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data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10vdc ? 14vdc input; 0.75vdc to 5.5v dc output; 5a 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: ds03-101 ver. 1.31 pdf name: microlynx_12v_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 di rective 2002/95/ec (-z versions) ? compliant to rohs eu directive 2002/95/ec with lead solder exemption (non-z versions) ? delivers up to 5a output current ? high efficiency ? 89% at 3.3v full load (v in = 12.0v) ? small size and low profile: 22.9 mm x 10.2 mm x 6.65 mm (0.9 in x 0.4 in x 0.262 in) ? low output ripple and noise ? high reliability: calculated mtbf = 5.6m hours at 25 o c full-load ? output voltage programmable from 0.75 vdc to 5.5vdc via external resistor ? line regulation: 0.3% (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 microlynx tm 12vdc sip (single in-line package) power modules are non-isolated dc-dc converters that can deliver up to 5a of output current with full load efficiency of 89% at 3.3v output. these modules provide precisely regulated output voltage programmable via external resistor from 0.75vdc to 5.5vdc over a wide range of input voltage (v in = 10 - 14v). their open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. standard features include remote on/off, programmable output voltage and overcurrent protection. rohs compliant
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a 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 15 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 all v in 10 12 14 vdc maximum input current all i in,max 3.5 adc (v in = v in, min to v in, max , i o =i o, max ) input no load current v o,set = 0.75 vdc i in,no load 17 ma (v in = v in, nom , io = 0, module enabled) v o,set = 5.0vdc i in,no load 100 ma input stand-by current all i in,stand-by 1.2 ma (v in = v in, nom , module disabled) inrush transient all i 2 t 0.4 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 30 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 april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a 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 5.5 vdc selected by an external resistor output regulation line (v in =v in, min to v in, max ) all ? 0.3 ? % 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 ? 15 30 mv rms peak-to-peak (5hz to 20mhz bandwidth) all ? 30 75 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 5 adc output current limit inception (hiccup mode ) all i o, lim ? 200 ? % 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 = 1.2vdc 81.5 % v in = v in, nom , t a =25c v o,set = 1.5vdc 84.0 % i o =i o, max , v o = v o,set v o,set = 1.8vdc 85.0 % v o,set = 2.5vdc 87.0 % v o,set = 3.3vdc 89.0 % v o,set = 5.0vdc 92.0 % 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 ? 200 ? 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 ? 25 ? s (dio/dt=2.5a/ s; v in = v in, nom ; t a =25c) all v pk ? 200 ? 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 ? 25 ? s
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a 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 ? 50 ? 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 ? 50 ? s (dio/dt=2.5a/ s; v in = v in, nom ; t a =25c) all v pk ? 50 ? 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 ? 50 ? s general specifications parameter min typ max unit calculated mtbf (i o =i o, max , t a =25c) 5,677,000 hours weight ? 2.8 (0.1) ? g (oz.)
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a 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 remote on/off signal interface (v in =v in, min to v in, max ; open collector pnp or equivalent compatible, von/off signal referenced to gnd see feature description section) logic low (on/off voltage pin open - module on) von/off all v il D D 0.4 v ion/off all i il D D 10 a logic high (von/off > 2.5v ? module off) von/off all v ih D D v in, max v ion/off all i ih D D 1 ma 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 3 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 3 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 6 msec output voltage overshoot ? startup D 1 % v o, set i o = i o, max ; v in = 10.0 to 14vdc, t a = 25 o c overtemperature protection all t ref ? 140 ? c (see thermal consideration section) input undervoltage lockout turn-on threshold all 8.2 v turn-off threshold all 8.0 v
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a output current lineage power 6 characteristic curves the following figures provide typical characteristics for the austin microlynx tm 12v sip modules at 25oc. 70 72 74 76 78 80 82 84 86 0 12345 v in = 14v v in = 12v v in = 10v 70 73 76 79 82 85 88 91 0 12345 v in = 14v v in = 12v v in = 10v efficiency, (%) output current, i o (a) efficiency, (%) output current, i o (a) figure 1. converter efficiency versus output current (vout = 1.2vdc). figure 4. converter efficiency versus output current (vout = 2.5vdc). 70 72 74 76 78 80 82 84 86 88 012345 v in = 14v v in = 12v v in = 10v 70 73 76 79 82 85 88 91 0 12345 v in = 14v v in = 12v v in = 10v efficiency, (%) output current, i o (a) efficiency, (%) output current, i o (a) figure 2. converter efficiency versus output current (vout = 1.5vdc). figure 5. converter efficiency versus output current (vout = 3.3vdc). 70 72 74 76 78 80 82 84 86 88 0 12345 v in = 14v v in = 12v v in = 10v 75 78 81 84 87 90 93 96 012345 v in = 14v v in = 12v v in = 10v efficiency, (%) output current, i o (a) efficiency, (%) output current, i o (a) figure 3. converter efficiency versus output current (vout = 1.8vdc). figure 6. converter efficiency versus output current (vout = 5.0vdc).
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a output current lineage power 7 characteristic curves (continued) the following figures provide typical characteristics for the microlynx tm 12v sip modules at 25oc. 0 0.5 1 1. 5 2 2.5 3 3.5 4 6 8 10 12 14 io = 0a io = 5a io = 2.5a 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 ( 5 ) figure 7. input voltage vs. input current (vout = 5.0vdc). 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 (2 s/div) output current, output voltage i o (a) (2a/div) v o (v) (100mv/div) time, t (5 s/div) figure 8. typical output ripple and noise (vin = 12v dc, vo = 0.75 vdc, io=5a). 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 (2 s/div) output current, output voltage i o (a) (2a/div) v o (v) (50mv/div) time, t (10 s/div) figure 9. typical output ripple and noise (vin = 12.0v dc, vo = 5.0 vdc, io=5a). figure 12. transient response to dynamic load change from 50% to 100% of full load (vo = 5.0 vdc, cext = 2x150 f polymer capacitors).
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a output current lineage power 8 characteristic curves (continued) the following figures provide typical characteristics for the austin microlynx tm 12v sip modules at 25oc. output current outputvoltage i o (a) (2a/div) v o (v) (50mv/div) time, t (10 s/div) output voltage, input voltage v o (v) (2v/div) v in (v) (5v/div) time, t (1 ms/div) figure 13. transient response to dynamic load change from 100% of 50% full load (vo = 5.0 vdc, cext = 2x150 figure 16. typical start-up with application of vin with (vin = 12vdc, vo = 3.3vdc, io = 5a). output voltage on/off voltage v o v) (2v/div) v on/off (v) (5v/div) time, t (1 ms/div) output voltage on/off voltage v o v) (1v/div) v on/off (v) (2v/div) time, t (1 ms/div) figure 14. typical start-up using remote on/off (vin = 12vdc, vo = 3.3vdc, io = 5.0a). figure 17 typical start-up using remote on/off with prebias (vin = 12vdc, vo = 1.8vdc, io = 1a, vbias =1.0 vdc). output voltage on/off voltage v o v) (1v/div) v on/off (v) (2v/div) time, t (1 ms/div) output current, i o (a) (5a/div) time, t (20ms/div) f igure 15. typical start-up using remote on/off with low-esr external capacitors (7x150uf polymer) ( vin = 12vdc , vo = 3.3vdc , io = 5.0a , co = 1050 ) (= =)
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a output current lineage power 9 characteristic curves (continued) the following figures provide thermal derating curves for the austin microlynx tm 12v sip modules. 0 1 2 3 4 5 6 20 30 40 50 60 70 80 90 nc 0.5m/s (100 lfm ) 0 1 2 3 4 5 6 20 30 40 50 60 70 80 90 nc 1.0m/s (200 lfm ) 0.5m/s (100 lfm ) 1.5m/s (300 lfm ) 2.0m/s (400 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 (vin = 12vdc, vo=0.75vdc). figure 22. derating output current versus local ambient temperature and airflow (vin = 12vdc, vo=5.0 vdc). 0 1 2 3 4 5 6 20 30 40 50 60 70 80 90 nc 1.0m/s (200 lfm) 0.5m/s (100 lfm ) output current, io (a) ambient temperature, t a o c figure 20. derating output current versus local ambient temperature and airflow (vin = 12vdc, vo=1.8 vdc). 0 1 2 3 4 5 6 20 30 40 50 60 70 80 90 nc 1.0m/s (200 lfm) 0.5m/s (100 lfm ) output current, io (a) ambient temperature, t a o c figure 21. derating output current versus local ambient temperature and airflow (vin = 12vdc, vo=3.3 vdc).
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a 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 23. 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 24. 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 25. output voltage and efficiency test setup. = v o . i o v in . i in x 100 % efficiency design considerations input filtering the austin microlynx tm 12v 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. in a typical application, 2x47 f low-esr tantalum capacitors (avx part #: tpse476m025r0100, 47f 25v 100 m ? esr tantalum capacitor) will be sufficient to provide adequate ripple voltage at the input of the module. to minimize ripple voltage at the input, low esr ceramic capacitors are recommended at the input of the module. figure 26 shows input ripple voltage (mvp-p) for various outputs with 2x47 f tantalum capacitors and with 2x 22 f ceramic capacitor (tdk part #: c4532x5r1c226m) at full load. input ripple voltage (mvp-p) 0 50 10 0 15 0 200 250 300 350 0 123456 ceramic tant alum output voltage (vdc) figure 26. input ripple voltage for various output with 2x47 f tantalum capacitors and with 2x22 f ceramic capacitors at the input (100% of io,max).
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a output current lineage power 11 document no: ds03-101 ver. 1.31 pdf name: microlynx_12v_sip_ds.pdf design considerations (continued) output filtering the austin microlynx tm 12v sip module is designed for low output ripple voltage and will meet the maximum output ripple specification with 1 f ceramic and 10 f polymer 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 april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a output current lineage power 12 feature description remote on/off the austin microlynx tm sip 12v power modules feature an on/off pin for remote on/off operation of the module. 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 module on and off using remote on/off, connect an open collector pnp transistor between the on/off pin and the v in pin (see figure 27). when the transistor q1 is in the off state, the power module is on (logic low on the on/off pin of the module) and the maximum von/off of the module is 0.4 v. the maximum allowable leakage current of the transistor when von/off = 0.4v and v in = v in,max is 10 a. during a logic-high when the transistor is in the active state, the power module is off. during this state von/off =10 - 14v and the maximum ion/off = 1ma. v in (+) gnd enable 20k 20k on/off pin css i on/off lynx-series module figure 27. remote on/off implementation remote on/off can also be implemented using open- collector logic devices with an external pull-up resistor. figure 27a shows the circuit configuration using this approach. pull-up resistor, r pull-up , for the configuration should be 68k (+/-5%) for proper operation of the module over the entire temperature range. q1 r1 r2 q2 css gnd pwm enable on/off vin+ on/off _ + v i module pull-up r on/off figure 27a. remote on/off implementation using logic-level devices and an external pull-up resistor 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 2a. 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 ref2 , (see figure 31) 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 restarts after it cools down.
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a output current lineage power 13 document no: ds03-101 ver. 1.31 pdf name: microlynx_12v_sip_ds.pdf feature descriptions (continued) output voltage programming the output voltage of the austin microlynx tm 12v sip can be programmed to any voltage from 0.75vdc to 5.0vdc by connecting a resistor (shown as rtrim in figure 28) between trim and gnd pins of the module. without an external resistor between trim and gnd pins, the output of the module will be 0.7525vdc. to calculate the value of the trim resistor, rtrim for a desired output voltage, use the following equation: ? ? ? ? ? ? ? ? = 1000 7525 . 0 10500 vo rtrim rtrim is the external resistor in ? vo is the desired output voltage for example, to program the output voltage of the austin microlynx tm 12v module to 1.8v, rtrim is calculated as follows: ? ? ? ? ? ? ? ? = 1000 7525 . 0 8 . 1 10500 rtrim = k rtrim 024 . 9 v o (+) trim gnd r trim load v in (+) on/off figure 28. circuit configuration to program output voltage using an external resistor austin microlynx tm 12vdc can also be programmed by applying a voltage between trim and gnd pins (figure 29). the following equation can be used to determine the value of vtrim needed to obtain a desired output voltage vo: {} () 7525 . 0 0667 . 0 7 . 0 ? ? = vo vtrim for example, to program the output voltage of a microlynx tm module to 3.3 vdc, vtrim is calculated as follows: {} ) 7525 . 0 3 . 3 0667 . 0 7 . 0 ( ? ? = vtrim v vtrim 530 . 0 = v o (+) trim gnd v t rim load v in (+) on/off + - figure 29. circuit configuration for programming output voltage using external voltage source table 1 provides rtrim values for most common output voltages. table 2 provides values of external voltage source, v trim for various output voltage. table 1 v o, set (v) rtrim ( k ? ) 0.7525 open 1.2 22.46 1.5 13.05 1.8 9.024 2.5 5.009 3.3 3.122 5.0 1.472 table 2 v o, set (v) vtrim (v) 0.7525 open 1.2 0.670 1.5 0.650 1.8 0.630 2.5 0.583 3.3 0.530 5.0 0.4166 using 1% tolerance trim re sistor, 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.
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a output current lineage power 14 feature descriptions (continued) the amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. when using the trim feature, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (p max = v o,set x i o,max ). voltage margining output voltage margining can be implemented in the austin microlynx tm modules by connecting a resistor, r margin-up , from trim pin to ground pin for margining-up the output voltage and by connecting a resistor, r margin-down , from trim pin to output pin. figure 30 shows the circuit configuration for output voltage margining. the pol programming tool, available at www.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 30. circuit configuration for margining output voltage.
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a output current lineage power 15 document no: ds03-101 ver. 1.31 pdf name: microlynx_12v_sip_ds.pdf thermal considerations power modules operate in a variety of thermal environments; however, sufficient cooling should 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 wi nd tunnel. the test set- up is shown in figure 32. note that the airflow is parallel to the long axis of the module as shown in figure 31. the derating data applies to airflow in either direction of the module?s long axis. air flow t ref2 top view bottom view t ref1 (inductor winding) figure 31. t ref temperature measurement location. the thermal reference point, t ref 1 used in the specifications of thermal derating curves is shown in figure 31. for reliable operation this temperature should not exceed 125 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 32. thermal test set-up. heat transfer via convection increased airflow over the module enhances the heat transfer via convection. thermal derating curves showing the maximum output current that can be delivered by various module versus local ambient temperature (t a ) for natural convection and up to 1m/s (200 ft./min) are shown in the characteristics curves section. layout considerations copper paths must not be routed beneath the power module. for additional layout guide-lines, refer to fltr100v10 application note. a ir flow x power module w ind tunnel pwbs 7.24_ (0.285) 76.2_ (3.0) probe location for measuring airflow and ambient temperature 25.4_ (1.0)
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a output current lineage power 16 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 april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a output current lineage power 17 document no: ds03-101 ver. 1.31 pdf name: microlynx_12v_sip_ds.pdf 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.)
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5v dc output; 5a output current lineage power 18 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.)
data sheet april 1, 2008 austin microlynx tm 12v sip non-isolated power modules: 10 ? 14vdc input; 0.75vdc to 5.5vdc output; 5a output current lineage power 19 document no: ds03-101 ver. 1.31 pdf name: microlynx_12v_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@ 5a on/off logic connector type comcodes AXA005A0Xz 10 ? 14vdc 0.75 ? 5.5vdc 5 a 89.0% negative sip cc109101284 AXA005A0X 10 ? 14vdc 0.75 ? 5.5vdc 5 a 89.0% negative sip 108981614 -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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