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v48sc 05013 65 w dc /dc power modules ds_ v48sc 05013 _ 0 626 2013 e - mail : dcdc @ d elta.com.tw http:// www.del taww.com/dcdc p1 features ? hi gh efficiency : 9 1.5 % @ 5 v/ 13 a ? size: ? w ithout heat spreader: 33.0mm * 22.8mm * 9.5 mm( 1.30 * 0.90 *0.37 ) w ith heat spreader: 33.0mm * 22.8mm * 12.7mm(1.30 *0. 90 *0.50 ) ? standard footprint ? industry standard pin out ? fixed frequency operation ? input uvl o ? hiccup output over current protection (ocp) ? hiccup output over voltage protection (ovp) ? auto recovery otp ? monotonic startup into normal and pre - biased loads ? 150 0 v isolation and basic insulation ? no minimum load required ? iso 9001, tl 9000, iso 14001, qs9000, ohsas18001 certified manufacturing facility ? ul/cul 60950 - 1 (us & canada) recognized delphi series v48sc , sixteenth brick family dc/dc power modules: 36 ~ 75 v in, 5 v/ 13 a out, 65 w the delphi module v48sc 05013 , sixteenth brick, 36 ~ 75 v input, single output, isolated dc/dc converter is the latest offering from a world leader i n power system and technology and manufacturing D delta electronics, inc. this product provides up to 65 watts of power in an industry standard footprint and pin out. with creative design technology and optimization of component placement, these converters possess outstanding electrical and thermal performances, as well as extremely high reliability under highly stressful operating conditions. the v48sc 05013 offers more than 9 1.5 % high efficiency at 13 a load. applications ? telecom / datacom ? wireless netwo rks ? optical network equipment ? server and data storage ? industrial / testing equipment options ? positive or negative on/off logic ? h eat spreader or open frame ? smd or through - hole pin
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 2 technical specificat ions t a =25c , natural convection , vin = 48 vdc, nominal vout unless otherwise noted; parameter notes and conditions v48sc 050 13 min. typ. max. units absolute maximum ratings input voltage continuous 36 75 vdc transient 100ms 100 vdc operatin g ambient temperature - 40 85 c storage temperature - 55 125 c input/output isolation voltage 1500 vdc input characteristics operating input voltage 36 48 75 vdc input under - voltage lockout turn - on voltage threshold 32.0 34.0 36.0 vdc turn - off voltage threshold 30.0 32.0 34.0 vdc lockout hysteresis voltage 2 vdc maximum input current full load, 36 vin 2.4 a no - load input current vin=48v, io=0a 5 0 ma off converter input current vin=48v, io=0a 10 ma inrush current (i2t) 1 a2s input reflected - ripple current p - p thru 12h inductor, 5hz to 20mhz 2 0 ma input vo ltage ripple rejection 120 hz - 5 0 db output characteristics output voltage set point vin=48v, io=0, tc=25c 4 . 9 25 5. 0 5.075 vdc output voltage regulation over load vin=48v, io= io min to io max 1 0 mv over line vin= 36 v to 75 v, io=io min 1 0 mv over temperature vin=48v , tc= min to max case temperature 33 mv total output voltage range over sample load, line and temperature 4 . 85 5 . 15 vdc output voltage ripple and noise 5hz to 20mhz bandwidth peak - to - peak full load, 1f ceramic, 10f tantalum 80 mv rms full load, 1f ceramic, 10f tantalum 30 mv operating output current range 0 13 a output dc current - limit inception output voltage 10% low 14.3 1 9 .5 a dynamic characteristics output voltage current transient 48v, 10 f tan & 1f ceramic load cap, 0.1a/s positive step change in output current 50% io.max to 75% 1 00 mv negative step change in output current 75% io.max to 50% 1 0 0 mv settling time (within 1% vout nominal) 300 s turn - on transient st art - up time, from on/off control 3 0 m s start - up time, from input 3 0 m s maximum output capacitance 0 5 000 f efficiency 100% load vin=48v 91.5 % 60% load vin=48v 9 1. 0 % isolation characteristics input to output 1500 vdc iso lation resistance 10 m isolation capacitance 1 0 00 pf feature characteristics switching frequency 420 465 510 khz on/off control, negative remote on/off logic logic low (module on) von/off at ion/off=1.0ma 0 0.8 v logic high (module off) von/off at ion/off =0.0 a 3.5 10 v on/off current (for both remote on/off logic) ion/off at von/off=0.0v ma leakage current (for both remote on/off logic) logic high, von/off=1 0 v ua output voltage trim range - 20 10 % output voltage remote sense range 10 % o utput over - voltage protection % of nominal vout 1 15 1 5 0 % general specifications mtbf io=80% of io max; tc=25c;airflow=300lfm , issue 3 1 6.15 m hours weight(with out heat spreader) 18.0 g rams weight(with heat spreader) 28.0 grams over - tem perature shutdown ( without heat spreader) refer to figure 18 for hot spot 1 location (48vin,80% io, 200lfm,airflow from vo+ to vin+) 135 c over - temperature shutdown ( with heat spreader) refer to figure 20 for hot spot 2 location (48vin,80% io, 200l fm,airflow from vo+ to vin+) 118 c over - temperature shutdown ( ntc resistor ) refer to figure 18 for ntc resistor location 125 c note: please attach thermocouple on ntc resistor to test otp function, the hot spots temperature is just for referenc e.
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 3 electrical character istics curves figure 1: efficiency vs. load current for 36v, 48v , and 75 v input voltage at 2 5 c. figure 2: power dissipation vs. load current for 36v, 48v, and 75 v input voltage at 2 5 c. figure 3: f ull load input characteristics at room temperature.
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 4 electrical character istics curves for negative remote on/off logic figure 4: turn - on transient at zero load current) ( 1 0 ms/di v). top trace: vout; 2 v/di v; bottom trace: on/off input: 5 v/div. figure 5: turn - on transient at full load current ( 1 0 ms/div). top trace: vout: 2 v/di v; bottom trace: on/off input: 5 v/div. for input voltage start up figure 6: turn - on transient a t zero load current ( 1 0 ms/div). top trace: vout; 2 v/div; bottom trace: input voltage : 30 v/div. figure 7 : turn - on transient at full load current ( 1 0 ms/div). top trace: vout; 2 v/div; bottom trace: input voltage : 30v/div.
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 5 electrical character istics cur ves figure 8: output voltage response to step - change in load current (50% - 75% - 50% of full load; di/dt = 0.1a/s). load cap: 10f, tantalum capacitor and 1f ceramic capacitor. top trace: vout; 100mv/div; bottom trace: output current: 5a/div, time: 100us/div figure 9: output voltage response to step - change in load current (50% - 75% - 50% of full load; di/dt = 2.5a/s). load cap: 10f, tantalum capacitor and 1f ceram ic capacitor. top trace: vout; 2 00mv/div; bottom trace: output current: 5a/div, time: 100us/div figure 10: test set - up diagram showing measurement points for input terminal ripple current and input reflected ripple current. note: measured input reflected - ripple current with a simulated source inductance ( l test ) of 12 h. capacitor cs offset possible battery impedance. measure current as shown above. figure 11: input terminal ripple current, i c , at max output current and nominal input voltage with 12h source impedance and 33 f electrolytic capacitor ( 10 0 ma/d iv 2us/div ).
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 6 electrical character istics curves figure 12: input reflected ripple current, i s , through a 12h source inductor at nominal input voltage and max load current ( 1 0 ma/div 2us/div ). figure 13: output voltage noise and ripple measureme nt test setup. figure 14: output voltage ripple at nominal input voltage and max load current ( 20 mv/div , 2us/div ) load capacitance: 1f ceramic capacitor and 10f tantalum capacitor. bandwidth: 20 mhz. figure 15: output voltage vs. load curre nt showing typical current limit curves and converter shutdown points.
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 7 design consideration s input source impedance the impedance of the input source connecting to the dc/dc power modules will interact with the modules and affect the stabi lity. a low ac - impedance input source is recommended. if the source inductance is more than a few h, we advise 100f electrolytic capacitor (esr < 0.7 at 100 khz) mounted close to the input of the module to improve the stability. layout and emc conside rations deltas dc/dc power modules are designed to operate in a wide variety of systems and applications. for design assistance with emc compliance and related pwb layout issues, please contact deltas technical support team. an external input filter mod ule is available for easier emc compliance design. below is the reference design for an input filter tested with v48sc 05013 to meet class a in cisspr 22 . schematic and components list c1= 3.3 uf/100 v c2= 47uf/100 v c3= 47uf/100 v c4=c5=1nf/250volt t 1= 1m h , common choke type p53910(pulse) test result: at t = +25 ? c , vin = 48 v and full load green line is quasi peak mode; blue line is average mode. emi test posi tive line emi test negative line safety considerations the power module must be installed in compliance with the spacing and separation requirements of the end - users safety agency standard, i.e., ul60950 - 1, csa c22.2 no. 60950 - 1 2nd and iec 60950 - 1 2nd : 2005 and en 60950 - 1 2nd: 2006+a11+a1: 2010, if the sys tem i n which the power module is to be used must meet safety agency requirements.
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 8 features description s over - current protection the modules include an inte rnal output over - current protection circuit, which will endure current limiting for an unlimited duration during output overload. if the output current exceeds the ocp set point, the modules will shut down , and will try to restart after shutdown (hiccup mod e) . if the overload condition still exists, the module will shut down again. this restart trial will continue until the overload condition is corrected. over - voltage protection the modules include an internal output over - voltage protection circuit, which monitors the voltage on the output terminals. if this voltage exceeds the over - voltage set point, the protection circuit will constrain the max duty cycle to limit the output voltage, if the output voltage continuously increases the modules will shut down , and then restart after a hiccup - time (hiccup mode). over - temperature protection the over - temperature protection consists of circuitry that provides protection from thermal damage. if the temperature exceeds the over - temperature threshold the module wil l shut down . the module will restart after the temperature is within specification. remote on/off the remote on/off feature on the module can be either negative or positive logic. negative logic turns the module on during a logic low and off during a logi c high. positive logic turns the modules on during a logic high and off during a logic low. remote on/off can be controlled by an external switch between the on/off terminal and the vi ( - ) terminal. the switch can be an open collector or open drain. f or negative logic if the remote on/off feature is not used, please short the on/off pin to vi ( - ). for positive logic if the remote on/off feature is not used, please leave the on/off pin to floating. figure 16: remote on/off implementation basic insulati on based on 75 vdc input is provided between the input and output of the module for the purpose of applying insulation requirements when the input to this dc - to - dc converter is identified as tnv - 2 or selv. an additional evaluation is needed if the source is other than tnv - 2 or selv. when the input source is selv circuit, the power module meets selv (safety extra - low voltage) requirements. if the input source is a hazardous voltage which is greater than 60 vdc and less than or equal to 75 vdc, for th e modu les output to meet selv requirements, all of the following must be met: ? the input source must be insulated from the ac mains by reinforced or double insulation. ? the input terminals of the module are not operator accessible. ? a selv reliability test is c onducted on the system where the module is used , in combination with the module, to ensure that under a single fault, hazardous voltage does not appear at the modules output. when installed into a class ii equipment (without grounding), spacing considera tion should be given to the end - use installation, as the spacing between the module and mounting surface have not been evaluated. the power module has extra - low voltage (elv) outputs when all inputs are elv. this power module is not internally fused. to achieve optimum safety and system protection, an input line fuse is highly recommended. the safety agencies r equire a normal - blow fuse with 20 a maximum rating to be installed in the ungrounded lead. a lower rated fuse can be used based on the maximum inrus h transient energy and maximum input current. soldering and cleaning considerations post solder cleaning is usually the final board assembly process before the board or system undergoes electrical testing. inadequate cleaning and/or drying may lower the reliability of a power module and severely affect the finished circuit board assembly test. adequate cleaning and/or drying is especially important for un - encapsulated and/or open frame type power modules. for assistance on appropriate soldering and cleani ng procedures, please contact deltas technical support team.
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 9 output voltage adjustment (trim) to increase or d ecrease the output voltage set point, connect an external resistor between the trim pin and the sense(+) or sense( - ). the trim pin should be left open if this feature is not used. for trim down, t he external resistor value required to obtain a percentage of output voltage change % is defined as: ex. when trim - down - 2 0% ( 5. 0 v0. 8 = 4.0 v) for trim up, t he external resistor value require d to obtain a percentage output voltage change % is defined as: ex. when trim - up +10% ( 5.0 v1.1= 5.5 v) the output voltage can be increased by both the remote sense and the trim, however the maximum increase is the larger of either the remote sense or the trim, not the sum of both. when using remote sense and trim, the output voltage of the module is usually increased, which increases the power output of the module with the same output current. care should be taken to ensure that the maximum output power of the module remains at o r below the maximum rated power. thermal consideratio ns thermal management is an important part of the system design. to ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. convection cooling is usually the dominant mode of heat transfer. hence, the choice of equipment to characterize the t hermal performance of the power module is a wind tunnel. thermal testing setup deltas dc/dc power modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment. this type of eq uipment commonly uses vertically mounted circuit cards in cabinet racks in which the power modules are mounted. the following figure shows the wind tunnel characterization setup. the power module is mounted on a test pwb and is vertically positioned withi n the wind tunnel. the space between the neighboring pwb and the top of the power module is constantly kept at 6.35mm (0.25). figure 17: wind tunnel test setup thermal derating heat can be removed by increasing airflow over the module. to enhance system reliability, the power module should always be operated below the maximum operating temperature. if the temperature exceeds the maximum module temperature, reliability of the unit may be affected. ? ? ? ? ? ? ? ? ? ? ? ? ? k down rtrim 22 . 10 511 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? k k down rtrim 33 . 15 22 . 10 20 511 ? ? ? ? ? ? ? ? ? ? ? k up rtrim 22 . 10 511 1.225 ) (100 vo 11 . 5 ? ? ? ? ? ? ? ? ? ? ? ? k up rtrim 1 . 168 22 . 10 10 511 10 225 . 1 ) 10 100 ( 0 . 5 11 . 5 air flow module pwb 50.8(2.00") air velocity and ambient temperature sured below the module fancing pwb note: wind tunnel test setup figure dimensions are in millimeters and (inches)
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 10 thermal curves (with out heat spreader) figure 18 : * hot spot 1& ntc resi s tor temperature measured points , t he allowed maximum hot spot 1 temperature is defined at 122 figure 19: output current vs. ambient temp erature and air velocity @vin=48v (either orientation , without heat spreader ) thermal curves (with heat spreader) figure 20 : * hot spot 2 temperature measured point ,t he allowed maximum hot spot 2 temperat ure is defined at 111 figure 21 : output current vs. ambient temperature and air velocity @vin=48v (either orientation , with heat spreader ) ntc resistor hot spot1 airflow 0 2 4 6 8 10 12 14 25 30 35 40 45 50 55 60 65 70 75 80 85 output current (a) ambient temperature ( ) v48sc05013(standard) output current vs. ambient temperature and air velocity @vin = 48v (either orientation) natural convection 100lfm 200lfm 300lfm hot spot2 airflow 0 2 4 6 8 10 12 14 25 30 35 40 45 50 55 60 65 70 75 80 85 output current (a ) ambient temperature ( ) v48sc05013(standard) output current vs. ambient temperature and air velocity @vin = 48v (either orientation,with heatspreader) natural convection 100lfm
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 11 pick and place locat ion recommend ed pad layout (smd) surface - mount tape & reel
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 12 leaded (sn/pb) process recommend temp. profile (for smd models) note: the temperature refers to the pin of v48 s c , measured on the pin +vout joint. lead free (sac) proc ess recommend temp. prof ile (for smd models) note: the temperature refers to the pin of v48s c , measured on the pin +vout joint. temp . time 150 200 100~140 sec. time limited 90 sec. above 217 217 preheat time ramp up max. 3 ramp down max. 4 peak temp. 240 ~ 245 25
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 13 mechanical drawing ? for modules with through - hole pins and the optional heatspreader, they are intended for wave soldering assembly onto system boards; please do not subject such modules through reflow temperature profile. through - hole module with heat spreader
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 14 surface - mount module through - hole module without heat spreader through hole pin specification: pins 1 - 3 ,5 - 7 1.00mm (0.040) diameter pins 4 & 8 2. 1.50 mm (0.0 59 ) diameter all pins are copper alloy with matt e tin (pb free) plating over nickel under plating
ds_ v48sc 050 13 _ 0 626 2013 e - mail : dcdc @ d elta .com.tw http://www.deltaww.com/dcdc p 15 part numbering syste m v 48 s c 050 13 n n f a form factor input voltage number of outputs product s e ries output voltage output current on/off logic pin length option code v - sixteenth brick 48 - 36 v ~ 75 v s C single c - s eries number 050 - 5.0 v 13 - 13 a n C negative k C 0.110 n - 0.145 r - 0.170 m - smd pin f - rohs 6/6 (lead free) space - rohs5/6 a C standard function h C with heatspreader model list model name input output eff @ 100% load v48sc 0 5013 nnfa 36 v~ 75 v 2.4 a 5.0 v 13 a 9 1.5 % contact : www.deltaww.com/dcdc usa: telephone: east coast: 978 - 656 - 3993 west coast: 510 - 668 - 5100 fax: (978) 656 3964 email: dc dc@delta - corp.com europe: phone: +31 - 20 - 655 - 0967 fax: +31 - 20 - 655 - 0999 email: dcdc@delta - es.com asia & the rest of world: telephone: +886 3 4526107 ext 6220~6224 fax: +886 3 4513485 email: dcdc@delta.com.tw warranty delta offers a two ( 2) year limited warranty. complete warranty information is listed on our web site or is available upon request from delta. information furnished by delta is believed to be accu rate and reliable. however, no responsibility is assumed by delta for its use, nor for any infringements of patents or other rights of third parties, which may result from its use. no license is granted by implication or otherwise under any patent or paten t rights of delta. delta reserves the right to revise these specifications
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