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datasheet ipm24s0c0s/r03_01092009 features ? high efficiency: 95.0% @ 20vin, 15.0v/3a ? small size and low profile: 17.8x15.0x7.8mm (0.70?x0.59?x0.31?) ? output voltage adjustment: 8.0v~15.0v ? monotonic startup into normal and pre-biased loads ? input uvlo, output ocp ? remote on/off ? output short circuit protection ? fixed frequency operation ? copper pad to provide excellent thermal performance ? iso 9001, tl 9000, iso 14001, qs9000, ohsas18001 certified manufacturing facility ? ul/cul 60950 (us & canada) recognized, and tuv (en60950) certified ? ce mark meets 73/23/eec and 93/68/eec directives applications ? telecom/datacom ? wireless networks ? optical network equipment ? server and data storage ? industrial/test equipment options ? smd or sip package delphi series ipm24s0c0, non-isolated, integrated point-of-load power modules: 20v~36v input, 8.0~15.0v and 3a output the delphi series ipm24s0c0 non-isolated, fully integrated point-of-load (pol) power modules, are the latest offerings from a world leader in power systems technology and manufacturing ? delta electronics, inc. this product family provides up to 3a of output current or 45w of output power in an industry standard, compact, ic-like, molded package. it is highly integrated and does not require external components to provide the point-of-load function. a copper pad on the back of the module; in close contact with the internal heat dissipati on components; provides excellent thermal performance. the assembly process of the modules is fully automated with no manual assembly involved. these converters possess outstanding electrical and thermal performance, as well as extremely high reliability under highly stressful operating conditions. ipm24s0c0 operates from a 20v~ 36v source and provides a programmable output voltage from 8.0v to 15.0v. the ipm product family is available in either a smd or sip package. ipm24s family is also available for output 1.2v~2.5v or 3.3v~6.5v. please refer to ipm24s0a0 and ipm24s0b0 datasheets for details.
ds_ipm24s0c0_01092009 2 technical specifications t a = 25c, airflow rate = 300 lfm, v in = 24vdc, nominal vout unless otherwise noted. parameter notes and conditions ipm24s0c0r/s03fa min. typ. max. units absolute maximum ratings input voltage (continuous) 0 40 vdc operating temperature please refer to fig. 32 for the measuring point -40 125 c storage temperature -55 125 c input characteristics operating input voltage 20 36 v input under-voltage lockout turn-on voltage threshold 19.3 v turn-off voltage threshold 18.8 v maximum input current vin=vin,min to vin,max, io=io,max a no-load input current 50 ma off converter input current 3 10 ma input reflected-ripple current p-p 0.5h inductor, 5hz to 20mhz 60 150 map-p input voltage ripple rejection 120 hz tbd db output characteristics output voltage set point vin=24v, io=io,max, ta=25 7.88 8.0 8.12 vdc output voltage adjustable range 8.0 15.0 v output voltage regulation over line vin=vin,min to vin,max 0.3 % vo,set over load io=io,min to io,max 0.3 % vo,set over temperature ta=ta,min to ta,max 0.01 0.025 %vo,set/ total output voltage range over sample load, line and temperature -3.0 +3.0 % vo,set output voltage ripple and noise 5hz to 20mhz bandwidth peak-to-peak full load, 1f ceramic, 100f os-conx2 50 100 mvp-p rms full load, 1f ceramic, 100f os-conpx2 25 50 mv output current range vo>8.0vdc 0 3 a output voltage over-shoot at start-up vin=20v to 36v, io=0a to 3a, ta=25 0 1 % vo,set output dc current-limit inception 130 % io dynamic characteristics dynamic load response 100fx2 os-con & 1f ceramic load cap, 0.5a/s positive step change in output current 50% io, max to 100% io, max 75 200 mvpk negative step change in output current 100% io, max to 50% io, max 75 200 mvpk setting time to 10% of peak devitation 200 300 s turn-on transient io=io.max start-up time, from on/off control 17 50 ms start-up time, from input 17 50 ms output voltage rise time time for vo to rise from 10% to 90% of vo,set, 5 9 17 ms maximum output startup capacitive load full load; esr R 15m ? 200 f full load; esr R 12m ? 1200 f efficiency vo=8.0v vin=24v, io=io,max, ta=25 89.0 91.0 % vo=15.0v vin=24v, io=io,max, ta=25 91.5 93.5. % feature characteristics switching frequency 300 khz on/off control, (logic high-module on) logic high module on 2.4 vin,max v logic low module off -0.2 0.8 v on/off current ion/off at von/off=0 0.25 1 ma leakage current logic high, von/off=5v 50 a general specifications calculated mtbf io=80% io,max, ta=25 13.04 m hours weight 6 grams
ds_ipm24s0c0_01092009 3 electrical characteristics curves figure 1: converter efficiency vs. output current (8.0v output voltage) figure 2: converter efficiency vs. output current (15.0v output voltage) figure 3: output ripple & noise at 36vin, 8.0v/3a out figure 4: output ripple & noise at 36vin, 15.0v/3a out figure 5: power on waveform at 24vin, 8.0v/3a out with application of vin figure 6: power on waveform at 24vin, 8.0v/3a out with application of vin
ds_ipm24s0c0_01092009 4 electrical characteristics curves figure 7: power off waveform at 24vin, 8.0v/3a out with application of vin figure 8: power off waveform 24vin,15.0v/3a out with application of vin figure 9: remote tu rn on delay time at 24vin, 8.0v/3a out figure 10: remote turn on delay time at 24vin, 8.0v/3a out figure 11: turn on delay at 24vin, 8.0v/3a out with application of vin figure 12: turn on delay at 24vin, 15.0v/3a out with application of vin
ds_ipm24s0c0_01092009 5 electrical characteristics curves figure 13: typical transient response to step load change at 0.5a/ s from 100% to 50% of io, max at 24vin, 15.0v out (measurement with a 1uf ceramic figure 14: typical transient response to step load change at 0.5a/ s from 50% to 100% of io, max at36vin, 6.5v out (measurement with a 1uf ceramic)
ds_ipm24s0c0_01092009 6 test configurations v i (+) v i (-) battery 2 100uf electrolytic l to oscilloscope ceramic 3.3uf note: input reflected-ripple current is measured with a simulated source inductance. current is measured at the input of the module. figure 15: input reflected-ripple current test setup vo gnd copper strip 100ufx2 os-con 1uf ceramic scope resistive load note: use a 100 fx2 os-son and 1 f capacitor. scope measurement should be made using a bnc connector. figure 16: peak-peak output noise and startup transient measurement test setup supply i i v i vo gnd io load contact and distribution losses contact resistance figure 17: output voltage and efficiency measurement test setup note: all measurements are taken at the module terminals. when the module is not soldered (via socket), place kelvin connections at module terminals to avoid measurement errors due to contact resistance. % 100 ) ( = ii vi io vo design considerations input source impedance to maintain low-noise and ripple at the input voltage, it is critical to use low esr capacitors at the input to the module. figure 26 shows the input ripple voltage (mvp-p) for various output models using 2x100uf low esr electrolytic capacito rs (rubycon p/n:50yxg100, 100uf/50v or equivalent) and 1x3.3.0 uf very low esr ceramic capacitors (tdk p/n: c4532jb1h335m, 3.3uf/50v or equivalent). the input capacitance should be able to handle an ac ripple current of at least: arms vin vout vin vout iout irms ? ? ? ? ? ? ? = 1 figure 18: input ripple voltage for various output models, io = 3a (cin =2x100uf electrolytic capacitors 1x3.3uf ceramic capacitors at the input) the power module should be connected to a low ac-impedance input source. highly inductive source impedances can affect the stability of the module. an input capacitance must be placed close to the modules input pins to filter ripple current and ensure module stability in the presence of inductive traces that supply the input voltage to the module.
ds_ipm24s0c0_01092009 7 design considerations remote on/off the ipm series power modules have an on/off control pin for output voltage remote on/off operation. the on/off pin is an open collector/drain logic input signal that is referenced to ground. when on/off control pin is not used, leave the pin unconnected. the remote on/off pin is internally connected to +5vdc through an internal pull-up resistor. figure 27 shows the circuit configuration for applying the remote on/off pin. the module will execute a soft start on when the transistor q1 is in the off state. the typical rise for this remote on/off pin at the output voltage of 2.5v and 5.0v are shown in figure 17 and 18. vo on/off vin gnd ipm q1 rl figure 19: remote on/off implementation features descriptions over-current protection to provide protection in an output over load fault condition, the unit is equipped with internal over-current protection. when the over-current protection is triggered, the unit enters hiccup mode. the units operate normally once the fault condition is removed. output voltage programming the output voltage shall be externally adjustable by use of a trim pin. the module output shall be adjusted by either a voltage source referenced to ground or an external resistor be connect ed between trim pin and vo or ground. to trim-down using an external resistor, connect a resistor between the trim and vo pin of the module. to trim up using an external resistor, connect the resistor between the trim and ground pins of the module. the value of resistor is defined below. the module outputs shall not be adversely affected (regulation and operation) when the trim pin is left open. ipm can also be programmed by applying a voltage between the trim and gnd pins (figure 20). the following equation can be used to determine the value of vtrim needed for a desired output voltage vadj: trim up (vout-0.7)*1.91 rtrim = vadj-vout (k ) trim down (vadj-0.7)*20 rtrim = vout-vadj (k ) rtrim is the external resistor in k ? vadj is the desired output voltage
ds_ipm24s0c0_01092009 8 features descriptions (con.) figure 20: trim up circuit configuration for programming output voltage using an external resistor rtrim load vout trim gnd figure 21: trim down circuit configuration for programming output voltage using an external resistor figure 22: circuit configuration for programming output voltage using external voltage source table 1 provides rtrim values required for some common output voltages. by using a 0. 5% tolerance resistor, set point tolerance of 2% can be achieved as specified in the electrical specification. table 1 rtrim is the external resistor in k ? ; vout is the desired output voltage rtrim setting ( ? ) output measurement r.trim_up r .trim_down 0a vo 8.0 nc nc v vadj 15.0 2k nc v vadj 8.0*(1-10%) nc 215k v the amount of power delivered by the module is 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 must not exceed the maximum rated power ( vo.set x io.max p max ) . voltage margining output voltage margining can be implemented in the ipm modules by connecting a resistor, r margin-up , from the trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, r margin-down , from the trim pin to the output pin for marg ining-down. figure 32 shows the circuit configuration for output voltage margining. if unused, leave the trim pin unconnected. vo on/off vin gnd trim ipm q2 q1 rmargin-up rmargin-down rtrim figure 23: circuit configuration for output voltage margining
ds_ipm24s0c0_01092009 9 thermal considerations 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 modul e. 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 delta?s dc/dc power modules are characterized in heated vertical wind tunnels t hat simulate the thermal environments encountered in most electronics equipment. this type of equipment commonly uses vertically mounted circuit card s 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 height of this fan duct is constantly kept at 25.4mm (1??). 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. module a ir flow 12.7 (0.5?) 50.8 (2.0?) facing pwb pwb air velocity and ambient temperature measured below the module 25.4 (1.0?) note: figure dimensions are in millimeters and (inches) figure 24: wind tunnel test setup thermal curves figure 25: temperature measurement location * the allowed maximum hot spot temperature is defined at 125 . ipm24s (standard) output current vs. ambient temperature and air velocity @ vin=24v, vout = 8v (either orientation) 0 1 2 3 50 55 60 65 70 75 80 85 ambient temperature ( ) output current(a) natural convection 100lfm 200lfm 300lfm figure 26: output current vs. ambient temperature and air velocity @ vin=24v, vout=8v(either orientation) ipm24s (standard) output current vs. ambient temperature and air velocity @ vin=24v, vout = 15v (either orientation) 0 1 2 3 50 55 60 65 70 75 80 85 ambient temperature ( ) output current(a) natural convection 100lfm 200lfm 300lfm 400lfm figure 27: output current vs. ambient temperature and air velocity @ vin=24v, vo=15v(either orientation)
ds_ipm24s0c0_01092009 10 pick and place location all dimensions are in millimeters (inches) surface- mount tape & reel all dimensions are in millimeters (inches) lead free process reco mmend temp. profile time 60 ~ 150 sec. above 217 0 c 20 ~ 40sec. ramp up max. 3.0 0 c/sec preheat time 60 ~ 180 sec. ramp down max. 6.0 0 c/sec temp. time 25 0 c 150 0 c 200 0 c 217 0 c peak temp. 240 ~ 245 0 c time 60 ~ 150 sec. above 217 0 c 20 ~ 40sec. ramp up max. 3.0 0 c/sec preheat time 60 ~ 180 sec. ramp down max. 6.0 0 c/sec temp. time 25 0 c 150 0 c 200 0 c 217 0 c peak temp. 240 ~ 245 0 c note : all temperature refers to topside of the package, meas ured on the package body surface.
ds_ipm24s0c0_01092009 11 recommend pwb pad layout recommend pwb hole layout 12345 12345 76 12345 mechanical drawing smd package sip package note: the copper pad is recommended to connect to the ground. all dimension are in millimeters (inches) standard dimension tolerance is 0.10(0.004?)
ds_ipm24s0c0_01092009 12 part numbering system ipm 24 s 0c0 s 03 f a product family input voltage number of outputs output voltage package output current option code integrated pol module 24 -20v ~ 36v s - single 0c0 - programmable output 8.0v~15.0v r - sip s - smd 03 - 3a f- rohs 6/6 (lead free) a - standard function model list model name input voltage output voltage ou tput current efficiency (full load@12vin) ipm24s0a0s/r03fa 8v ~ 36v 1.2v ~ 2.5v 3a 85% ipm24s0b0s/r03fa 11v ~ 36v 3.3v ~ 6.5v 3a 91% model name input voltage output voltage ou tput current efficiency (full load@20vin) ipm24s0c0s/r03fa 20v ~ 36v 8.0v~15.0v 3a 95% contact: www.delta.com.tw/dcdc usa: telephone: east coast: (888) 335 8201 west coast: (888) 335 8208 fax: (978) 656 3964 email: dcdc@delta-corp.com europe: telephone: +41 31 998 53 11 fax: +41 31 998 53 53 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 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 pat ent rights of delta. delta reserves the right to revise these specifications at any time, without notice .

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