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s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 1 model list model number input voltage (range) output voltage outp ut current input current (typ input voltage ) load regulation maxc apacitive load efficiency (typ.) max. min. @max. load @no load @max. load vdc vdc ma ma ma( t yp.) ma( t yp.) mv uf % s24 se3r30 6 24 ( 9 ~ 36 ) 3.3v 60 00 0 960 55 10 10000 87 % s24se0500 4 5.0v 4 000 0 960 55 10 10000 88 % s24se1200 2 12v 167 0 0 960 20 1 2 1000 88 % s24se150 01 15v 133 0 0 960 20 1 5 1000 88 % s24de120 r8 1 2v 830 0 960 2 5 120 1000 88 % s24de150 r6 1 5 v 670 0 960 25 150 680 88 % input characteristics item model min. t yp. max. unit input surge voltage ( 1 00 m sec) all models 5 0 vdc input turn - on voltage threshold all models 8 8 .5 9 vdc input turn - off voltage threshold all models 7 7 .5 8 vdc input under - voltage lockout hysteresis all models 0.4 1 1.7 vdc off - conve rter input current all models 6 ma input reflected ripple current all mode ls, with 12 uh, 20 m hz 5 20 ma reverse polarity input current all models --- --- 0.3 a on/off control, logic high all models 2.4 10 vdc on/off control, logic low all models - 0. 7 0.8 vdc input filter all models internal p i filter features ? ? ? ? x0.40) x 0 x0.69 ) ? ? ? ? ? ? ? ? ? ? nd edition, 2011 - 12 - 19 r ec ognized the s24 s e /s24de series is miniature , isolated 2 0 w dc/dc converters with 1 6 00vdc isolation. the s24se/s24de family comes with a host of industry - standard features, such as over current protection, over voltage protection, over temperature protect ion and remote on/off. an optional heatsink is available for more extreme thermal requirements. all models have an untra - wide 4:1 input voltage range (9v to 36v). with operating temperature of - 40c to +85c, it is suitable for customers critical applica
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 2 output characteristics item conditions min. typ. max. unit output voltage accuracy --- 1.0 2 .0 % vo output voltage balance dual output, balanced loads --- 1.0 2 .0 % vo line regulation single output 0 .1 0.2 % vo dual output 0 .1 0. 5 % vo cross regulation dual output,asymmetrical load 25% - 100% full load 2 3 % vo total outupt voltage range over load, line and temperature --- --- 3 % vo ripple & noise 1 2 v, 1 5 v, 1 2 v, 1 5 v --- 50 --- mv p - p ripple & noise 3.3v, 5.0v 50 --- mv p - p dynamic load response 50% - 75% full load, 0.1a/us 3 % vo output over current protection output voltage 10% low, hiccup 110 160 %iomax short output protection long term, auto - recovery output over - volta ge protection hiccup, auto - recovery 115 150 % vo output trim range single output - 10 +10 % vo general characteristic s item conditions min. typ. max. unit i/o isolation voltage (r ated ) --- --- 1 6 00 v dc i/o isolation resistance 1 0 --- --- m i/o isolation capacitance 11 00 pf switching frequency 5 5 0 khz environmental specifications parameter conditions min. max. unit operating temperature range (w ith d erating ) ambient - 40 + 85 case temperature --- +105 storage temperature ra nge - 50 +125 humidity (non condensi n g) --- 95 % rel . h cooling free - air convection power derating curve s (n o heat sink and with heat sink) notes 1 specifications typical at ta=+25 , resistive load, nominal input voltage and rated output curr ent unless otherwise noted. 2 ripple & noise m easurement bandwidth is 0 - 20mhz , with 10f, tantalum capacitor and 1f ceramic capacitor . ?? 3 all dc/dc converters should be externally fused at the front end for protection. 4 specifications are subject to change without notice. 0% 10% 20 % 30 % 40% 50% 60% 70% 80% 90% 100% 110% - 40 - 30 - 20 - 10 0 10 20 30 40 50 60 70 80 90 100 110 120 output power(%) ambient temperature ( ) natural convection s24se&s24de_20w series (encapsulation) output power vs. ambient temperature at natural convection 0% 10% 20 % 30 % 40% 50% 60% 70% 80% 90% 100% 110% - 40 - 30 - 20 - 10 0 10 20 30 40 50 60 70 80 90 100 110 120 output power(%) ambient temperature ( ) natural convection s24se &s24de_20w series (encapsulation) output power vs. ambient temperature at natural convection (with heat sink)
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 3 electrical character istics curves - s24se 0500 4 , 9 - 36vin, 5.0 v/4 a efficiency vs. load current for various input voltage at 25 c. f ull load input characteristics at room temperature. turn - on transient at full lo ad current ( 10 ms/div). top trace: vout; 2 v/div; bottom trace: on/off input: 5 v/div. turn - on transient at full load current ( 10 ms/div). top trace: vout; 2 v/div; bottom trace: input voltage: 8 v/div. output voltage ripple at nominal input vol tage and max load current ( 20 mv/div , 2us/div ) load cap: 10f, tantalum capacitor and 1f ceramic capacitor. bandwidth: 20 mhz. 60 63 66 69 72 75 78 81 84 87 90 0.5 1 1.5 2 2.5 3 3.5 4 output current(a) efficiency(%) 9vin 24vin 36vin 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.5 1 1.5 2 2.5 3 3.5 4 output current(a) power dissipation(w) 9vin 24vin 36vin
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 4 electrical character istics curves - s24se 1200 2 , 9 - 36vin, 12 v/ 1.67 a efficiency vs. load current for various input vol tage at 25c. power diddipation vs. load current at 25 c. turn - on transient at full load current ( 4 ms/div). top trace: vout; 5 v/div; bottom trace: on/off input: 5 v/div. turn - on transient at full load current ( 4 ms/div). top trace: vout ; 5 v/div; bottom trace: input voltage: 8 v/div. output voltage ripple at nominal input voltage and max load current ( 10 mv/div , 2us/div ) load cap: 10f, tantalum capacitor and 1f ceramic capacitor. bandwidth: 20 mhz. 74 76 78 80 82 84 86 88 90 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 output current(a) efficiency(%) 9vin 24vin 36vin 0.7 1.1 1.5 1.9 2.3 2.7 3.1 3.5 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 output current(a) power dissipation(w) 9vin 24vin 36vin
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 5 electrical character isti cs curves - s24 d e 120 r8 , 9 - 36vin , 12v/ 0.83 a efficiency vs. load current for various input voltage at 25 c. power diss ipation vs. load current at 25 c. turn - on transient at full load current ( 4 ms/div). top two trace s : vout; 6 v/div; bo ttom trace: on/off input: 5 v/div. turn - on transient at full load current ( 4 ms/div). top t w o trace s : vout; 6 v/div; bottom trace: input voltage: 15 v/div. output voltage ripple at nominal input voltage and max load current top trace +12v, 10 m v/div ,bottom trace - 12v, 20mv/div, 2us/div. load cap: 10f, tantalum capacitor and 1f ceramic capacitor. bandwidth: 20 mhz. 73 75 77 79 81 83 85 87 89 0.2 0.3 0.4 0.5 0.6 0.7 0.8 output current(a) efficiency(%) 9vin 24vin 36vin 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.2 0.3 0.4 0.5 0.6 0.7 0.8 output current(a) power dissipation(w) 9vin 24vin 36vin
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 6 electrical character istics curves - s24de150 r6 , 9 - 36vin , 1 5 v/ 0.67 a efficiency vs. load current for various input voltag e at 25 c. power diss ipation vs. load current at 25 c. turn - on transient at full load current ( 4 ms/div). top two t race s : vout; 8 v/div; bottom trace: on/off input: 5 v/div. turn - on transient at full load current ( 4 ms/div). top two t race s : vout; 8 v/div; bottom trace: input voltage: 15 v/div. output voltage ripple at nominal input voltage and max load current top trace +15v, 10 mv/div ,bottom trace - 15v, 20mv/div, 2us/div. load cap: 10f, tantalum capacitor and 1f ceramic capacito r. bandwidth: 20 mhz. 70 72 74 76 78 80 82 84 86 88 90 0.1 0.2 0.3 0.4 0.5 0.6 0.7 output current(a) efficiency(%) 9vin 24vin 36vin 1.0 1.4 1.8 2.2 2.6 3.0 3.4 0.1 0.2 0.3 0.4 0.5 0.6 0.7 output current(a) power dissipation(w) 9vin 24vin 36vin
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 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 stability. a low ac - impedance input source is recommended. if the source inductance is m ore than a few h, we advise a 47 f electrolytic capacitor mounted close to the input of the module to improve the stability. input r eflected r ipple c urrent test set - up diagram showing measurement points for input terminal ripple current and input reflected ripple current. measured input reflected - ripple current with a simulated source inductance (ltest ) of 12 h. capacitor cs offset possible battery impedance. input terminal ripple current, ic, a t full rated output current and nominal input voltage w ith 12h source impedance and 100 f electrolytic capacitor ( 75 ma/div, 2 us /div ) . input reflected ripple current, is, through a 12h source inductor at nominal input vo ltage and rated load c urrent ( 5 ma/div, 2us /div ) output r ipple n oise output voltage ripple test setup. load capacitance: 1f ceramic capacitor and 10f tantalum capacitor. bandwidth: 20 mhz. scope measurements should be made using a bnc cable (length shorter than 20 inche s). position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module. vin + vin - is ic 100uf, esr=0.2 ohm @ 25 o c 100khz cs: 220uf + + vin + vin - is ic 100uf, esr=0.2 ohm @ 25 o c 100khz cs: 220uf + + is ic 100uf, esr=0.2 ohm @ 25 o c 100khz cs: 220uf + + + +
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 8 design consideration s layout and emi 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 layout issues, please contact deltas techn ical support team. an external input filter module is available for easier emc compliance design. below is the reference design for an input filter to pass en55022 (vde0878) class a(both q. peak and average) . l1=1 uh c1=47 uf/50v , electrolytic capacitor test result: at t = +25 ? c , typical input voltage and full load . green is quasi peak mode; blue is average mode. recommended pcb layout it is suggested to use multiple layers pcb and large size copper on system board which connect to pins of module, that can achieve better thermal performance. features description s over - current protection the modules include an internal 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 (hiccup mode). the modules will try to restart after shutdown. if the overload condition still exists, the module will shut down again. this rest art 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 - voltag e set point, the modules will shut down, and then restart after a hiccup - time (hiccup mode). if latch mode is needed, please contact with delta. over - temperature protection the over - temperature protection consists of circuitry that provides protection f rom thermal damage. if the temperature exceeds the over - temperature threshold the module will 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 logic 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. 1 mhz 10 mhz 150 khz 30 mhz 10.0 20.0 30.0 40.0 50.0 60.0 70.0 0.0 80.0 dbv limits 55022mav 55022mqp transducer 8130 traces pk+ av
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 9 for 12v signle output (kohm) : f or 15v single output (kohm) : for example: when need trim up to 3.4v, then the external resistor should be 100kohm betwe en trim pin and vout - pin. w hen need trim down to 3.1v, then the external resistor should be 40kohm between trim pin and vout+ pin. thermal consideratio ns heat can be removed by increasing airflow over the module. to enhance system reliability , the powe r mod ules case temperature should always be operated below 105 . if the case temper ature exceeds the maximum operating temperature, reliability of the unit may be affected. remote on/off implementation output voltage adjustment(trim) only single output modules has output adjust function. to increase the output voltag e set point, connect an external resistor between the trim pin and the vout( - ). to de crease the output voltage set point, connect an external resistor between the trim pin and the vout(+). the maximumu adjust range is 10%, t he trim pin should be left o pen if this feature is not used. for 3.3v single output(kohm): for 5v single output(kohm): air flow module air velocity and ambient temperature test point. 50.8mm (2.0") 15.0mm (0.6")
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 10 mechanical drawing mechanical dimensions pin connections pin single output function dual output function 1 vi n + vin + 2 vin - vin - 3 o n/off o n/off 4 vout - vout - 5 trim common 6 vout + vout + physical outline c ase size: 25.4*25.4*9.5(1.0 *1.0 *0.38 ) c ase material : al alloy, anodize black baseplate material: non - coductive fr - 4 pin materia l: brass; finish: matte tin plating and nickel under plating pin length: refer part numbering system weight: 1 7.5 grams ? all dimensions in mm (inches) ? tolerance: x.x0. 5 (x.xx0.0 2 ) x.xx0. 25 ( x.xxx0.0 10 ) ? pins diameter : 0. 10 (0 .00 4 ) application notice: for modules with through - hole pins, they are intended for wave soldering assembly onto system boards; please do not subject such modules through reflow temperature profile. r ecommened layout refer below
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 11 mechanical drawing with heat sink(optional) mechanical dimensions physical outline 1 heat sink m aterial: al - 6063 f inish: anodize black w eight: 4grams 2 clamp m aterial: spring s teel f inish: nickel plating 3 t hermal pad m aterial: sil - pad t hermal conductivity: 1.6w/m - k 4 m odel weight: 2 2 . 5 grams ? all dimensions in mm (inches) ? tolerance: x.x0. 5 (x.xx0.0 2 ) x.xx0. 25 ( x.xxx0.0 10 ) n ote: 1. add heat sink to help heat dissipation and increase reliability of convert oprating at high ambient temperature 2. please refer derating curve while upgrate the operating temperature of converter 3. heat sink will be mounted for volume orders, separated heat sink only be supplied for prototype 4. for model with heat sink option, the recommended layout only need note the length more larger than without heat sink
s 24s e /s24de series 2 0 w single/dual o utput dc/dc converter ds_ s24se/s24d e 2 0w _ 10172013 e - mail : dcdc @ d elta.com.tw http:// www.deltaww.com/dcdc p 12 part numbering system s 24 s e 050 0 4 n d f a form factor input voltage number of output product series o utput voltage output current on/off logic pin length option code s 24 C 9 ~ 36 v s - single d - dual e - series no. 050 C 5.0v 0 4 - 4 a n - n egative d - 0. 24 f - rohs 6/6 (lead free) a C standard. (with metal case ) p - positive t - 0. 22 r - 0. 17 h C with heat sink 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 three ( 3 ) year s 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 these specifications at any time, without notice.

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