (typ) allows 50 it!} of board metal trace resistance to provide a 1 a current limit. the adp3310 operates from a wide input voltage range from 2.5 v to 15 v and is available in a small s0-8 package. rev. a information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of analog devices, - page vin 1~~ precision voltage regulator controller adp331 0 i functional block diagram vin en gate adp3310 50mv is vollt gnd rs 5omv ndp6020p )vour + 10~~ on ~ figure 1. typical application circuit one technology way. p.o. box9106, norwood,ma 02062-9106, u.s.a. tel: 781/329-4700 world wide web site: http://www.analog.com fax: 781/326-8703 ie) analog devices, inc" 1999 is gate i'vin adp3310 v ollt 'en gnd obsolete
analog devices fax-on-demand hotline - page adp331 a-specifications (v1n =vout + 1 v. ta =-4o"c to +85"(; ulliess otherwise lioted) specifications subjecl: to ehange without notice. absolute maximum ratings* inputvoltage,vi),! +20v enable input voltage. . . . . . . . . . . . . .. 0.3 v to vi),! + 0.3 v operating junction temperature range. . . -4o"c to + 125c operating temperature range. . . . . . . . . . . -40c to +85c storage temperature range -65c to +150c lead temperature (soldering, 10 see) +300c vapor phase (60 see) +215c infrared(l5see) +220c 8ja(4-layerboard) +121c/w 8ja(2-layerboard +150c/w "this is a stress rating only; operation beyond these limits ean eause the deviee to be pennancntly damaged. caution esd (electrostatic discharge) sensitive device. electrostatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge without detection. although the adp3310 features proprietary esd protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. 'therefore, proper esd precautions are recommended to avoid performance degradation or loss of functionality. -2- rev. a parameter conditions symbol min typ max units olitput voltage accuracy (figure i) vi),! = vout +1 vto 15v ve)j = 2 v, lout = 10 ma to i a vout -1.5 +1.5 % quiescent current shutdown mode vij)j = 0 v ig..'id i 10 ija normal mode vij)j = 2 v, lout = 500 ija ig..'id '800 1000 ija gate to source clamp voltage vout=ov, vi),! = 15v 8 10 v gate drive minimum voltage 0,7 v gate drive current (sink/source) i ma gain ( v gs) 80 db vour current limit ti-ireshold voltage vi),!- vis 40 50 80 mv load regulation lout = 10 ma to i a -10 10 mv line regulation vi),! = vout +1 vto 15v lout = 100 ma -10 10 mv shutdown input voltage vih ve)j 2.0 v vii. 0.4 v shutdown input current ve..."= 0 vto 5.0 v ie..." -10 +10 ija obsolete
analog devices fax-on-demand hotline - page adp3310 pin configuration so-8 *so = small outline. contact the faetory for the availability of other output voltage options from 5 v to 16.5 v. refer to the adp3319 data sheet for 1.8 v and 2.5 v output voltage options. refer to the adp3328 data sheet for adjustable output version. nc = no connect pin so-8 name pin function descriptions is 7 gnd 8 en function cunent sense. connected to the more negative terminal of the sense resistor as well as the power mosfet's source pin. is must be tied to vi).! pin if the current limit feature is not used. no connect. gate drive for the external mosfet. input voltage. this is also the positive terminal connection of the cunent sense resistor. output voltage sense. this pin is connected to the mosfet's drain and directly to the load for optimal load regula- tion. bypass to ground with a 10 fjf or larger capacitor. device ground. this pin should be tied to system ground closest to the load. enable. pulling this pin to a logic high or tying the pin to the input voltage will enable the output. pulling this pin low will disable the regulator output. table i. altemate pmos devices rev. a -3- -~-- -~~ --- ordering guide model output voltage package option* adp3310ar-2.8 2.8 v so-8 adp331oar-3 3v so-8 adp331oar-3.3 3.3v so-8 adp331oar-5 5v so-8 2,6 nc 3 gate 4 vi).! 5 i vout pmos ndp6020p irf7404 si9434dy manufacturer fairchild ir temic rds(o)<) 0.0750 @ vgs = -2.5 v 0.060 @ vgs = -2.7 v 0.060 @ vgs = -2.5 v id continuous @ 25c -27 a@vgs =-4.5v -5.3 a@ vgs = -4.5 v -6.4 a pd @ 25c 75w 1.6 w 2.5w derating factor 0.5 w/oc 0.011 w/oc 1.6 w @ 70c package to-220 so-8 so-8 obsolete
~~aluu devices fax-on-demand hotline - page adp3310-typical performance characteristics (circuit of figure 1) > i !; 3.300 0 > > i !; 3.300 0 > > i !; 3.300 0 > 3.31d 3.3d5 3.295 3.29d d.dd1 d.d1 d.1 d 1d iload - ma 1dd 1ddd figure 2. vout v5. iload win = 5 v) 3.31d 3.3d5 3.295 3.29d 3.5 5.5 7.5 9.5 11.5 vin-v 13.5 15.5 figure 3. vout vs. v/n (lload = 1 a) 3.31d 3.3d5 3.295 3.29d 3.7 4 4.5 5 7 9 vin-v 11 13 15 figure 4. vout v5. v,n (lload = 10 mal -4- 1.6 1.4 1.2 1.d ct e i d.8 0 z .; d.6 d.4 d.2 d 3.5 11.5 13.5 5.5 7.5 9.5 vin-v 15.5 figure 5. ignd v5. vin (lload = 10 mal 2.d 1.8 1.6 1.4 1.2 ~ i 1.d 0 z ~ d.8 d.6 d.4 d.2 d 3.5 rev. a i vin-5v - i iload -1a i i - i--- i-- ii 1 iujad - 1 dma iload 1-1dma 1 7 17 / iload-1a ./ / 5.5 7.5 9.5 11.5 13.5 15.5 vin-v figure 6. 'and vs. v/n (lwad = 1 a) 1.2 i,. 5v 1.1 1.d d.9 i 0 1> d.8 d.7 d.6 d.5 d.dd1 d.d1 d.1 1 1d 1dd 1ddd it.oad - ma figure 7. ignd v5. iload (v/n = 5 v) obsolete
analog devices fax-on-demand hotline - page adp3310 1.5 1a 1.3 1.2 ~ 1.1 i 1.0 c z ,j;> 0.9 0.8 0.7 0.6 0.5 -40 0 20 40 temperature - c 60 80 -20 figure 8. quiescent current vs. temperature 3.5 3.0 2.5 > 2.0 i 5 ~ 1.5 1.0 0.5 0 0 2.0 2.8 5.0 vin-v 2.8 2.0 0 figure 9. power-upjpower-down 5m&ldlv figure 10. line transient response-(1o fj-f load) rev. a ::- i !5 3.300 0 > c 0? ~ -5- 3.400 3.200 1a 10.;;a 250 ",&ldlv figure 11. load transient response 0 an -10 ..,20 -30 '" .., i ii:: -40 ii:: '" "- -50 -60 -70 -80 l 1 100 1k 10k frequency - hz 100k 1m 10 figure 12. ripple rejection 4.0 3.5 3.0 2.5 > i 2.0 i f- vin-5v iload - 1 oma -- i i -[ r iload -10ma / /v " / '" \. 7.0 > i ii: > 5.5 3.32 > i !; 3.30 0 > 3.28 ii '-cad -1oma -cl-10 l i \ 1 -i vin - 5v '- cl .10 vin -'5v rcs - 0.50 ./ /" /' / / obsolete
analog devices fax-on~demand hotline adp331 0 applica non information the adp3310 is very easy to use. a p-channel power mospet and a small capacitor on the output is all that is needed to form an inexpensive ultralow dropout regulator. the advantage of using the adp331o controller is that it can drive a pass pmos fet to provide a regulated output at high current. fet selection the type and size of the pass transistor are determined by the threshold voltage, input-output voltage differential and load current. the selected pmos must satisfy the physical and thermal design requirements. table i shows a partial list of manufacturers providing the pmos devices. to ensure that the maximum v gs provided by the controller will turn on the pet at worst case conditions (i.e., temperature and manufacturing tolerances), the maximum available vgs must be determined. maximum vgs is calculated as follows: (1) vgs=vn-v1m-iomhxxrs iomhx = maximum output current rs = current sense resistor vim -0.7 v (room temp) -0.5 v (hot) -0.9 v (cold) for example: vn = 5 v, vo = 3.3 v and iomhx = 3 a, vgs=5v-0.7v-3ax 11 mq=4.27v equation (1) applies to a g;lte-to-source voltage less than the gate to source clamp voltage. (2) vos = vn- vo vos=5v-3.3v= 1.7 v ifvn ~ 5 v, logic level fet should be considered. ifvn > 5 v, either logic level or standard mosfet can be used. the difference between vis and vour (vos) must exceed the voltage drop due to the load current and the on resistance of the fet. as a safety margin, it is recommended to use a mos- fet with a v gs at least 1.5 times lower than the calculated v gs value from equation 1. also, in the event the circuit is shorted to ground, the mosfet must be able to conduct the maximum short circuit current. the selected mospet must satisfy these criteria; otherwise, a different pass device should be used. if the fet data is not available in the catalogue, contact the fet manufacturer. thennal design the maximum allowable thermal resistance between the fet junction and the highest ambient temperature must be taken into account to determine the type of pet package used. one square inch of pcb copper area as heatsink yields a typical 8y.. - 60c/w for the sot-223 package and 81a - 5cf'c/w for the so-8 package. for substantially lower thermal resistances, iypak or to-220 type of packages are recommended. for normal applications, the fet can be directly mounted to the pcb. but, for higher power applications, an external heat sink is required to satisfy the 8ja requirement and provide adequate heatsink. calculating thermal resistance for vn = 5 v, vo = 3.3 v, and lo=3a: 8 - ~f-t~y fa - . (v dsmax x lamax ) t.1 = junction temperature tmfffita.\': = maximum ambient temperature - page vdsmax lamax = maximum drain to source voltage = maximum output current = 125 -50 -14. 7c/w l7x3 ala for such a low81a> a p-c:hannel fet from fairchild, such as ndp6020p in a heats ink mountable to-220 package, is required. the required external heatsink is determined as follows: 8ct.. = 8;a - 81c 8ct.. = case-to-ambient thermal resistance 8;a = junction-to-ambient thermal resistance 8;c = junction-to-case thermal resistance 8;c = 2c/w for ndp6020p 8ct.. = 14.7c;w - 2c/w = 12.7c/w for a safety margin, select a heats ink with a 8c:.. less than half of the value calculated above to allow extended duration of short circuit. in a natural convection environment, a large heatsink such as 3" length of type 63020 extrusion from aavid engineering is required. extenial capacitors the adp331o is stable with virtually any good quality capaci- tors (anycaptm), independent of the capacitor's minimum esr (effective series resistance) value. the actual value of the ca- pacitor and its associated esr depends on the g,n and ca- pacitance of the external pmos device. a 10 j.lf capacitor at the output is sufficient to ensure stability for up to loa output current. larger capacitors can be used if high output current surges are anticipated. extremely low esr capacitors (esr"o) such as multilayer ceramic or oscon are preferred because they offer lower ripple on the output. for less demanding requirements, a standard tantalum or even an aluminum electrolytic is adequate. however, if an aluminum electrolytic is used, be sure it meets the temperature requirements because aluminum electrolytic has poor performance over temperature. shutdown mode applying a tit.. high signal to the en pin or tying it to the input pin will enable the output. pulling this pin low or tying it to ground will disable the output. in shutdown mode, the controller's quiescent current is reduced to less than 1 ~. gate-to-source qarnp an 8 v gate-to-source voltage clamp is provided to protect the mosfet in the event the output is suddenly shorted to ground. this allows the use of the new, low on-state resistance (roso~) fets. short circuit protection the power fet is protected during short circuit conditions with a foldback type of current limiting which significantly re- duces the current. current sense resistor current limit is achieved by setting an appropriate current sense resistor crs) across the current limit threshold voltage. current limit sense resistor rs is calculated as follows: 0.05 ~.= (l5xlo) anycap is a tradcm"u'k of an.~log devices, inc. -6- rev. a obsolete
analog devices fax-on-demand hotline - page adp331 0 current limit threshold voltage = 0.05 v safety facror = 1.5 10 = output current rs is not needed in circuits that do not require current limiting. in that case, the is pin must be tied to the input pin. tile simplest and cheapest sense resistor for high current applica- tions, (le., figure 1) is a pcb trace. the temperature depen- dence of the copper trace and the thickness tolerances of the trace must be taken into account in the design. the resistivity of copper has a positive temperature coefficient of +0.39%f'c. copper's tempco in conjunction with the proportional-to- absolute temperature (ptat) current limit voltage can provide an accurate current limit. table ii provides the resistance value for pcb copper traces. alternately, an appropriate sense resistor such as surface mount sense resistors available from krl can be used. pcb-layout issues for optimum voltage regulation, place the load as close as pos- sible to the device's your and gnd pins. it is recommended to use dedicated pcb traces to connect the mosfet's drain to the positive terminal and gnd to the negative terminal of the load to avoid voltage drops along the high current carrying pcb traces. application circuits typical 3 a ldo circuit the adp33 10 and a power mosfet can be used to power the new generation of cpus and microprocessors from the standard +5 v supply at a very low cost (figure 14). this circuit provides low dropout, fast switching and high switching load current from 0 a to 3 a. due to the high switching load current, capaci- tors with high ripple current carrying capability, such as oscon or special tantalum capacitors from sprague (593d), are recom- mended for the output. vin-5vto15v . coiltronics ctx-68-4 .. krl sl.1.c1.0ro50l c2 1 v.- ~ 1dnf p.drive intvcc sd adp1148 sense-' i j~ sense-f )ct n-drive 0-1 table ii. printed circuit copper resistance 4.5v to 5.5v m1 ndp6d2dp is vin gate adp331 0-3.3 en vour gnd figure 14. typical 3 a low dropout regulator circuit mi irf74d4 is gate co 3.3vi1a c5 "bat54 ~1d"f 2n39d6 q1 r2 124kil 1% r3 274k!i figure 15. high current post regulator with soic pmos rev. a -7- conductor conductor width resistance thickness in j:j:jdjin 1/2 ozifyz 0.025 39.3 (l8) 0.050 19.7 0.100 9.83 0.200 4.91 0.500 1.97 1 o:zjfrz 0.025 19.7 (35) 0.050 9.83 0.100 .,\.91 0.200 2.46 0.500 0.98 2 o:zjfyz 0.025 9.83 (70) 0.050 4.91 0.100 2.46 0.200 1.23 0.500 0.49 3 o:zjfrz 0.025 6.5 (106 1jiil) 0.050 3.25 0.100 1.63 0.200 0.81 0.500 0.325 obsolete
analog devices fax-on-demand hotline - page adp3310 high current post regulator with soic pmos post regulation for a switch-mode supply (figure 15) can be implemented with a pmos in an so-8 package to provide a significant reduction in peak-to-peak ripple voltage. a constant dropout voltage in conjunction with low quiescent current yield a more efficient voltage regulator that can significantly extend battery life. the bottom waveform of figure 16 is the output of the switching regulator. the top waveform is the output of the post regulator. in applications where cost is a higher concern than efficiency, a resistor divider can be used to provide feedback instead of the current mirror. power efficiency is lower in cases oflight loads. figure 16. pre-and post-regulated voltage outline dimensions dimensions shown in inches and (mm). 8-lead small outline (so-8) 1 0.1968 (5.00)f-- .-- c o~1890(4'8:)lt 0.1574 (4.00) 0.2440 (6.20) 0.1497 (3.801 1 4 0.2284 (5.80) l-. u i pin 1 /' = t -tot ... 0.0500(1.27) -.jf-.0196(0.50) bsc ii 0.0099 (0.25) x 450 ~+0.0688(1.75) .~ 0.0098(0.25).1...: lt 0.0532 (1.35) l[ i\. 0.0040(0.101+1 -..4~ t -..4..- seating 0.0192(0.49) 0.0098(0.25) 0' 0.0500(1.27) plane 0.0138 (0.35) 0.0075 (0.19) 0.0160 (0.41) -8- ---- ~~'-- - va vas rev. a -- ~ >- ~ to:7819371021 10/29/2003 12:18am page 1 of 1 @lj@ alert gold.., gold... gold uscoro has struck gold... alert ... symbol: recent price market cap: uses $0.35 9,000,000 symbol: uses recent price: 0.35 the business ./ it has been over twenty years ~ince the price of gol~as shown such exciting upside action and potential. it has been just as long since conditions were right for an american company to develop an american gold asset. the twin peaks mine in west-central arizona is such a property. the twin peaks mines is about 80 miles north west of phoenix, arizona and 4 miles south-east of bagdad, arizona. bagdad is the site of the phelps dodge open pit mine. phelps dodge employs 515 people, primarily producing copper (247 million pounds in 2000), molybdenum, gold and silver. uscorp is a fully reporting public corporation trading on the over the counter bulletin board, symbol: uscs. uscorp's wholly owned subsidiary usmetals, inc., owns the mining leases to 141 lode mining claims that constitute the twin peaks mine. us corp is an exploration and development company that has begun test production. . uscs 0.:52 0,4$ 0,44 0 ,41) 0.36 0.32 0.28 may jun jul .a.jg s@p ~.. i. ~ ._~~~ . \kjlume- k 1985 - appraisal and valuation the late mr. n. h. carouso, former president of geo- processing, inc., was retained to make an economic valuation of the twin peaks property. the following is a statement from mr. carouso's report: "it is felt that an early cash flow can be expected. based on mining to a depth of 100 feet, the gross dollar potential using only 30% of the areas evaluated, could be $280,836,000.00. mr caruso's report was based on a spot price of $3 25/oz / gold and $6.00/oz. / silver." 2002 - appraisal and valuation mr. scott spooner, senior geologist of spooner & associates reported 3,690,782 estimated reserve ounces of gold. spooner reported silver estimated reserves at approximately 18,450,000 ounces at five ounces of silver for every ounce of gold. these estimates verify caruso's proven findings. recent news releases 7-22-03 - us corp announces proven drilling program confirms proven gold reserves. 8-06-03 - us corp announces completion of thin peaks gold mine "phase one plan of operations" uscorp's mission is to become a large and successful commercially producing, metals and minerals company. uscorp's growth strategy is geared towards additional future property acquisitions. disclaimer the publications and advertisements are not endorsements, recommendations, analysis or advisories of any nature by the publisher. ..a.n affiliate of my shareholders inc does not give tax or investment advice or advocate the purchase or sale of any security or investment. ..a.n offer to buy or sell can be made only with accompanying disclosure documents and only in the states and provinces for which they are approved. it is strongly recommended that any purchase or sale decision be discussed with a financial adviser or broker prior to completing any such purchase or sale decision. we are not registered investment advisers, or broker-dealers, or members of any financial regulatory bodies. since we receive compensation from some of the advertised companies there is an inherent conflict of interest in our statements and opinions and such statements and opinions cannot be considered independent. compensation: in keeping with section l7b of the securities act of 1933 this information was approved and provided by payee! representatives.. .no warrants are made. ..a.n affiliate of my shareholder purchased 250,000 shares of uscs from mike lee who is a third party non affiliate be aware of an inherent conflict of interest resulting from such compensation due to our intent to profit from the liquidation of these shares in the qj2.en market to cover the costs of publication and marketing. these materials may contain forward-thinking statements. to be removed from our database, call toll-free: 1-888-528-8863. -~~~ -- ~ obsolete
10/29/03 06:46 17819371021 pg 001 wall street stock alerts news flash: alarmingly, kidnapping in north america has risen to an all-time high of over 800 persons per day! kinder finder and gadget finder addresses an urgent societal need that is vital to every parent or guardian. do not miss this trade! symbol otcpk: recent price target price: emti.pk $0.215 $1.00 i strong buy i environmental tech. otcpk: emti.pk. recent price: $ 0.215 company info: emtipk environmental technologies' products currently being developed for specific market applications include short- and long-range detection devices that can be hidden in clothing, or on valuables, and that will emit signals to loved ones or owners of articles. the technology provides a capability that is ideal for families living in fear of their children being kidnapped, or of having elderly family members, suffering from dementia or any other form of memory loss, wander off aimlessly without their loved one's knowledge. alarmingly, kidnapping in north america has risen to an all-time high of over 800 persons per day! another promising application, "find-a-shipment," will enable real-time tracking and up-to the-minute delivery progress for shippers needing to maximize their just- in-time delivery service. the company also announced recently that it is pursuing the introduction of an embedded device in credit cards, passports, etc" that will pinpoint the location of lost or stolen cards in real time. we believe that our product range admirably addresses these growing security needs, and that the marketplace will enthusiastically welcome the finder technology. the technology provides a capability that is ideal for families living in fear of their children being kidnapped, or of having elderly family members, suffering from dementia or any other form of memory loss, wander off aimlessly without their loved one's knowledge. breaking news! ! tucson, ariz., sept. 9, 2003 (primezone) environmental technologies inc. (other otc:emti.pk news) is pleased to announce they have received the prototypes for its first two finder security devices, the gadget finder and kinder finder, ahead of schedule, following which the devices will undergo independent testing this fall. the company is engaged in discussions with several recognized testing/engineering firms and expects to enter into an agreement by month-end whereby formal testing will be carried out preparatory to the commencement of production design and engineering. gadget finder -- represents an inexpensive way to prevent the loss or theft of portable electronic gadgets such as cell phones, pdas, laptops, cd players, etc. the device, which encompasses leading-edge gps, wireless, and rfid technology, allows the owner to instantly locate the missing device using a pocket-held wireless unit. as well, an audible beep will alert the owner whenever the device reaches a stipulated distance (i.e., 30 feet) from the owner. kinder finder -- consists of a tiny device hidden on a child's person that will allow the parent to pinpoint the location of that child to within 1,000 square feet anywhere in the world at any time. if a parent and child get separated in public, the parent can immediately determine, from a pocket-held unit or medallion, the direction in which the child has wandered off, and the distance to the child. with kidnappings and reports of missing children having risen to an all time high in the us, kinder finder addresses an urgent need that is vital to every parent or guardian. watl street stock alerts publishes reports providing information on selected companies. wssa is not a registered investment advisor or broker. dealer. this report is provided as an information service only, and the statements and opinions in this report should not be construed as an offer or solicitation to buy or sell any security. wssa accepts no liability for any loss arising from an investor's reliance on or use of this report. an investment in emti is considered to be highly speculative and should not be considered unless a person can a1ford a complete loss of investment. stock alerts, llc has received $20,000 cash fi'om a non-af'f'iliated third party, for the publication and circulation of this report. this report contains forward-looking statements, which involve risks, and uncertainties that may cause actual results to dilfer materially from those set forth in the forward-looking statements. copyright 2003 by wssa. all rights reserved. to be removed from our database, call toll free at 1-888-399-1563 obsolete
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