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data sheet march 28, 2008 austin lynx tm smt non-isolated dc-dc power modules: 3.0 vdc - 5.5 vdc input, 0.9 vdc - 3.3 vdc output, 10 a document name: fds02-034eps ver.1. 6 pdf name: austin lynx smt applications n workstations,servers and desktop computers n distributed power architectures n telecommunications equipment n lans/wans n data processing equipment n latest generation ic?s (dsp , fpga, asic) and micropro- cessor-powered applications. options n remote sense features n compatible with rohs eu directive 200295/ec n compatible in pb- free or snpb reflow environment n delivers up to 10a output current n high efficiency: 95% at 3.3v full load n small size and low profile: 33 mm x 13.5 mm x 8.30 mm (1.3 in x 0.53 in x 0.33 in) n light weight 0.23 oz(6.5 g) n cost-efficient open frame design n high reliability: mtbf > 10m hours at 25 c n constant switching frequency (300 khz typical) n output overcurrent prot ection with auto-restart n overtemperature protection n surface mount package,tape and reel n adjustable output voltage (-5% to +10% for 0.9v output) n remote on/off n wide operating temperature range:-40 c to +85 c n ul * 60950 recognized, csa ? c22.2 no. 60950-00 certi- fied, and vde ? 0805 (iec60950, 3rd edition) licensed rohs compliant description austin lynx? power modules are non-isolated dc-dc converters that can deliver 10 a of output current with full load effi- ciency of 95% at 3.3 v output. these open frame modules in surface-mount-package enable designers to develop cost-and space efficient solutions. standard features include remo te on/off, output voltage adjustment, overcurrent and overtem- perature protection. * ul is a registered trademark of underwriters laboratories, inc. ? csa is a registered trademark of canadian standards association. ? vde is a trademark of verband deutscher elektrotechniker e.v. this product is intended for integration into end-use equipment. all the required procedures for ce marking of end-use equipm ent should be followed. (the ce mark is placed on selected products.) ** iso is a registered trademark of the internation organization of standards
lineage power 2 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: absolute maximum ratings stresses in excess of the absolute maximum ratings can ca use permanent damage to the dev ice. these are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in th e operations sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect the device reliabiltiy. electrical specifications unless otherwise indicated, specif ications apply over all operating input voltag e, resistive load, and temperature conditions. caution: this power module is not inte rnally fused. an input line fuse must always be used. to preserve maximum flexibility, internal fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. the safety agenc ies require a time-delay fuse with a maximum rating of 20a. parameter device symbol min max unit input voltage:continuous all vin 0 6.5 vdc operating ambient temperature (see thermal considerations section) all ta ?40 85 c storage temperature all tstg ?55 125 c parameter device symbol min typ max unit operating input voltage axh010a0s0r9-sr axh010a0s1r0-sr axh010a0p-sr axh010a0m-sr axh010a0y-sr axh010a0d-sr axh010a0g-sr axh010a0f-sr vin vin vin vin vin vin vin vin 3.0 3.0 3.0 3.0 3.0 3.0 3.0 4.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 vdc vdc vdc vdc vdc vdc vdc vdc maximum input current (vi = 0 v to 75 v; io = io, max) ii, max 9.5 adc input reflected ripple current, peak-peak (5 hz to 20 mhz, 1h source impedance t a = 25 c;c in =200 f) all ii 30 map-p input ripple rejection (120 hz) all 40 db
lineage power 3 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: electrical specifications (continued) general specifications parameter device symbol min typ max unit output voltage set point (vi =5 vdc; io = io, max, ta = 25 c) axh010a0s0r9-sr axh010a0s1r0-sr axh010a0p-sr axh010a0m-sr axh010a0y-sr axh010a0d-sr axh010a0g-sr axh010a0f-sr vo,set vo,set vo,set vo,set vo,set vo,set vo,set vo,set 0.886 0.985 1.182 1.47 1.764 1.97 2.45 3.234 0.9 1.0 1.2 1.5 1.8 2.0 2.5 3.3 0.914 1.015 1.218 1.53 1.836 2.03 2.55 3.366 vdc vdc vdc vdc vdc vdc vdc vdc output voltage (over all operating input voltage, resistive load, and temperature conditions at steady state until end of life.) axh010a0s0r9-sr axh010a0s1r0-sr axh010a0p-sr axh010a0m-sr axh010a0y-sr axh010a0d-sr axh010a0g-sr axh010a0f-sr vo vo vo vo vo vo vo vo 0.873 0.970 1.164 1.455 1.746 1.94 2.425 3.2 ? ? ? ? ? ? ? ? 0.927 1.03 1.236 1.545 1.854 2.06 2.575 3.4 vdc vdc vdc vdc vdc vdc vdc vdc output regulation: line (vi = vi, min to vi, max) load (io = io, min to io, max) temperature (ta = ta, min to ta, max) all all all ? ? ? ? ? ? 0.2 0.4 0.5 %, vo, set %, vo, set %, vo, set output ripple and noise measured across 10 f tantalum, 1f ceramic,, rms (5 hz to 20 mhz bandwidth) peak-to-peak (5 hz to 20 mhz bandwidth) all all ? ? 7 25 15 30 mvrms mvp-p output current all io 0 ? 10 adc output current-limit inception (vo = 90% of vo, set) all io, lim 17 ? adc output short-circuit current (average) all io, s/c ? 3 ? adc efficiency (vi = vin, nom; io = io, max), ta = 25 c axh010a0s0r9-sr axh010a0s1r0-sr axh010a0p-sr axh010a0m-sr axh010a0y-sr axh010a0d-sr axh010a0g-sr axh010a0f-sr ? ? ? ? ? ? ? ? 83 85 86 88 90 91 92 95 ? ? ? ? ? ? ? ? % % % % % % % % switching frequency all f sw ? 300 ? khz parameter min typ max unit calculated mtbf (io = 80% of io, max ta = 25 c) lineage rin (reliability infomation notebook) method 10,240,000 hours weight ? 5.5(0.19) 6.5(0.23) g (oz.)
lineage power 4 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: feature specifications unless otherwise indicated, specif ications apply over all operating input voltag e, resistive load, and temperature conditions. see feature descriptions for additional information . parameter device symbol min typ max unit remote on/off signal interface (vi = vi,min to vi, max; open collector npn or compatible, von/off signal referenced to gnd. see figure 20 and feature descriptions section) logic high (on/off pin open?module on) ion/off = 0.0 a von/off = vi -0.4 logic low (von/off < 0.3 v)?module off ion/off = 0.5 ma von/off = 0.3 v turn-on time (io = 80% of io, max; vo within 1% of steady state; see figure 12) all all all all von/off ion/off von/off ion/off ?5 6.5 10 0.3 1 v a v ma ms output voltage set-point adjustment range (trim) axh010a0s0r9-sr all others v trim v trim -5 -10 +10 +10 %vo, set %vo, set overtemperature protection (shutdown) all t q1 /t q2 ?110? c input undervoltage lockout turn-on threshold turn-off threshold all all 2.63 2.47 2.8 2.7 2.95 2.9 v v
lineage power 5 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: characteristic curves the following figures provide typical characteristics curves at room temperature (ta = 25 c). figure 1. typical input characteristic at 10a output current. figure 2. output voltage and current characteristics. figure 3. converter efficiency vs output current axh010a0s0r9-sr(0.9v output voltage). figure 4. converter effici ency vs output current axh010a0s1r0-sr(1.0v output voltage). figure 5. converter effici ency vs output current axh010a0p-sr(1.2v output voltage). figure 6. converter effici ency vs output current axh010a0m-sr(1.5v output voltage). 2 2.5 3 3.5 4 4.5 5 5. 5 12 10 8 6 4 2 0 i i, max = 9.5 a input voltage, v i (v) input current, i i (a) 100% 75% 50% 25% 0 0% 369 1 8 12 15 output current, i o (a) normalized output voltage, v o v i = 5.5 v v i = 5.0 v v i = 3.3 v v i = 3.0 v 74 76 78 80 82 84 86 88 90 1234567891 0 output current, i o (a) efficiency, (%) v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v 74 76 78 80 82 84 86 88 90 92 v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v output current, i o (a) efficiency, (%) 1234567891 0 output current, i o (a) efficiency, (%) 78 80 82 84 86 88 90 92 1234567891 0 v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v output current, i o (a) efficiency, (%) 82 84 86 88 90 92 94 1234567891 0 v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v
lineage power 6 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: characteristic curves the following figures provide typical characteristics curves at room temperature (ta = 25 c) figure 7. converter efficiency vs output current axh010a0sy-sr(1.8v output voltage). figure 8. converter efficiency vs output current axh010a0d-sr(2.0v output voltage). figure 9. converter efficiency vs output current axh010a0g-sr(2.5v output voltage). figure 10. converter efficiency vs output current axh010a0f-sr(3.3v output voltage). figure 11. typical output ri pple voltage at 10a output current. figure 12. typical start-up transient. 84 86 88 90 92 94 1234567891 0 output current, i o (a) efficiency, (%) v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v 86 88 90 92 94 96 1234567891 0 output current, i o (a) efficiency, (%) v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v 88 90 92 94 96 98 1234567891 0 output current, i o (a) efficiency, (%) v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v 93.5 94 94.5 95 95.5 96 96.5 97 1234567891 0 output current, i o (a) efficiency, (%) v i = 4.5 v v i = 5.0 v v i = 5.5 v time, t (2 ?/div) output voltage, v o (v) (20 mv/div) v i = 3.0 v v i = 3.3 v v i = 5.0 v v i = 5.5 v time, t (2 ms/div) output voltage, v o (v) v in source
lineage power 7 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: characteristic curves the following figures provide typical characteristics curves at room temperature (ta = 25 c) figure 13. typical transient response to step load change at 2.5 a/s from 100% to 50% of io,max at 3.3 v input (cout = 1 f ceramic, 10 f tantalum). figure 14. typical transient response to step load change at 2.5 a/s from 50% to 100% of io,max at 3.3 v input (cout = 1 f ceramic, 10 f tantalum). time, t (5 ?/div) output current i o ( 2.5 a/div) output voltage v o (100 mv/div) time, t (5 ?/div) output current i o ( 2.5 a/div) output voltage v o (100 mv/div)
lineage power 8 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: test configurations note: measure input reflected ripple current with a simulated source inductance (l test ) of 1h. capacitor cs offsets possible bat- tery impedance. measure current as shown above. figure 15. input reflected ripple current test setup. note: scope measurements should be made using a bnc socket, with a 10 f tantalum capacitor and a 1 f ceramic capcitor. position the load between 51 mm and 76 mm (2 in and 3 in) from the module figure 16. peak-to-peak output ripple measurement test setup. note: all voltage measurements to be taken at the module termi- nals, as shown above. if sockets are used then kelvin con- nections are required at the module terminals to avoid measurement errors due to socket contact resistance. figure 17. output voltage and efficiency test setup. design considerations input source impedance to maintain low-noise and ripple at the input voltage, it is critical to use low esr capacitors at the input to the module. 18 shows the input ripple voltage (mvp-p) for various output models using a 150 f low esr polymer capacitor (pana- sonic p/n: eefue0j151r, sanyo p/n: 6tpe150m) in parallel with 47 f ceramic capacitor (panasonic p/n: ecj- 5yb0j476m, taiyo yuden p/n: cejmk432bj476mmt). 19 depicts much lower input voltage ripple when input capacitance is increased to 450 f (3 x 150 f) polymer capacitors in par- allel with 94 f (2 x 47 f) ceramic capacitor. the input capacitance should be able to handle an ac ripple current of at least: figure 18. input voltage ripple for various output models, io = 10 a (c in = 150 f polymer // 47 f ceramic). figure 19. input voltage ripple for various output models, io = 10 a (c in = 3x150 f polymer // 2x47 f ceramic). battery l 1 h c s 220 p f esr < 0.1 : @ 20 q c, 100 khz v i (+) v i (?) 2 x 100f tantalum v o gnd resistive load scope 10 f copper strip tantalum 1f ceramic v i v o i i i o supply c ontact resistance contact and distribution losses load gnd k v o(+) v o(-) ? >@ i o u v i(+) v i(-) ? >@ i i u ------------------------------------------------ ?1 100 u = i rms i out v out v in ---------- - 1 v out v in ---------- - ? = a rms 0 50 100 150 200 0.5 1 1.5 2 2.5 3 v i = 5 v v i = 3.3 v output voltage, v o (vdc) input voltage noise (mv p-p) 0 25 50 75 100 0.5 1 1.5 2 2.5 3 v i = 5 v v i = 3.3 v output voltage, v o (vdc) input voltage noise (mv p-p)
lineage power 9 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: design considerations (continued) input source impedance (continued) the power module should be connected to a low ac-imped- ance input source. highly inductive source impedances can affect the stability of the modu le. an input capacitance must be placed close to the input pins of the module, to filter ripple current and ensure module stability in the presence of induc- tive traces that supply the input voltage to the module. safety considerations for safety-agency approval of the system in which the power module is used, the power module must be installed in com- pliance with the spacing and sepa ration requirements of the end-use safety agency standard, i.e., ul 60950, csa c22.2 no. 60950-00, and vde 0805:2001-12 (iec60950, 3rd ed). for the converter output to be considered meeting the requirements of safety extra-low voltage (selv), the input must meet selv requirements. the power module has extra-low voltage (elv) outputs when all inputs are elv. the input to these units is to be provided with a maximum 20 a time-delay fuse in the ungrounded lead.
lineage power 10 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: feature descriptions remote on/off the austin lynx? smt power modules feature an on/off pin for remote on/off operation. if not using the remote on/off pin, leave the pin open (module will be on). the on/off pin signal (von/off) is referenced to ground. to switch the module on and off using remote on/off, connect an open collector npn transistor between the on/off pin and the gnd pin (see figure 20). during a logic-high (on/off pin is pulled high internal to the module) when the transistor is in the off state the power module is on. the maximum leakage current of the transistor when von/off = (vi ?0.4) is 10 a. the module is off when the on/off pin is pulled low (logic-low) with the transistor in the active state. during this state von/off is less than 0.3v and the maximum ion/off = 1 ma. figure 20. remote on/off implementation. output voltage set-po int adjustment (trim) output voltage set-point adjus tment allows the output volt- age set point to be increased or decreased by connecting either an external resistor or a voltage source between the trim pin and either the vo pi n (decrease output voltage) or gnd pin (increase output voltage). for trim-up using an external resistor, connect rtrim-up between the trim and gnd pins (21). the value of rtrim- up defined as: | ' vout| is the desired output voltage set-point adjustment rbuffer (internal to the module) is defined in table 1 for vari- ous models table 1. austin lynx? trim values note: v o, set is the typical output voltage for the unit. for example, to trim-up th e output voltage of 1.5v module (axh010a0m-sr) by 8% to 1.62v, rtrim-up is cal- culated as follows: figure 21. circuit configuration to trim-up output voltage. for trim-down using an external resistor, connect rtrim- down between the trim and vout pins of the module (22). the value of rtrim-down is defined as: vout is the typical set point voltage of a module |dvout| is the desired output voltage adjustment rbuffer (internal to the module) is defined in table 1 for vari- ous models for example, to trim-down the output voltage of 2.5 v mod- ule (axh010g-sr) by 8% to 2.3v, rtrim-down is calculated as follows: vo i on/off on/off v i gnd + v on/off r trim up ? 24080 ' v out ------------------ r buffer ? = k : vo, set rbuffer 3.3 v 59 k : 2.5 v 78.7 k : 2.0 v 100 k : 1.8 v 100 k : 1.5 v 100 k : 1.2 v 59 k : 1.0 v 30.1 k : 0.9 v 5.11 k : ' v out 0.12 v = r buffer 100 k : = r trim up ? 24080 0.12 -------------- - 100 k ? = r trim up ? 100.66 k : = v o trim r trim-up r load axh010a0m-sr gnd axh010a0m9-sr r trim-down v out 0 . 8 ? ' v out ------------------------ - 1 ? ?1 x 30100 r buffer ? = k :
lineage power 11 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: feature descriptions (continued) output voltage set-po int adjustment (trim) (contin- ued) figure 22. circuit configuration to trim-down output voltage. for trim-up using an external voltage source, apply a voltage from trim pin to ground using the following equation: for trim-down using an external voltage source, apply a volt- age from trim pin to ground using the following equation: vtrim-up is the external so urce voltage for trim-up vtrim-down is the external source voltage for trim-down | ' vout| is the desired output voltage set-point adjustment rbuffer (internal to the module) is defined in table 1 for vari- ous models if the trim feature is not being used, leave the trim pin dis- connected. remote sense austin lynx? smt power modules offer an option for a remote-sense function. when the device code description includes a suffix ?3?, pin 3 is added to the module and the remote-sense is an active feature. see the ordering infor- mation at the end of this document for more information. remote sense minimizes the effects of distribution losses by regulating the voltage at the load via the sense and gnd connections (see 23). the voltage between the sense pin and vo pin must not exceed 0.5v. although both the remote-sense and trim features can each increase the out- put voltage (vo), the maximum increase is not the sum of both. the maximum vo increase is the larger of either the remote sense or the trim. the amount of power delivered by the module is defined as the output voltage multiplied by the output current (vo x io). when using sense and/or trim , the output voltage of the module can increase which, if the same output current is maintained, increases the power output by the module. make sure that the maximum output power of the module remains at or below the maximum rated power. when pin 3 is present but the remote sense feature is not being used, leave sense pin disconnected. figure 23. effective circuit configuration for remote sense operation. overtemperature protection to provide additional protection in a fault condition, the unit is equipped with a nonlatched thermal shutdown circuit. the shutdown circuit engages when q1 or q2 (shown in figure 24) exceeds approximately 110 c. the unit attempts to restart when q1 or q2 cool down and cycles on and off while the fault condition exists. recovery from shutdown is accom- plished when the cause of the overtemperature condition is removed. overcurrent protection to provide protection in a faul t condition, the unit is equipped with internal overcurrent protection. the unit operates nor- mally once the fault condition is removed. the power module will supply up to 170% of rated current for less than 1.25 seconds befor e it enters thermal shutdown. v out 2.5 v = r buffer 78.7 k = r trim down ? 2.5 0.8 ? 0.2 -------------------- - 1 ? ?1 x 30100 78700 ? = r trim down ? 147.05 k : = v o trim r trim-down r load gnd v trim-up 0.8 ' v out x r buffer 30100 ----------------- - ? = v trim-down 0.8 ' v out x r buffer 30100 ----------------- - + = v i v o load gnd distribution losses distribution losses sense
lineage power 12 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: thermal considerations the power module operates in a variety of thermal environ- ments; however, sufficient cooling should be provided to help ensure reliable operation of the unit. heat is removed by conduction, convection, and radiation to the surrounding environment. the thermal data presented is based on measurements taken in a wind tunnel. the test setup shown in figure 25 was used to collect data for figures 26 and 27. note that the airflow is parallel to the short axis of the module as shown in figure 24. the derating data applies to airflow along either direction of the module?s short axis. figure 24. temperature measurement location. the temperature at either location should not exceed 110 c. the output power of the module should not exceed the rated power for the module (vo, set x io, max). convection requirements for cooling to predict the approximate cooling needed for the module, refer to the power derating curves in figures 26 and 27. these derating curves are appr oximations of the ambient temperatures and airflows r equired to keep the power mod- ule temperature below its maximum rating. once the module is assembled in the actual s ystem, the module?s temperature should be checked as shown in figure 24 to ensure it does not exceed 110 c. proper cooling can be verified by measuring the power mod- ule?s temperature at q1-pin 6 and q2-pin 6 as shown in fig- ure 24. figure 25. thermal test setup. figure 26. typical power de rating vs output current for 3.3 vin. figure 27. typical power de rating vs output current for 5.0vin. pin 6 airflow q2 q1 air flow x power modul e w ind tunnel pwbs 8.3 (0.33) 76.2 (3.0) probe locatio n for measuring airflow and ambient temperature 25.4 (1.0) 0 2 4 6 8 10 12 20 30 40 50 60 70 80 9 0 ambient temperature t a (?c) output current i o (a) 2.0 m/s (400 ft./min.) 1.0 m/s (200 ft./min.) 0.5 m/s (100 ft./min.) natural convection 0 1 2 3 4 5 6 7 8 20 30 40 50 60 70 80 9 0 ambient temperature, t a (?c) output current, i o (a) 2.0 m/s (400 ft./min.) 1.0 m/s (200 ft./min.) 0.5 m/s (100 ft./min.) natural convection
lineage power 13 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: layout considerations copper paths must not be routed beneath the power module. surface mount information pick and place area although the module weight is minimized by using open- frame construction, the modules have a relatively large mass compared to conventional surface-mount components. to optimize the pick-and-place process, automated vacuum equipment variables such as nozzle size, tip style, vacuum pressure, and placement speed should be considered. austin lynx? smt modules have a flat surface which serves as a pick-and-place location for automated vacuum equipment. the module?s pick-and-place location is identified by the tar- get symbol on the top label as shown in figure 28. figure 28. pick and place location. nozzle recommendations the module weight has been kept to a minimum by using open frame construction. even so, these modules have a rel- atively large mass when compared to conventional smt components. variables such as nozzle size, tip style, vac- uum pressure and pick & placement speed should be consid- ered to optimize this process. the minimum recommended nozzle diameter for reliable operation is 3mm. the maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 12 mm max. tin lead soldering the austin lynx tm smt power modules are lead free mod- ules and can be soldered either in a lead-free solder process or in a conventional tin/lead (sn/pb) process. it is recom- mended that the customer review data sheets in order to cus- tomize the solder reflow profile for each application board assembly. the following instructions must be observed when soldering these units. failure to observe these instructions may result in the failure of or cause damage to the modules, and can adversely affect long-term reliability. in a conventional tin/lead (sn/pb) solder process peak reflow temperatures are limited to less than 235 o c. typically, the eutectic solder melts at 183 o c, wets the land, and subse- quently wicks the device connecti on. sufficient time must be allowed to fuse the plating on the connection to ensure a reli- able solder joint. there are several types of smt reflow technologies currently used in the industry. these surface mount power modules can be reliably soldered using natural forced convection, ir (radiant infrared), or a combination of convection/ir. for reliable soldering the solder reflow profile should be established by accurately measuring the modules cp connector temperatures. figure 29. reflow profile. figure 30. time limit curve above 205 0 c. lead free soldering the ?z version austin lynx smt modules are lead-free (pb- free) and rohs compliant and are both forward and back- ward compatible in a pb-free and a snpb soldering process. failure to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long-term reliability. pb-free reflow profile power systems will comply with j-std-020 rev. c (mois- ture/reflow sensitivity classifi cation for nonhermetic solid state surface mount devices) fo r both pb-free solder profiles and msl classification procedures. this standard provides a recommended forced-air-convection reflow profile based on the volume and thickness of the package (table 4-2). the suggested pb-free solder paste is sn/ag/cu (sac). the rec- ommended linear reflow profile using sn/ag/cu solder is shown in figure. 31. 0 50 100 150 200 250 300 reflow time (s) preheat zone max 4 o cs -1 soak zone 30-240s heat zone max 4 o cs -1 peak temp 235 o c cooling zone 1-4 o cs -1 t lim above 205 o c 200 205 210 215 220 225 230 235 240 0 10 20 30 40 50 60 time (s)
lineage power 14 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: surface mount information (continued) msl rating the austin lynx tm smt modules have a msl rating of 1. storage and handling the recommended storage env ironment and handling proce- dures for moisture-sensitive surface mount packages is detailed in j-std-033 rev. a (handling, packing, shipping and use of moisture/reflow sensitive surface mount devices). moisture barrier bags (mbb) with desiccant are required for msl ratings of 2 or greater. these sealed pack- ages should not be broken until time of use. once the origi- nal package is broken, the fl oor life of the product at conditions of 30c and 60% relative humidity varies accord- ing to the msl rating (see j-std-033a). the shelf life for dry packed smt packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40 c, < 90% relative humidity. post solder cleaning and drying considerations post solder cleaning is usually the final circuit-board assembly process prior to electr ical board testing. the result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. for guidance on appropriate soldering, cleaning and drying procedures, refer to lineage power board mounted power modules: soldering and cleaning application note (ap01-056eps). figure 31. recommended linear reflow profile using sn/ ag/cu solder. solder ball and cleanliness requirements the open frame (no case or potting) power module will meet the solder ball requirements per j-std-001b. these require- ments state that solder balls mu st neither be loose nor violate the power module minimum electrical spacing. the cleanliness designator of the open frame power module is c00 (per j specification). per j-std-020 rev. c 0 50 100 150 200 250 300 reflow time (seconds) reflow temp (c) heating zone 1c/second peak temp 260c * min. time above 235c 15 seconds *time above 217c 60 seconds cooling zo ne
lineage power 15 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: surface-mount tape and reel 0 .995 ( 25.2) 0.945 (24.0) 0.158 (4.0) pick point top cover tape embossed carrier feed direction 1.45 (36.8) 1.59 (40.4) 1.73 (44.0) top cover tape embossed carrier 0.33 (8.38) note: conforms to eai-481 rev. a standard
lineage power 16 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: mechanical outline diagram dimensions are in millimeters and (inches). tolerances: x.x 0.5 mm (0.02 in.), x.xx 0. 25 mm (0.010 in.), unless otherwise noted. 1.91 (0.075) li inducto r maximum b ottom view of board side view 1.57 (0.062) 2.84 (0.112) surface mount contact 848667093 6 places v in gnd v out trim sense on/off 33.00 (1.300) 7.87 (0.310) 4.83 (0.190) 7.54 (0.297) 4.83 (0.190) 4.83 (0.190) 1.22 (0.048) 13.46 (0.530) 10.29 (0.405) 1.58 (0.062) 8.28 (0.326) see note
lineage power 17 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: recommended pad layout dimensions are in millimeters and (inches). tolerances: x.x 0.5 mm (0.02 in.), x.xx 0.25 mm (0.010 in.), unless otherwise noted. 10.9 2 (0.43 0) 4.83 (0.190) 4.83 (0.190) 4.83 (0.190) 7.54 (0.297) 7.87 (0.310) 29.90 (1.177) 10.29 ( 0.405) 0.64 (0.025) on/off sense trim v out gnd v in pad size min: 3.556 x 2.413 (0.140 x 0.095) max: 4.19 x 2.79 (0.165 x 0.110)
lineage power 18 data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: ordering information please contact your lineage power sales representa tive for pricing, availability and optional features. table 2. device codes without trim table 3. device codes with trim input voltage output voltage output current efficiency connector type device code comcodes 3.0 ? 5.5 vdc 0.9 v 10 a 83 smt axh010a0r0s9-sr 108967597 3.0 ? 5.5 vdc 1.0 v 10 a 85 smt axh010a0r1s0-sr 108967605 3.0 ? 5.5 vdc 1.2 v 10 a 86 smt axh010a0p-sr 108967571 3.0 ? 5.5 vdc 1.5 v 10 a 88 smt axh010a0m-sr 108967563 3.0 ? 5.5 vdc 1.8 v 10 a 90 smt axh010a0y-sr 108967589 3.0 ? 5.5 vdc 2.0 v 10 a 91 smt axh010a0d-sr 108967530 3.0 ? 5.5 vdc 2.5 v 10 a 92 smt axh010a0g-sr 108967555 4.5 ? 5.5 vdc 3.3 v 10 a 95 smt axh010a0f-sr 108967548 3.0 ? 5.5 vdc 1.5 v 10 a 88 smt axh010a0m-srz cc109104915 3.0 ? 5.5 vdc 1.8 v 10 a 90 smt axh010a0y-srz cc109104956 3.0 ? 5.5 vdc 2.5 v 10 a 92 smt axh010a0g-srz cc109104907 4.5 ? 5.5 vdc 3.3 v 10 a 95 smt axh010a0f-srz cc109106886 input voltage output voltage output current efficiency connector type device code comcodes 3.0 ? 5.5 vdc 0.9 v 10 a 83 smt axh010a0r0s99-sr 108966177 3.0 ? 5.5 vdc 1.0 v 10 a 85 smt axh010a0r1s09-sr 108966110 3.0 ? 5.5 vdc 1.2 v 10 a 86 smt axh010a0p9-sr 108966144 3.0 ? 5.5 vdc 1.5 v 10 a 88 smt axh010a0m9-sr 108966136 3.0 ? 5.5 vdc 1.8 v 10 a 90 smt axh010a0y9-sr 108966169 3.0 ? 5.5 vdc 2.0 v 10 a 91 smt axh010a0d9-sr 108966102 3.0 ? 5.5 vdc 2.5 v 10 a 92 smt axh010a0g9-sr 108966128 4.5 ? 5.5 vdc 3.3 v 10 a 95 smt axh010a0f9-sr 108966094 3.0 ? 5.5 vdc 1.2 v 10 a 86 smt axh010a0p9-srz cc109105896 3.0 ? 5.5 vdc 1.5 v 10 a 88 smt axh010a0m9-srz cc109101417 3.0 ? 5.5 vdc 1.8 v 10 a 90 smt axh010a0y9-srz cc109101425 3.0 ? 5.5 vdc 2.5 v 10 a 92 smt axh010a0g9-srz cc109102935 4.5 ? 5.5 vdc 3.3 v 10 a 95 smt axh010a0f9-srz cc109106878
document name: fds02-034eps ver.1. 6 pdf name: austin lynx smt data sheet march 28, 2008 3.0 vdc - 5.5 vdc input, 0. 9 vdc - 3.3 vdc output, 10 a austin lynx tm smt non-isolated dc-dc power modules: world wide headquarters lin eag e po wer co rp oratio n 30 00 skyline drive, mesquite, tx 75149, usa +1-800-526-7819 (outside u.s.a.: +1- 97 2-2 84 -2626 ) www.line ag ep ower .co m e-m ail: techsupport1@linea gepower.com asia-pacific headquart ers tel: +65 6 41 6 4283 eu ro pe, m id dle-east an d afr ic a he ad qu arter s tel: +49 8 9 6089 286 india headquarters tel: +91 8 0 28411633 lineage power reserves the right to make changes to the product(s) or information contained herein without notice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. ? 2008 lineage power corporation, (mesquite, texas) all international rights reserved. ordering information (continued) optional remote sense feature can be ordered using suffix 3 shown in table 4. for example, a axh010a0y-sr with remote sense is axh010a0y3-sr table 4. device options option suffix remote sense 3 rohs compliant -z

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