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datasheet ds_s36se12002prfz_ 10252013 features ? high efficiency: 87 % @ 12 v/ 2 a ? size: 27.9 x 24.4x8. 7 mm ( 1. 1 0 x 0.96 x 0. 3 4 ) ? industry standard 1x 1 pinout ? fixed frequency operation ? 36~75v i nput ? input uvlo ? output ocp , ovp and otp ? monotonic startup into normal and pre - bias loads ? output voltage trim 10% ? 2250v isolation and b asic insulation ? no minimum load required ? smt and through - hole versions ? iso 900 1 , tl 9000, iso 14001, qs9000, ohsas18001 certified manufacturing facility ? ul/cul 60950 - 1 (us & canada ) recognized applications ? optical transport ? data networking ? communications, including wireless and traditional telecom ? serve rs options ? positive, negative, or no on/off ? otp and output ovp , ocp mode, auto - re start (default) or latch - up ? surface mounted pin delphi s 36 se, 25 w 1x1 brick series dc/dc power modules: 36~75v in, 12 v/2a out the delphi s 36 se12002, 1x1 sized, 36~7 5vin, single output, isolated dc/dc converters are the latest offering from a world leader in power systems technology and manufacturing delta electronics, inc. this product is available in either a surface mount or through - hole package and provides up t o 25 watts of power or 12v/2a in a standard 1x1 form factor (1.1 0 x0.96). the pinout is compatible with the popular industry standard 1x 2 sized products. with creative design technology and optimization of component placement, these converters possess out standing electrical and thermal performance, as well as extremely high reliability under highly stressful operating conditions. the s36se 12v module provides full output power without any airflow at over 80 ? c ambient temperature while keeping the component junction temperatures under most derating guidelines. typical efficiency of 12v/2a module is better than 8 7 % and all modules are fully protected from abnormal input/output voltage, current, and temperature conditions.
ds_s36se12002prfz_ 10252013 2 technical specificat ions t a =25c, airflow rate= 300 lfm, v in =48vdc, n ominal vout unless otherwise noted; full operating temperature range is - 40c to + 85 c ambient temperature with appropriate power derating. parameter notes and conditions s 36 se 12002prfz min. typ. max. units absolute maximum ratings input voltage continuous 80 vdc transient(100ms) 100ms 100 vdc operating temperature - 40 85 c storage temperature - 55 125 c input/output isolation voltage 2250 vdc input characteristics operating input voltage 36 48 75 vdc input under - v oltage lockout turn - on voltage threshold io=100% load 32 33.5 35 vdc turn - off voltage threshold io=100% load 30 31.5 33 vdc lockout hysteresis voltage io=100% load 1 2 3 vdc maximum input current vin=36v, 100% load 0.8 a no - load input current v in=48v,io=0a 15 ma off converter input current vin=48v 5 ma inrush current (i 2 t) 0.01 a 2 s input reflected - ripple current p - p thru 12h inductor, 5hz to 20mhz 8 ma input voltage ripple rejection 120 hz 60 db output characteristics outp ut voltage set point vin=48v, io=io.max, tc=25c 11.82 12.00 12.18 vdc output voltage regulation over load io=io, min to io, max 3 10 mv over line vin= 36 v to 75v 3 10 mv over temperature tc= - 40c to 100c 1 20 mv total output voltage ran ge over sample load, line and temperature 11.64 12.00 12.36 v output voltage ripple and noise 5hz to 20mhz bandwidth peak - to - peak full load, 1f ceramic, 10f tantalum 80 150 mv rms full load, 1f ceramic, 10f tantalum 20 35 mv operating output current range vin=36v to 75v 0 2 a output dc current - limit inception vin=48v, output voltage 10% low 2.2 2.8 a dynamic characteristics output voltage current transient 48v, 10f tan & 1f ceramic load cap, 0.1a/s positive step change in ou tput current 50% io.max to 75% io.max 200 400 mv negative step change in output current 75% io.max to 50% io.max 200 400 mv settling time (within 1% vout nominal) 6 00 u s turn - on transient start - up time, from on/off control to 95%vo vin=48v, io=100% load 20 40 ms start - up time, from input to 95%vo vin=48v, io=100% load 20 40 ms maximum output capacitance full load; 5% overshoot of vout at startup 20 00 f efficiency 100% load vin=48v 87 % 60% load vin=48v 8 7 % isolation characteristics input to output 2250 vdc isolation resistance 10 m isolation capacitance 1.0 kpf feature characteristics switching frequency 450 khz on/off control, negative remote on/off logic logic low (modul e on) von/off - 0.7 0.8 v logic high (module off) von/off 2 18 v on/off control, positive remote on/off logic logic low (module off) von/off - 0.7 0.8 v logic high (module on) von/off 2 18 v on/off current (for both remote on/off logic) ion /off at von/off=0.0v 0.25 ma leakage current (for both remote on/off logic) logic high, von/off=15v 30 ua output voltage trim range across trim pin & +vo or C vo, pout Q max rated 10.8 13.2 v output over - voltage protection over full temp range; 13.8 17.0 v general specifications mtbf vin48v; i o=80% of io, max; t a = 25 c , 300lfm 7.96 m hours weight 9 grams over - temperature shutdown refer to figure 20 for me asuring point 133 c
ds_s36se12002prfz_ 10252013 3 electrical character istics curves figure 1 : efficiency vs. load current for minimum, nominal, and maximum input voltage at 25c . figure 2 : power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25c . figure 3 : typical full load input characteristics at room temperature . figure 4 : (for negative remote on/off logic) turn - on transient at full rated load current (5 ms/div). vin=48v. top trace: vout , 5 v/div; bottom trace: on/off input, 5 v/div . 0.3 0.4 0.5 0.6 0.7 0.8 0.9 25 30 35 40 45 50 55 60 65 70 75 input voltage (v) input current (a) 60 63 66 69 72 75 78 81 84 87 90 0.3 0.5 0.8 1.0 1.3 1.5 1.8 2.0 output current(a) efficiency (%) 36vin 48vin 75vin 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.3 0.5 0.8 1.0 1.3 1.5 1.8 2.0 output current(a) power dissipation(w) 48vin 75vin 36vin
ds_s36se12002prfz_ 10252013 4 f ig ure 5 : (for negative remote on/off logic) turn - on transient at zero load current ( 5 ms/div). vin=48v. top trace: vout , 5 v/div , bottom trace: on/off input , 5v/div . figure 6 : (for positive remote on/off logic) turn - on transient at full rated load current ( 5 ms/div). vin=48v. top trace: vout , 5 v/div; bottom trace: on/off input , 5v/div . e lectrical characteri stics curves (con.) figure 7: (for positive remote on/off logic) turn - on transient at zero load current ( 5 ms/div). vin=48v. top trace: vout , 5 v/div; bottom trace: on/off input , 5v/div . figure 8 : output voltage response to step - change in load current (75% - 50% of io, max; di/dt = 0.1a/s). load cap: 10f tantalum capacitor and 1f ceramic capacitor. top trace: vout ( 100 mv/div, 1 00 us /div ), bottom trace: iout ( 0.5 a/div). scope measurement should be made using a bnc cable (length shorter than 20 inches). position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module .
ds_s36se12002prfz_ 10252013 5 figure 9 : output voltage re sponse to step - change in load current ( 50 % - 75 % of io, max; di/dt = 0.1a/s). load cap: 10f tantalum capacitor and 1f ceramic capacitor. top trace: vout ( 100 mv/div, 1 00 us /div ), bottom trace: iout (0.5a/div). scope measurement should be made using a bnc ca ble (length shorter than 20 inches). position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module . figure 1 0 : test set - up diagram showing measurement points for input terminal ripple current and input reflected ripple current. note: mea sured input reflected - ripple current with a simulated source inductance (l test ) of 12 h. capacitor cs offset possible battery impedance. measure current as shown below. electrical character istics curves figure 11 : input terminal ripple current, i c , at full rated output current and nominal input voltage with 12h source impedance and 33f electrolytic capacitor ( 20 m a /div , 1us /div ) figure 1 2: input reflected ripple current, i s , through a 12h source inductor at nominal input voltage and rated load current (20 ma/div , 2us /div )
ds_s36se12002prfz_ 10252013 6 figure 1 3: output voltage noise and ripple measurement test setup figure 14 : output voltage ripple at nominal input voltage and rated load current (io= 2 a) (5 0 mv/div , 5us /div ) load capacitance: 1f ceramic capacitor an d 10f tantalum capacitor. bandwidth: 20 mhz. scope measurements should be made using a bnc cable (length shorter than 20 inches). position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module figure 15 : output voltage vs. load curr ent showing typical current limit curves and converter shutdown points 0 1 2 3 4 5 6 7 8 9 10 11 12 13 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 load current (a) output voltage(v) 48vi n
ds_s36se12002prfz_ 10252013 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 stability. a low ac - impedance input source is recommended. if the source inductance is more than a few h, we advise adding a 10 to 100 f electrolytic capacitor (esr < 0.7 at 100 khz) mo unted close to the input of the module to improve the stability. layout and emc considerations 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 p w b la yout issues, please contact deltas technical support team. an external input filter module is available for easier emc compliance design. application notes to assist designers in addressing these issues are pending to release. 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 system in which the power module is to be used must meet safety agency requirements. basic insulation 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 the modules 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 conducted 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 consideration should be given to the end - use installation, as the spacing between the module and mounting surface have not been evaluated. the power mod ule 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 require a normal - blow fuse with 5 a m aximum rating to be installed in the ungrounded lead. a lower rated fuse can be used based on the maximum inrush transient energy and maximum input current. soldering and cleaning considerations post solder cleaning is usually the final board assembly pr ocess 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 importa nt for un - encapsulated and/or open frame type power modules. for assistance on appropriate soldering and cleaning procedures, please contact deltas technical support team.
ds_s36se12002prfz_ 10252013 8 features description s over - current protection the modules include an internal output over - current protection circuit, whic h will endure current limiting for an unlimited duration during output overload. if the output current exceeds the ocp set point, the modules will automatically shut down, and enter hiccup mode or latch mode, which is optional. for hiccup mode, the module will try to restart after shutdown. if the overload condition still exists, the module will shut down again. this restart trial will continue until the overload condition is corrected. for latch mode, the module will latch off once it shutdown. the latch is reset by either cycling the input power or by toggling the on/off signal for one second. over - voltage protection the modules include an internal output over - voltage protection circuit, which monitors the voltage on the output terminals. if this volta ge exceeds the over - voltage set point, the module will shut down, and enter in hiccup mode or latch mode, which is optional. for hiccup mode, the module will try to restart after shutdown. if the overload condition still exists, the module will shut down again. this restart trial will continue until the over - voltage condition is corrected. for latch mode, the module will latch off once it shutdown. the latch is reset by either cycling the input power or by toggling the on/off signal for one second. 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 will shut down, and enter in hiccup mode or latch mode, which i s optional. for auto - restart mode, the module will monitor temperature after shut down. once the temperature is within the specification, the module will be auto - restarted. for latch mode, the module will latch off once it shutdown. the latch is reset b y either cycling the input power or by toggling the on/off signal for one second. 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 logic high. positive logic turns the modules on during a logic high and off during a logic low. remote on/off can be c ontrolled by an external switch between the on/off terminal and the v i ( - ) terminal. the switch can be an open collector or open drain. for negative logic i f the remote on/off feature is not used, please short the on/off pin to vi( - ). for pos i tive logic i f the remote on/off feature is not used, please leave the on/off pin floating . figure 16 : remote on/off implementation vi(+) vi( - ) on/off vo(+) trim vo( - ) r load vi(+) vi( - ) on/off vo(+) trim vo( - ) r load
ds_s36se12002prfz_ 10252013 9 features description s (con.) output voltage adjustment to increase or decrease the output voltage set point, the modules may be connected with an external resistor b etween the trim pin and either the vo (+) or vo ( - ). the trim pin should be left open if this feature is not used. figure 17 : circuit configuration for trim - down (decrease output voltage) if the external resistor is connected between the trim and vo(+) pins, the output voltage set point decreases (fig. 1 7). the external resistor value required to obtain an output voltage change from 12 v to the desired vo_adj is defined as: ex. when trim - down - 1 0% vo_adj= 12 v(1 - 10%)= 10.8 v ohm figure 18 : circuit configuration for trim - up (increase output voltage) if the external resistor is connected between the trim and vo( - ) the output voltage set point increases (fig. 18 ). the external resistor v alue require d to obtain an output voltage change from 12 v to the desired vo_adj is defined as: ex. when trim - up +10% vo_adj= 12 v(1+10%)= 13.2 v ohm when using trim function, the output voltage of the module is usu ally 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 or below the maximum rated power. r load vo (+) trim vo ( - ) r trim - down vi (+) vi ( - ) on/off r load vo (+) trim vo ( - ) r trim - down vi (+) vi ( - ) on/off vo (+) trim vo ( - ) r trim - down vi (+) vi ( - ) on/off rtrim_down vo_adj 2.5 ? ( ) 10000 ? 12 vo_adj ? 5110 ? rtrim_down 10.8 2.5 ? ( ) 10000 ? 12 10.8 ? 5110 ? rtri m_down 6.406 10 4 ? ? vo (+) trim vo ( - ) r load r trim - up vi (+) vi ( - ) on/off vo (+) trim vo ( - ) r load r trim - up vi (+) vi ( - ) on/off rtrim_up 2.5 10000 ? vo_adj 12 ? 5110 ? rtrim_up 2.5 10000 ? 13.2 12 ? 5110 ? rtrim_up 1.572 10 4 ? ?
ds_s36se12002prfz_ 10252013 10 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. t hermal curves figure 20 : temperature measurement location the allowed maximum hot spot temperature is defined at 12 3 . figure 21: output c urrent vs. a mbient t emperature and air velocity@ v in = 48 v (either orientation ) thermal consideratio ns thermal management is an important part of the system design. to ensure proper, reliable operation, sufficient cooli ng 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 thermal 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 equipment 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 within the wind tunnel. the space between the neighboring pw b and the top of the power module is constantly kept at 6.35mm (0.25). figure 19: wind tunnel test setup s36se12002(standard) output current vs. ambient temperature and air velocity @vin = 48v (either orientation) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 25 30 35 40 45 50 55 60 65 70 75 80 85 ambient temperature ( ) output current(a) natural convection note: wind tunnel test setup figure dimensions are in millimeters and (inches) 12.7 (0.5) module air flow 50.8 (2.0) facing pwb pwb air velocity and ambient temperature measured below the module
ds_s36se12002prfz_ 10252013 11 pick and place locat ion surface - mount tape & reel recommended pad layo ut (smd)
ds_s36se12002prfz_ 10252013 12 lea ded (sn/ pb ) process recommend temperature profile note: the temperature refers to the pin of s36se, measured on the pin +vout joint. lead free (sac) proc ess recommend temper ature profile note: the temperature refers to the pin of s36se, 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_s36se12002prfz_ 10252013 13 mechanical drawing s urface - mount module t hrough - hole module pin no. name function 1 2 3 4 5 6 +vin - vin on/off - vout trim +vout posit ive input voltage negative input voltage remote on/off negative output voltage output voltage trim positive output voltage pin specification: pins 1~6 1.0 0 mm (0.040) diameter all pins are copper with tin plating over nickel under plating .
ds_s36se12002prfz_ 10252013 14 part num bering system s 36 s e 120 02 p r f z product type input voltage number of outputs product series output voltage output current on/off logic pin length/type option code s - small power 36 - 36 ~75vi n s - single 1x1 - 17w series 120 - 12 v 0 2 - 2 a p - positive n - nega tive e - without pin3 r - 0.170 n - 0.1 45 k - 0.1 1 0 m - smd f - rohs 6/6 (lead free) a - without pin5 b~z - with pin5 model list model name input output eff @ 100% load s36se12002prfz 36 v~75v 0.8 a 12v 2 a 8 7 .0 % c onta ct : www.deltaww.com/dcdc usa: telephone: east coast: 978 - 656 - 3993 west coast: 510 - 668 - 5100 fax: (978) 656 3964 email: dcdc@delta - corp.com europe: p hone: +31 - 20 - 655 - 09 67 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 warran ty 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 accurate 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 patent rights of delta. delta reserves the right to revise th ese specifications at any time, without notice .

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