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data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4vdc ?5.5vdc input; 0.75vdc to 3.63vdc ou tput;3a output current * 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. ** iso is a registered trademark of the international organization of standards document no: ds04-040 ver. 1.32 pdf name: minilynx_sip_ds.pdf applications ? distributed power architectures ? intermediate bus voltage applications ? telecommunications equipment ? servers and storage applications ? networking equipment ? enterprise networks ? latest generation ic?s (dsp, fpga, asic) and microprocessor powered applications features ? compliant to rohs eu directive 2002/95/ec (-z versions) ? compliant to rohs eu directive 2002/95/ec with lead solder exemption (non-z versions) ? delivers up to 3a output current ? high efficiency ? 94% at 3.3v full load (v in = 5.0v) ? small size and low profile: 22.9 mm x 10.2 mm x 6.63 mm (0.90 in. x 0.40 in. x 0.261 in.) ? low output ripple and noise ? high reliability: calculated mtbf = 11.9m hours at 25 o c full-load ? constant switching frequency (300 khz) ? output voltage programmable from 0.75 vdc to 3.63vdc via external resistor ? line regulation: 0.4% (typical) ? load regulation: 0.4% (typical) ? temperature regulation: 0.4 % (typical) ? remote on/off ? output overcurrent protection (non-latching) ? wide operating temperature range (-40c to 85c) ? ul * 60950-1recognized, csa ? c22.2 no. 60950-1- 03 certified, and vde ? 0805:2001-12 (en60950-1) licensed ? iso** 9001 and iso 14001 certified manufacturing facilities description austin minilynx tm sip (single-in-line) power modules are non-isolated dc-dc converters that can deliver up to 3a of output current with full load efficiency of 94.0% at 3.3v output. these modules provide a precisely regulated output voltage programmable via an external resistor from 0.75vdc to 3.63vdc over a wide range of input voltage (v in = 2.4 ? 5.5vdc). their open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. in addition to sequencing, standard features include remote on/off, programmable output voltage and over current protection. rohs compliant
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 2 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. 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 the operations sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. parameter device symbol min max unit input voltage all v in -0.3 5.8 vdc continuous operating ambient temperature all t a -40 85 c (see thermal considerations section) storage temperature all t stg -55 125 c electrical specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. parameter device symbol min typ max unit operating input voltage v o,set v in ? 0.5v v in 2.4 ? 5.5 vdc maximum input current all i in,max 3.0 adc (v in = v in, min to v in, max , i o =i o, max v o,set = 3.3vdc) input no load current v o,set = 0.75vdc i in,no load 10 ma (v in = 5.0vdc, i o = 0, module enabled) v o,set = 3.3vdc i in,no load 17 ma input stand-by current all i in,stand-by 0.6 ma (v in = 5.0vdc, module disabled) inrush transient all i 2 t 0.04 a 2 s input reflected ripple current, peak-to-peak (5hz to 20mhz, 1 h source impedance; v in, min to v in, max, i o = i omax ; see test configuration section) all 35 map-p input ripple rejection (120hz) all 30 db caution: this power module is not internally fused. an input line fuse must always be used. this power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex power architecture. 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 agencies require a fast- acting fuse with a maximum rating of 6 a (see safety considerations section). based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. refer to the fuse manufacturer?s data sheet for further information.
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 3 electrical specifications (continued) parameter device symbol min typ max unit output voltage set-point all v o, set -2.0 v o, set +2.0 % v o, set (v in = in, min , i o =i o, max , t a =25c) output voltage all v o, set -3% ? +3% % v o, set (over all operating input voltage, resistive load, and temperature conditions until end of life) adjustment range all v o 0.7525 3.63 vdc selected by an external resistor output regulation line (v in =v in, min to v in, max ) all ? 0.4 ? % v o, set load (i o =i o, min to i o, max ) all ? 0.4 ? % v o, set temperature (t ref =t a, min to t a, max ) all ? 0.4 ? % v o, set output ripple and noise on nominal output (v in =v in, nom and i o =i o, min to i o, max cout = 1 f ceramic//10 ftantalum capacitors) rms (5hz to 20mhz bandwidth) all ? 10 15 mv rms peak-to-peak (5hz to 20mhz bandwidth) all ? 25 50 mv pk-pk external capacitance esr 1 m ? all c o, max ? ? 1000 f esr 10 m ? all c o, max ? ? 3000 f output current all i o 0 3 adc output current limit inception (hiccup mode ) all i o, lim ? 220 ? % i o (v o = 90% of v o, set ) output short-circuit current all i o, s/c ? 2 ? adc (v o 250mv) ( hiccup mode ) efficiency v o,set = 0.75vdc 81.5 % v in = v in, nom , t a =25c v o, set = 1.2vdc 87.0 % i o =i o, max , v o = v o,set v o,set = 1.5vdc 89.0 % v o,set = 1.8vdc 90.0 % v o,set = 2.5vdc 93.0 % v o,set = 3.3vdc 94.0 % switching frequency all f sw ? 300 ? khz dynamic load response (dio/dt=2.5a/ s; v in = v in, nom ; t a =25c) all v pk ? 250 ? mv load change from io= 50% to 100% of io,max; 1 f ceramic// 10 f tantalum peak deviation settling time (vo<10% peak deviation) all t s ? 50 ? s (dio/dt=2.5a/ s; v in = v in, nom ; t a =25c) all v pk ? 250 ? mv load change from io= 100% to 50%of io,max: 1 f ceramic// 10 f tantalum peak deviation settling time (vo<10% peak deviation) all t s ? 50 ? s
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63v dc output; 3a output current lineage power 4 electrical specifications (continued) parameter device symbol min typ max unit dynamic load response (dio/dt=2.5a/ s; v v in = v in, nom ; t a =25c) all v pk ? 60 ? mv load change from io= 50% to 100% of io,max; co = 2x150 f polymer capacitors peak deviation settling time (vo<10% peak deviation) all t s ? 100 ? s (dio/dt=2.5a/ s; v in = v in, nom ; t a =25c) all v pk ? 60 ? mv load change from io= 100% to 50%of io,max: co = 2x150 f polymer capacitors peak deviation settling time (vo<10% peak deviation) all t s ? 100 ? s general specifications parameter min typ max unit calculated mtbf (i o =i o, max , t a =25c) 11,965,153 hours weight ? 2.8 (0.1) ? g (oz.)
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 5 feature specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. see feature descriptions for additional information. parameter device symbol min typ max unit on/off signal interface device code with suffix ?4? ? positive logic (on/off is open collector/drain logic input; signal referenced to gnd - see feature description section) input high voltage (module on) all v ih D D v in, max v input high current all i ih D D 10 a input low voltage (module off) all v il -0.2 D 0.3 v input low current all i il D 0.2 1 ma device code with no suffix ? negative logic (on/off pin is open collector/drain logic input with external pull-up resistor; signal referenced to gnd) input high voltage (module off) all v ih 1.5 D v in,max vdc input high current all i ih 0.2 1 ma input low voltage (module on) all v il -0.2 D 0.3 vdc input low current all i il D 10 a turn-on delay and rise times (i o =i o, max , v in = v in, nom, t a = 25 o c, ) case 1: on/off input is set to logic low (module on) and then input power is applied (delay from instant at which v in =v in, min until vo=10% of vo,set) all tdelay D 4 D msec case 2: input power is applied for at least one second and then the on/off input is set to logic low (delay from instant at which von/off=0.3v until vo=10% of vo, set) all tdelay D 4 D msec output voltage rise time (time for vo to rise from 10% of v o,set to 90% of vo, set) all trise D 4 D msec output voltage overshoot ? startup D 1 % v o, set i o = i o, max ; v in = 2.4 to 5.5vdc, t a = 25 o c remote sense range D D 0.5 overtemperature protection all t ref ? 140 ? c (see thermal consideration section) input undervoltage lockout turn-on threshold all 2.2 v turn-off threshold all 2.0 v
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 6 characteristic curves the following figures provide typical characteristics for the austin minilynx tm sip modules at 25oc. 70 73 76 79 82 85 88 91 94 0 0 .6 1.2 1.8 2 .4 3 v in = 5.0v v in = 3.3v v in = 2.5v 73 76 79 82 85 88 91 94 97 00.61.21.82.4 3 v in = 5.0v v in = 3.3v v in = 2.5v efficiency, (%) output current, i o (a) efficiency, (%) output current, i o (a) figure 1. converter efficiency versus output current (vout = 0.75vdc). figure 4. converter efficiency versus output current (vout = 1.8vdc). 70 73 76 79 82 85 88 91 94 0 0.6 1.2 1.8 2.4 3 v in = 5.0v v in = 3.3v v in = 2.5v efficiency, (%) output current, i o (a) efficiency, (%) output current, i o (a) figure 2. converter efficiency versus output current (vout = 1.2vdc). figure 5. converter efficiency versus output current (vout = 2.5vdc). 72 75 78 81 84 87 90 93 96 0 0.6 1.2 1.8 2.4 3 v in = 5.0v v in = 3.3v v in = 2.5v efficiency, (%) output current, i o (a) efficiency, (%) output current, i o (a) figure 3. converter efficiency versus output current (vout = 1.5vdc). figure 6. converter efficiency versus output current (vout = 3.3vdc). 74 77 80 83 86 89 92 95 98 0 0 .6 1.2 1.8 2 .4 3 v in = 5.0v v in = 4.0v v in = 3.3v 75 78 81 84 87 90 93 96 99 0 0 .6 1.2 1.8 2.4 3 v in = 5.5v v in = 5.0v v in = 4.0v
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3. 63vdc output; 3a output current lineage power 7 characteristic curves (continued) the following figures provide typical characteristics for the austin minilynx tm sip modules at 25oc. 0 0.5 1 1. 5 2 2.5 3 3.5 0 12345 io=1.5a io =0 a io =3 a input current, i in (a) input voltage, v in ( v ) output current, output voltage i o (a) (2a/div) v o (v) (100mv/div) time , t ( 20 figure 7. input voltage vs. input current (vout =2.5vdc). figure 10. transient response to dynamic load change from 50% to 100% of full load (vo = 3.3vdc). output voltage v o (v) (10mv/div) time, t (1 s/div) output current, output voltage i o (a) (2a/div) v o (v) (100mv/div) time, t (20 s/div) figure 8. typical output ripple and noise (v in = 5.0v dc, vo = 0.75vdc, io=3a). figure 11. transient response to dynamic load change from 100% to 50% of full load (vo = 3.3 vdc). output voltage v o (v) (10mv/div) time, t (1 s/div) output current, output voltage i o (a) (2a/div) v o (v) (20mv/div) time, t (100 s/div) figure 9. typical output ripple and noise ( v in = 5.0v dc, vo = 3.3vdc, io=3a). figure 12. transient response to dynamic load change from 50% to 100% of full load (vo = 3.3 vdc, cext = 2x150 f polymer capacitors).
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 8 characteristic curves (continued) the following figures provide typical characteristics for the austin minilynx tm sip modules at 25oc. output current, outputvoltage i o (a) (2a/div) v o (v) (20mv/div) time, t (100 s/div) input voltag output voltage v in (v) (2v/div) v o (v) (1v/div) time, t (2ms/div) figure 13. transient response to dynamic load change from 100% of 50% full load (vo = 3.3vdc, cext = 2x150 figure 16. typical start-up with application of vin (v in = 5.0vdc, vo = 3.3vdc, io = 3a). on/off voltage output voltage v on/off (v) (2v/div) v o (v) (1v/div) time, t (2ms/div) on/off voltage output voltage v on/off (v) (2v/div) v o (v) (0.5v/div) time, t (2ms/div) figure 14. typical start-up using remote on/off (v in = 5.0vdc, vo = 3.3vdc, io = 3a). figure 17 typical start-up using remote on/off with prebias (v in = 3.3vdc, vo = 1.8vdc, io = 1.0a, vbias =1.0vdc). on/off voltage output voltage v on/off (v) (2v/div) v o (v) (1v/div) time, t (2ms/div) output current, i o (a) (5a/div) time, t (10ms/div) f igure 15. typical start-up using remote on/off with low-esr external capacitors (7x150uf polymer) ( v in = 5.0vdc , vo = 3.3vdc , io = 3a , co = 1050 ==
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3. 63vdc output; 3a output current lineage power 9 characteristic curves (continued) the following figures provide thermal derating curves for the austin minilynx tm sip modules. 0 0.5 1 1. 5 2 2.5 3 3.5 20 30 40 50 60 70 80 90 0 lfm 0 0.5 1 1. 5 2 2.5 3 3.5 20 30 40 50 60 70 80 90 0 lfm output current, io (a) ambient temperature, t a o c output current, io (a) ambient temperature, t a o c figure 19. derating output current versus local ambient temperature and airflow ( v in = 5.0, vo=3.3vdc). figure 22. derating output current versus local ambient temperature and airflow (v in = 3.3dc, vo=2.5 vdc). 0 0.5 1 1. 5 2 2.5 3 3.5 20 30 40 50 60 70 80 90 0 lfm 0 0.5 1 1. 5 2 2.5 3 3.5 20 30 40 50 60 70 80 90 0 lfm output current, io (a) ambient temperature, t a o c figure 20. derating output current versus local ambient temperature and airflow (v in = 5.0vdc, vo=1.8 vdc). figure 23. derating output current versus local ambient temperature and airflow (v in = 3.3dc, vo=1.2 vdc). 0 0.5 1 1. 5 2 2.5 3 3.5 20 30 40 50 60 70 80 90 0 lfm 0 0.5 1 1. 5 2 2.5 3 3.5 20 30 40 50 60 70 80 90 0 lfm output current, io (a) ambient temperature, t a o c figure 21. derating output current versus local ambient temperature and airflow ( v in = 5.0vdc, vo=0.75 vdc). figure 24. derating output current versus local ambient temperature and airflow (v in = 3.3dc, vo=0.75 vdc).
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3. 63vdc output; 3a output current lineage power 10 test configurations to oscilloscope current probe l test 1 h battery c s 1000 f electrolytic e.s.r.<0.1 @ 20c 100khz 2x100 f tantalum v in (+) com note: measure input reflected ripple current with a simulated source inductance (l test ) of 1 h. capacitor c s offsets possible battery impedance. measure current as shown above. c in figure 25. input reflected ripple current test setup. note: all voltage measurements to be taken at the module terminals, as shown above. if sockets are used then kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. v o (+) com 1uf . resistive load scope copper strip ground plane 10uf figure 26. output ripple and noise test setup. v o com v in (+) com r load r contact r distribution r contact r distribution r contact r contact r distribution r distribution v in v o note: all voltage measurements to be taken at the module terminals, as shown above. if sockets are used then kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. figure 27. output voltage and efficiency test setup. = v o . i o v in . i in x 100 % efficiency design considerations input filtering the austin minilynx tm sip module should be connected to a low-impedance source. a highly inductive source can affect the stability of the module. an input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage and ensure module stability. to minimize input voltage ripple, low-esr polymer and ceramic capacitors are recommended at the input of the module. figure 28 shows the input ripple voltage (mvp-p) for various outputs with 1x22f (tdk: c3225x5r0j226v) ceramic capacitor at the input of the module. figure 29 shows the input ripple with 1x47f (tdk: c3225x5r0j476m) ceramic capacitor at full load. input ripple voltage (mvp-p) 0 20 40 60 80 1 00 1 20 1 40 1 60 0 0.5 1 1.5 2 2 .5 3 3.5 3.3vin 5vin output voltage (vdc) figure 28. input ripple voltage for various outputs with 1x22 f ceramic capacitor at the input (full- load). input ripple voltage (mvp-p) 0 20 40 60 80 10 0 12 0 14 0 16 0 0 0 .5 1 1.5 2 2 .5 3 3 .5 3.3vin 5vin output voltage (vdc) figure 29. input ripple voltage for various outputs with 1x47 f ceramic capacitor at the input (full load).
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 11 design considerations (continued) output filtering the austin minilynx tm sip module is designed for low output ripple voltage and will meet the maximum output ripple specification with 1 f ceramic and 10 f tantalum capacitors at the output of the module. however, additional output filtering may be required by the system designer for a number of reasons. first, there may be a need to further reduce the output ripple and noise of the module. second, the dynamic response characteristics may need to be customized to a particular load step change. to reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can be used. low esr polymer and ceramic capacitors are recommended to improve the dynamic response of the module. for stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. safety considerations for safety agency approval the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standards, i.e., ul 60950-1, csa c22.2 no. 60950-1-03, and vde 0850:2001-12 (en60950-1) licensed. 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 fast- acting fuse with a maximum rating of 6a in the positive input lead .
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3. 63vdc output; 3a output current lineage power 12 feature description remote on/off the austin minilynx tm sip power modules feature an on/off pin for remote on/off operation. two on/off logic options are available in the austin minilynx tm series modules. positive logic on/off signal, device code suffix ?4?, turns the module on during a logic high on the on/off pin and turns the module off during a logic low. negative logic on/off signal, no device code suffix, turns the module off during logic high on the on/off pin and turns the module on during logic low. for positive logic modules, the circuit configuration for using the on/off pin is shown in figure 30. the on/off pin is an open collector/drain logic input signal (von/off) that is referenced to ground. during a logic-high (on/off pin is pulled high internal to the module) when the transistor q1 is in the off state, the power module is on. maximum allowable leakage current of the transistor when von/off = v in,max is 10a. applying a logic-low when the transistor q1 is turned-on, the power module is off. during this state von/off must be less than 0.3v. when not using positive logic on/off pin, leave the pin unconnected or tie to v in. q1 r2 r1 q2 r3 r4 q3 css gnd vin+ on/off pwm enable + _ on/off v i on/off module figure 30. circuit configuration for using positive logic on/off. for negative logic on/off devices, the circuit configuration is shown is figure 31. the on/off pin is pulled high with an external pull-up resistor (typical r pull- up = 5k, +/- 5%). when transistor q1 is in the off state, logic high is applied to the on/off pin and the power module is off. the minimum on/off voltage for logic high on the on/off pin is 1.5vdc. to turn the module on, logic low is applied to the on/off pin by turning on q1. when not using the negative logic on/off, leave the pin unconnected or tie to gnd. q1 r1 r2 q2 css gnd pwm enable on/off vin+ on/off _ + v i module pull-up r on/off figure 31. circuit configuration for using negative logic on/off. overcurrent protection to provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting continuously. at the point of current-limit inception, the unit enters hiccup mode. the unit operates normally once the output current is brought back into its specified range. the typical average output current during hiccup is 3.5a. input undervoltage lockout at input voltages below the input undervoltage lockout limit, module operation is disabled. the module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. overtemperature protection to provide over temperature protection in a fault condition, the unit relies upon the thermal protection feature of the controller ic. the unit will shutdown if the thermal reference point t ref , exceeds 140 o c (typical), but the thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. the module will automatically restart after it cools down.
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 13 feature descriptions (continued) output voltage programming the output voltage of the austin minilynx tm sip can be programmed to any voltage from 0.75 vdc to 3.63 vdc by connecting a single resistor (shown as rtrim in figure 32) between the trim and gnd pins of the module. without an external resistor between trim pin and the ground, the output voltage of the module is 0.7525 vdc. to calculate the value of the resistor rtrim for a particular output voltage vo, use the following equation: ? ? ? ? ? ? ? ? = 5110 7525 . 0 21070 vo rtrim for example, to program the output voltage of the austin minilynx tm module to 1.8 vdc, rtrim is calculated is follows: ? ? ? ? ? ? ? ? = 5110 7525 . 0 8 . 1 21070 rtrim = k rtrim 004 . 15 v o (+) trim gnd r trim load v in (+) on/off figure 32. circuit configuration to program output voltage using an external resistor. table 1 provides rtrim values required for some common output voltages. table 1 v o, set (v) rtrim ( k ? ) 0.7525 open 1.2 41.973 1.5 23.077 1.8 15.004 2.5 6.947 3.3 3.160 by using a 1% tolerance trim resistor, set point tolerance of 2% is achieved as specified in the electrical specification. the pol programming tool, available at www.lineagepower.com under the design tools section, helps determine the required external trim resistor needed for a specific output voltage. voltage margining output voltage margining can be implemented in the austin minilynx tm modules by connecting a resistor, r margin-up , from the trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, r margin-down , from the trim pin to the output pin for margining-down. figure 33 shows the circuit configuration for output voltage margining. the pol programming tool, available at ww.lineagepower.com under the design tools section, also calculates the values of r margin-up and r margin-down for a specific output voltage and % margin. please consult your local lineage power technical representative for additional details. vo austin lynx or lynx ii series gnd trim q1 rtrim rmargin-up q2 rmargin-down figure 33. circuit configuration for margining output voltage.
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3. 63vdc output; 3a output current lineage power 14 thermal considerations power modules operate in a variety of thermal environments; however, sufficient cooling should always be provided to help ensure reliable operation. considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. a reduction in the operating temperature of the module will result in an increase in reliability. the thermal data presented here is based on physical measurements taken in a wind tunnel. the test set-up is shown in figure 35. note that the airflow is parallel to the long axis of the module as shown in figure 34. the derating data applies to airflow in either direction of the module?s long axis. tref2 tref1 airflow figure 34. t ref temperature measurement location. the thermal reference point, t ref used in the specifications is shown in figure 34. for reliable operation this temperature should not exceed 115 o c. the output power of the module should not exceed the rated power of the module (vo,set x io,max). please refer to the application note ?thermal characterization process for open-frame board- mounted power modules? for a detailed discussion of thermal aspects including maximum device temperatures. figure 35. thermal test set-up. a ir flow x po w e r m o d u le w ind tunnel pwbs 5.97_ (0.235) 76.2_ (3.0) probe location for measuring airflow and ambient temperature 25.4_ (1.0)
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 15 post solder cleaning and drying considerations post solder cleaning is usually the final circuit-board assembly process prior to electrical 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 board mounted power modules: soldering and cleaning application note. through-hole lead-free soldering information the rohs-compliant through-hole products use the sac (sn/ag/cu) pb-free solder and rohs-compliant components. they are designed to be processed through single or dual wave soldering machines. the pins have an rohs-compliant finish that is compatible with both pb and pb-free wave soldering processes. a maximum preheat rate of 3 c/s is suggested. the wave preheat process should be such that the temperature of the power module board is kept below 210 c. for pb solder, the recommended pot temperature is 260 c, while the pb-free solder pot is 270 c max. not all rohs-compliant through-hole products can be processed with paste-through-hole pb or pb-free reflow process. if additional information is needed, please consult with your lineage power technical representative for more details.
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3. 63vdc output; 3a output current lineage power 16 mechanical outline dimensions are in millimeters and (inches). tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) top view side view pin function 1 vo 2 trim 3 gnd 4 v in 5 on/off
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3. 63vdc output; 3a output current lineage power 17 recommended pad layout dimensions are in millimeters and (inches). tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) pin function 1 vo 2 trim 3 gnd 4 v in 5 on/off component side view
data sheet february 26, 2009 austin minilynx tm sip non-isolated power modules: 2.4 ? 5.5vdc input; 0.75vdc to 3.63vdc output; 3a output current lineage power 18 document no: ds04-040 ver. 1.32 pdf name: minilynx_sip_ds.pdf ordering information please contact your lineage power sales representative for pricing, availability and optional features. table 3. device codes device code input voltage range output voltage output current efficiency 3.3v@ 3a on/off logic connector type comcodes axh003a0x 2.4 ? 5.5vdc 0.75 ? 3.63vdc 3 a 94.0 % negative sip 108992640 axh003a0x4 2.4 ? 5.5vdc 0.75 ? 3.63vdc 3 a 94.0 % positive sip 108992657 axh003a0x-z 2.4 ? 5.5vdc 0.75 ? 3.63vdc 3 a 94.0 % negative sip cc109104865 AXH003A0X4-Z 2.4 ? 5.5vdc 0.75 ? 3.63vdc 3 a 94.0 % positive sip cc109104873 -z refers to rohs compliant versions world wide headquarters lineage power corporation 3000 skyline drive, mesquite, tx 75149, usa +1-800-526-7819 (outside u.s.a.: +1-972-284-2626 ) www.lineagepower.com e-mail: techsupport1@lineagepower.com asia-pacific headquarters tel: +65 6416 4283 europe, middle-east and africa headquarters tel: +49 89 6089 286 india headquarters tel: +91 80 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.

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