delphi dihw2000 series dc/dc power modules: 24, 48, 110vin, 3w dip 4200vdc isolation, single/dual output the delphi dihw2000, 24, 48, 110v input, single or dual output, dip form factor, isolated dc/dc converter is the latest offering from a world leader in power systems technology and manufacturing D delta electronics, inc. the dihw 2000 series operate from 24v, 48v, or 110v (4:1) and provides 5v or 12v of single output and 12v or 15v of dual output in an indust rial standard, plastic case encapsulated dip package. this series provides up to 3w of output power with 4200vdc isolation and a typical full-load efficiency up to 84%. with creative design technol ogy and optimization of component placement, these converters possess outstanding electrical and thermal performance, as well as extremely high reliability under highly stressful operating conditions. applications ? industrial ? transportation ? process/ automation datasheet ds_dihw2000_04072009 features ? efficiency up to 83% ? industry standard form factor and pinout ? size: 31.8 x20.3 x10.7mm (1.25? x0.80? x0.42?) ? input: 24v, 48v, 110v (4:1) ? output: 5, 12, 12, 15v ? low ripple and noise ? short circuit protection ? 4200 vdc isolation ? meets ul60950-1 / en55022 class b ? iso 9001 and iso14001 certified manufacturing facility options
2 technical specifications t a = 25c, airflow rate = 0 lfm, nominal vin, nominal vout, resistive load unless otherwise noted. parameter notes and conditions dihw2000 (standard) min. typ. max. units absolute maximum ratings input voltage transient 24vdc input model, 1000ms -0.7 50 vdc transient 48vdc input model, 1000ms -0.7 100 vdc transient 110vdc input model, 1000ms -0.7 180 vdc internal power dissipation 2500 mw operating temperature ambient -40 85 c case -40 100 c storage temperature -40 125 c humidity 95 % lead temperature in assembly 1.5mm from case for 10 seconds 260 c input/output isolation voltage 5600 vdc input characteristics operating input voltage 24v model 9 24 40 vdc 48v model 18 48 80 110v model 36 110 160 vdc turn-on voltage threshold 24v model 8 8.5 9 vdc 48v model 13 15 17 vdc 110v model 26 30 34 vdc turn-off voltage threshold 24v model --- --- 8.5 vdc 48v model --- --- 16 vdc 110v model --- --- 32 vdc maximum input current please see model list table on page 6 no-load input current 24v model 20 ma 48v model 10 ma 110v model 5 ma input reflected ripple current 24v model 15 % 48v model 8 % 110v model 3 % short circuit input power all models 2 w reverse polarity input current 0.3 a output characteristics output voltage set point accuracy 0.5 1.0 % output voltage balance dual output m odels, balanced loads 0.5 2.0 % output voltage regulation over load io=25% to 100% 0.5 1.0 % over line vin = min to max 0.3 0.5 % over temperature tc=-40c to 100c 0.02 0.05 %/c output voltage ripple and noise 5hz to 20mhz bandwidth peak-to-peak 5v output, full load, 0.33f ceramic 75 100 mvp-p peak-to-peak other outputs, full load, 0.33f ceramic 100 150 mvp-p peak-to-peak, over line, load, temperature full load, 0.33f ceramic 180 mvp-p rms full load, 0.33f ceramic 15 mvrms output over current/power protection auto restart 120 % output short circuit continuous output voltage current transient step change in output current 25% step change 3 6 % settling time (within 1% vout nominal) 150 500 s maximum output capacitance 5v output 1000 f 12v output 470 f dual output models, each output 220 f efficiency 100% load please see model list table on page 6 isolation characteristics isolation voltage input to output, 60 seconds 4200 vdc isolation voltage test flash test for 1 seconds 5000 vdc leakage current 240vac, 60hz 2 a isolation resistance 500vdc 1000 m ? isolation capacitance 100khz, 1v 7 13 pf feature characteristics switching frequency 150 khz general specifications mtbf mil-hdbk-217f; ta=25c, ground benign 1 m hours weight 16.2 grams case material non-conductive black plastic flammability ul94v-0 input fuse 24v model, 1000ma slow blown type 48v model, 500ma slow blown type 110v model, 300ma slow blown type notes: 1. these power converters require a minimum output load to ma intain specified regulation (pl ease see page 7 for the suggested m inimum load). operation under no-load conditions will not dam age these modules; however, they may not meet all specifications listed above. 2. these dc/dc converters s hould be externally fused at the front end for protection.
3 electrical charact eristics curves figure 1: efficiency vs. input voltage (single output) figure 2: efficiency vs. input voltage (dual output) figure 3: efficiency vs. output load (single output) figure 4: efficiency vs. output load (dual output) figure 5: input voltage transient rating
4 test configurations +out -out +vin -vin dc / dc converter load battery + lin + cin to oscilloscope current probe input reflected-ripple current test setup input reflected-ripple current is measured with an inductor lin (4.7h) and cin (220uf, esr < 1.0 ? at 100 khz) to simulate source impedance. capacitor cin is to offset possible battery impedance. curr ent ripple is measured at the input terminals of the module and measurement bandwidth is 0-500 khz. peak-to-peak output noise measurement scope measurement should be made by using a bnc socket, measurement bandwidth is 0-20 mhz. position the load between 50 mm and 75 mm from the dc/dc converter. a cout of 0.47f ceramic capacitor is placed between the terminals shown below. +out -out +vin -vin single output dc / dc converter resistive load scope copper strip cout +out -out +vin -vin dual output dc / dc converter resistive load scope copper strip cout com. scope cout design & feature considerations the dihw2000 circuit block diagrams are shown in figures 6 and 7. pfm isolation ref.amp lc filter +vin -vin -vo +vo figure 6 : block diagram of dihw2000 single output modules. +vo pfm isolation ref.amp lc filter +vin -vin com. -vo figure 7: block diagram of dihw2000 dual output modules input source impedance the power module should be connected to a low ac- impedance input source. highly inductive source impedances can affect the stability of the power module. + +out -out +vin -vin dc / dc converter load dc power source + - cin in applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup. capacitor mounted close to the input of the power module helps ensure stability of the unit, it is recommended to use a good quality low equivalent series resistance (esr < 1.0 ? at 100 khz) capacitor of a 4.7 f for the 24v and a 2.2f for the 48v devices.
5 design & feature considerations maximum capacitive load the dihw2000 series has limitation of maximum connected capacitance at the output. the power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. the maximum capacitance can be found on page 2 of this datasheet. output ripple reduction a good quality low esr capacitor placed as close as practicable across the load will give the best ripple and noise performance. to reduce output ripple, it is recommended to use 3.3f capacitors at the output. +out -out +vin -vin load dc power source + - cout single output dc / dc converter +out -out +vin -vin load dc power source + - cout com. dual output dc / dc converter overcurrent protection to provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure current limiting for an unlimited duration. at the point of current-limit inception, the unit shifts from voltage control to current control. the unit operates normally once the output current is brought back into its specified range. 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 cleaning procedures, please contact delta?s technical support team. notes: 1. these power converters require a minimum output load to maintain specified regulation (please see page 2 for the suggested minimum load). operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed above. 2. these dc/dc converters should be externally fused at the front end for protection.
6 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 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 delta?s 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 facing pwb and pwb is constantly kept at 25.4mm (1??). figure 7: wind tunnel test setup thermal derating heat can be removed by in creasing airflow over the module. to enhance system reliability, the power module should always be operated below the maximum operating temperature. if t he temperature exceeds the maximum module temperature, reliability of the unit may be affected. thermal curves dihw2000series output current vs. ambient temperature and air velocity (either orientation) 0% 20% 40% 60% 80% 100% 120% 25 35 45 55 65 75 85 ambient temperature ( ) output power (%) natural convection figure 8: derating curve
7 model list input output full load efficiency vdc (v) max (ma) vdc (v) max (ma) min (ma) % dihw2022 160 5 600 90 78 dihw2023 151 12 250 37.5 83 DIHW2026 151 12 125 18.8 83 dihw2027 151 15 100 15 83 dihw2032 80 5 600 90 78 dihw2033 75 12 250 37.5 83 dihw2036 75 12 125 18.8 83 dihw2037 75 15 100 15 83 dihw2042 35 5 600 90 78 dihw2043 33 12 250 37.5 83 dihw2046 33 12 125 18.8 83 dihw2047 33 15 100 15 83 24 (9 ~ 40) 48 (18 ~ 80) model name 110 (36 ~160)
8 mechanical drawing 11112 13 15 24 23 side view bottom view 0.20 [0.008"] 10.50 [0.413"] 31.8 [1.25"] 3.90 [0.154"] 2.54 [0.100"] 0.60 [0.024"] 2.54 [0.100"] 15.22 [0.600"] 20.3 [0.80"] 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: phone: +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 requ est from delta. information furnished by delta is believed to be accurate and re liable. 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. pin sin g le output dual output 1+vin +vin 11 nc common 12 -vout nc 13 +vout -vout 15 nc +vout 23 -vin -vin 24 -vin -vin
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