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rev.10.13.14_#1.1 ave240c-48s12 page 1 technical reference note ave240c-48s12 240 watts half-brick converter total power: 240 watts input voltage: 36 to 75 vdc # of outputs: single product descriptions the ave240c-48s12 is a single output dc-dc converter with stan dard half- brick form factor and pin configuration. it delivers up to 20a ou tput current with 12v output voltage. ultal-high 94.6% efficiency and excellen t thermal performance makes it an ideal choice to use in telecom and datacom applications and can operate under an ambient temperature ran ge of -40 o c ~ +85 o c. applications telecom/ datacom special features ? delivering up to 20a output ? ultra-high efficiency 94.6% typ. at full load;95% typ. at half load ? wide input range: 36v ~ 75v ? excellent thermal performance ? no minimum load requirement ? rohs compliant ? remote on/off control function ? remote output sense ? trim function: -10% ~ +10% ? input under voltage lockout ? output over current protection ? output over voltage protection ? over temperature protection ? industry standard half-brick pin-out outline ? pin length optional safety iec/en/ul/csa 60950 ce mark tuv fcc class a en55022 class a
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 2 technical reference note artesyn embedded technologies model numbers ordering information options none standard output voltage structure remote on/off logic r ohs status ave240c-48s12-4l 12vdc baseplated negative r6 ave240c-48s12p-4l 12vdc baseplated positive r6 ave240 c - 48 s 12 p - 4 l series name ave: series name, 240: rated output powe r 240w version c: version c input voltage 48: 36v ~ 75v input range, rated input voltage 48v output number s: single output rated output voltage 12: 12v output remote on/off logic p: positive logic; default: negat ive logic, pin length 4: 4.80 mm 0.5mm rohs status l: rohs, r6
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 3 technical reference note artesyn embedded technologies table 1. absolute maximum ratings: parameter model symbol min typ max unit input voltage operating -continuous non-operating -100ms all all v in,dc -- -- 80 100 vdc vdc maximum output powerff all p o,max - - 240 w isolation voltage 1 input to output input to baseplate outputs to baseplate all -- - -- - 1500 1500 500 vdc vdc vdc ambient operating temperature all t a -40 - +85 o c storage temperature all t stg -55 - +125 o c humidity (non-condensing) operating non-operating all all -- -- 95 95 %% voltage at remote on/off pin all -0.7 - +12 v note1:1ma for 60s,slew rate = 1500v/10s electrical specifications absolute maximum ratings stress in excess of those listed in the ?absolute ma ximum ratings? may cause permanent damage to the powe r supply. these are stress ratings only and functional operatio n of the unit is not implied at these or any other co nditions above those given in the operational sections of this trn. exposure to any absolute maximum rated condition fo r extended periods may adversely affect the power supply?s reliabi lity.
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 4 technical reference note artesyn embedded technologies input specifications table 2. input specifications: parameter conditions 1 symbol min typ max unit operating input voltage, dc all v in,dc 36 48 75 vdc turn-on voltage threshold i o = i o, max v in,on 31 35.1 36 vdc turn-off voltage threshold i o = i o, max v in,off 30 33.6 35 vdc lockout voltage hysteresis i o = i o, max 1 1.5 3 v maximum input current (i o = i o ,max) v in,dc = 36v dc i in,max - - 8 a no-load input current i o = 0a i in - - 0.09 a standby input current remote off i in - - 0.05 a inrush current transient rating power on - - 2 a 2 s recommended input fuse fast blow external fuse recommended - - 20 a input filter component values (c\l) internal values 11 \1 f\ h recommended external input capacitance low esr capacitor recommended c in - 100 - uf input reflected ripple current through 12uh inductor - - 80 ma operating efficiency t a =25 o c i o = i o,max i o = 50%i o,max -- 94.6 95 -- %% note 1 - ta = 25 o c, airflow rate = 400 lfm, vin = 48vdc, nominal vout unless otherwise noted.
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 5 technical reference note artesyn embedded technologies table 3. output specifications: parameter condition 1 symbol min typ max unit factory set voltage v in,dc = 48v dc i o =i o,max v o 11.8 12.0 12.2 vdc total regulation inclusive of line, load temperature change, warm-up drift v o 11.9 12.0 12.1 vdc output voltage line regulation all %v o - 0.05 - % output voltage load regulation all %v o - 0.1 - % output voltage temperature regulation all %v o - 0.02 - %/ o c output voltage trim range all v o 10.8 - 13.2 v output ripple, pk-pk measure with a 1uf ceramic capacitor in parallel with a 10uf tantalum capacitor, 0 to 20mhz bandwidth v o - 150 180 mv pk-pk output current all i o 0 - 20 a output dc current-limit inception 2 i o 22 24 28 a v o load capacitance 3 all c o 470 - 10000 uf v o dynamic response peak deviation settling time (recovery to within 1% vo,max) 50%~75%~50% load change slew rate = 0.1a/us v o t s -- 230 40 -- mv usec 50%~75%~50% load change slew rate = 1a/us v o t s -- 281 70 -- mv usec turn-on transient rise time i o = i max t rise - 25 - ms turn-on delay time i o = i max t turn-on - 60 - ms output voltage overshoot i o = imax t a = 25 c %v o - 0 - % note 1 - ta = 25 o c, airflow rate = 400 lfm, vin = 48vdc, nominal vout unless otherwise noted. note 2 - hiccup: auto-restart when over-current condition is removed. note 3 - high frequency and low esr is recommended. output specifications
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 6 technical reference note artesyn embedded technologies table 3. output specifications, con?t: parameter conditions 1 symbol min typ max unit switching frequency all f sw 265 270 275 khz remote on/off control (positive logic) off-state voltage all -0.7 - 1.2 v on-state voltage all 3.5 - 12 v remote on/off control (negative logic) off-state voltage all 3.5 - 12 v on-state voltage all -0.7 - 1.2 v output over-voltage protection 4 all v o 14.6 - 16 v output over-temperature protection 5 all t - 118 - o c over-temperature hysteresis all t - 10 - o c output voltage remote sense range all v o - - 0.5 v mtbf telcordia sr-332- 2006; 80% load, 300lfm, 40 o c t a - 1.5 - 10 6 h note 4 ? hiccup: auto-restart when over-voltage condition is removed. note 5 ? auto recovery. output specifications
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 7 technical reference note artesyn embedded technologies ave240c-48s12 performance curves figure 1: ave240c-48s12 input reflected ripple curre nt waveform (2us/div, 20ma/div) figure 2: ave240c-48s12 ripple and noise measurement (2us/div, 20mv/div) figure 3: ave240c-48s12 output voltage startup ch aracteristic (5ms/div) ch 1: vo (5v/div) ch 2: vin (20v/div) figure 6: ave240c-48s12 remote off waveform (5ms/div ) ch 1: vo (5v/div) ch 2: remote off (2v/div) figure 5: ave240c-48s12 remote on waveform (5ms/div) ch 1: vo (5v/div) ch 2: remote on (2v/div) figure 4: ave240c-48s12 turn off characteristic (2ms /div) ch 1: vo (5v/div) ch 2: vin (20v/div)
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 8 technical reference note artesyn embedded technologies figure 9: ave240c-48s12 efficiency curves @ 25 o c, vo=12v ave240c-48s12 performance curves figure 7: ave240c-48s12 transient response (2ms/div) 50%~75%~50% load change, 0.1a/us slew rate ch 1: vo (200mv/div) ch 2: io (0.1a/div) figure 8: ave240c-48s12 transient response (2ms/div) 50%~75%~50% load change, 1a/us slew rate ch 1: vo (200mv/div) ch 2: io (1a/div) 50 55 60 65 70 75 80 85 90 95 100 2 4 6 8 10 12 14 16 18 20 output current (a) effic ienc y (% ) vin=36v vin=48v vin=75v
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 9 technical reference note artesyn embedded technologies mechanical specifications mechanical outlines 0.3[0.012]min 12.7 [0.500] l 57.9 [2.280] 48.26 [1.900] 9 8 7 6 5 1 2 3 4 50.8 [2.000] 35.56 [1.400] 15.24 [0.600] 61.0[2.402] 50.8 [2.000] 35.56 [1.400] 15.24 [0.600] bottom view side view 4-m3/ 3.4 4- 4.5 0.1 2- 2.0 0.1 7- 1.0 0.1 load board unit: mm[inch] bottom view: pin on upside tolerance: x.xmm 0.5mm[x.x in. 0.02in.] x.xxmm 0.25mm[x.xx in. 0.01in.]
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 10 technical reference note artesyn embedded technologies pin length options pin designations pin no name function 1 vin+ positive input voltage 2 cnt remote on/off control 3 case 4 vin- negative input voltage 5 vo- negative output voltage 6 s- negative remote sense 7 trim output voltage trim 8 s+ positive remote sense 9 vo+ positive output voltage device code suffix l -4 4.8mm 0.5 mm -6 3.8mm 0.5 mm -8 2.8mm 0.5 mm none 5.8mm 0.5 mm
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 11 technical reference note artesyn embedded technologies environmental specifications emc immunity ave240c-48s12 series power supply is designed to mee t the following emc immunity specifications: criterion a: normal performance during and after tes t. criterion b: for eft and surges, low-voltage protect ion or reset is not allowed. temporary output voltag e fluctuation ceases after disturbances ceases, and from which the eu t recovers its normal performance automatically. for dips and esd, output voltage fluctuation or rese t is allowed during the test, but recovers to its no rmal performance automatically after the disturbance ceases. criterion c: temporary loss of output, the correction of which requires operator intervention. criterion d: loss of output which is not recoverable, owing to damage to hardware. document description criteria en55022, class a limits conducted and radiated emi li mits / iec/en 61000-4-2, level 3 electromagnetic compatibility (emc) - testing and meas urement techniques - electrostatic discharge immunity test. enclos ure port b iec/en 61000-4-4, level 3 electromagnetic compatibility (emc) - testing and meas urement techniques, electrical fast transient. dc input port. b iec/en 61000-4-5 electromagnetic compatibility (emc) - testing and meas urement techniques, immunity to surges - 600v common mode and 6 00v differential mode for dc ports b iec/en 61000-4-6, level 2 electromagnetic compatibility (emc) - testing and meas urement techniques, continuous conducted interference. dc inpu t port a en61000-4-29 electromagnetic compatibility (emc) - testing and meas urement techniques, voltage dips and short interruptions and voltage variations. dc input port b
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 12 technical reference note artesyn embedded technologies emc filter configuration figure 10 emc test configuration c1/c7: 1000nf/100v x7r ceramic capacitor c2: 100nf/100v x7r ceramic capacitor c3: 100 f/100v electrolytic capacitor c6: 470 f/50v electrolytic capacitor c4/c5: 0.1u/1000v x7r ceramic capacitor l1: 809 h- 25%-9.7a-r5k common-mode inductor dc/dc load c8 c2 c3 l1 c1 c7 c4 c5 gnd gnd rtn -48v vcc + +
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 13 technical reference note artesyn embedded technologies safety certifications the ave240c-48s12 power supply is intended for inclus ion in other equipment and the installer must ensur e that it is in compliance with all the requirements of the end appli cation. this product is only for inclusion by profession al installers within other equipment and must not be operated as a stand alone product. table 4. safety certifications for ave240c-48s12 seri es power supply system document file # description ul/csa 60950 us and canada requirements en60950 european requirements iec60950 international requirements tuv german requirements ce ce marking
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 14 technical reference note artesyn embedded technologies operating temperature the ave240c series power supplies will start and op erate within stated specifications at an ambient temp erature from -40 o c to 85 o c under all load conditions. the storage temperature is -55 o c to 125 o c. thermal considerations the converter is designed to operate in different thermal env ironments and sufficient cooling must be provided. proper cooling of the dc-dc converter can be verified by measur ing the temperature at the test point(s). the temperature at this/these point(s) should not exceed the max values in the table 5. the converter can operate in an enclosed environment without f orced air convection. cooling of the converter is achieved mainly by conduction from the baseplate to a heatsink. the conver ter can deliver full output power at 85 o c ambient temperature provided the baseplate temperature is kept belo w the max values in the following table. figure 11 test point on baseplate table 5 temperature limit of the test points test point temperature limit test point 113 o c
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 15 technical reference note artesyn embedded technologies thermal considerations, con?t the converter can also operate with a smaller heatsink and suff icient airflow. figure 14 shows the derating output current vs. ambient air temperature at different air velocity with a s pecified heatsink. the typical test condition is shown in figure 12. figure 12 typical test condition, forced airflow direct ion is from v in - to v in + figure 13 outline drawing of the heatsink 57.90 4- 3.50 4- 8.00 10.00 50.80 0.1 61.00 48.30 0.1 4.00 25.40 2.00 3.50 2.45 2.45 53.00 2 9+3.3 10
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 16 technical reference note artesyn embedded technologies thermal considerations, con?t the converter can operate with a smaller heatsink and sufficient airflow. figure 14 shows the derating out put current vs. ambient air temperature at different air velocities with a specified heatsink. . figure 14 output power derating, 48v in , air flowing across the converter from v in - to v in + 0 5 10 15 20 25 40 55 70 85 temperature: ta ( ) output current io (a) 400lfm(2m/s) 300lfm(1.5m/s) 200lfm(1m/s) 100lfm(0.5m/s) 0lfm(0m/s)
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 17 technical reference note artesyn embedded technologies qualification testing parameter unit (pcs) test condition halt test 4-5 t a,min -10 o c to t a,max +10 o c, 5 o c step, v in = min to max, 0 ~ 105% load vibration 3 frequency range: 5hz ~ 20hz, 20hz ~ 200hz, a.s.d: 1.0m 2 /s 3 , -3db/oct, axes of vibration: x/y/z. time: 30min/axes mechanical shock 3 30g, 6ms, 3axes, 6directions, 3time/di rection thermal shock 3 -40 o c to 100 o c, unit temperature 20cycles thermal cycling 3 -40 o c to 55 o c, temperature change rate: 1 o c/min, cycles: 2cycles humidity 3 40 o c, 95%rh, 48h solder ability 15 ipc j-std-002c-2007
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 18 technical reference note artesyn embedded technologies application notes typical application below is the typical application of the ave240c-48s12 series power supply. figure 15 typical application c1: 100 f/100v electrolytic capacitor, p/n: upw2a101mhd (nichicon) or eq uivalent caps c2: 1 f/100v x7r ceramic capacitor, p/n: c3225x7r2a105kt0l0u (tdk) or equivalent caps c3: 1 f/25v x7r ceramic capacitor, p/n: c3225x7r1e105kt000n (tdk) o r equivalent caps c4: 470 f electrolytic capacitor, p/n: uud1h471mnl1gs (nichicon) or equi valent caps fuse: external fast blow fuse with a rating of 20a. the recomme nded fuse model is 314020p mxp from littlefuse. fuse vdc c1 c2 vin+ vin- ave240c-48s12 c3 c4 load vo+ s+ trim s- vo- cnt
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 19 technical reference note artesyn embedded technologies remote on/off either positive or negative remote on/off logic is a vailable in ave240c-48s12. the logic is cmos and ttl compatible. the following figure is the detailed internal circuit and reference in ave240c-48s12. figure 16 remote on/off internal diagram remote on/off remote on/off 10v 12.4k 15k 10k pwm controller pwm controller 10v 12.4k 10k 2.0v negative logic positive logic
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 20 technical reference note artesyn embedded technologies trim characteristics connecting an external resistor between trim pin and v o - pin will decrease the output voltage. while connecting it bet ween trim and v o + will increase the output voltage. the following equations d etermine the external resistance to obtain the trimmed output voltage. : nominal output voltage. for example, to get 13.2v output, the trimming resi stor is the output voltage can also be trimmed by potential a pplied at the trim pin. where v tim is the potential applied at the trim pin, and v o is the desired output voltage. figure 17 trim up figure 18 trim down when trimming up, the output current should be decrea sed accordingly so as not to exceed the maximum output power and the minimum input voltage should be increased as shown in figure 19. figure 19 output trim voltage vs. input voltage ) (2 1 ? ? = ? k r down adj ( ) ) ( 2 1 225 . 1 1 ? ? + ? ? ? + = ? k v r nom up adj nom desired nom v v v ? = ? ( ) = + ? + = ? k k r up adj 75. 95 ) ( 1 . 0 1.0 2 1 1 . 0 225 . 1 1.0 1 12 8.9 ) 225 .1 ( + = trim o v v load cout vo+ s+ trim s- vo- r trim _up load cout vo+ s+ trim s- vo- r trim _down output voltage(v) 12.9 13.2 36 38 48 input voltage(v) nom v
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 21 technical reference note artesyn embedded technologies input ripple & output ripple & noise test configura tion figure 20 input ripple & inrush current, output rip ple & noise test configuration vdc: dc power supply l1: 12 h cin: 220 f/100v typical c1 ~ c4: see figure 15 note: it is recommended to use a coaxial cable with se ries 50 resistor and 0.68 f ceramic capacitor or a ground ring of probe to test output ripple & noise. l1 vdc c1 c2 vin+ vin- dc/dc c3 c4 load vo+ vo- cin probe 50mm current probe
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 22 technical reference note artesyn embedded technologies sense characteristics if the load is far from the unit, connect s+ and s- to the termina l of the load respectively to compensate the voltage drop on the transmission line. see figure 18. if the sense compensate function is not necessary, connect s+ to v o + and s- to v o - directly.
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 23 technical reference note artesyn embedded technologies soldering the product is intended for standard manual or wave soldering . when wave soldering is used, the temperature on pins is specif ied to maximum 260 o c for maximum 7s. when soldering by hand, the iron temperature should be maint ained at 300 o c ~ 380 o c and applied to the converter pins for less than 10s. longer exposure can cause internal damage to the converter. .
technical reference note rev.10.13.14_#1.1 ave240c-48s12 page 24 technical reference note for more information: www.artesyn.com/power for support: productsupport.ep@artesyn.com hazardous substances announcement (rohs of china) parts hazardous substances pb hg cd cr 6+ pbb pbde ave240c-48s12-14l x x x x x x ave240c-48s12p-14l x x x x x x AVE240C-48S12-14Y x x x x x ave240c-48s12p-14y x x x x x : means the content of the hazardous substances in all the average quality materials of the part is within the limits specified in sj/t-11363-2006 : means the content of the hazardous substances in at least one of the average quality materials of the pa rt is outside the limits specified in sj/t11363-2006 artesyn embedded technologies has been committed to th e design and manufacturing of environment-friendly products. it will reduce and eventually eliminate the hazardous substances in the products through unremitti ng efforts in research. however, limited by the current technical leve l, the following parts still contain hazardous substa nces due to the lack of reliable substitute or mature solution: 1. solders (including high-temperature solder in par ts) contain plumbum. 2. glass of electric parts contains plumbum. 3. copper alloy of pins contains plumbum

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