rev a dcm cu2 series 2 watt dc/dc power converters 12/30 /2013 wall industries, inc. ? 37 industrial drive , exeter, nh 03833 ? tel: 603 - 778 - 2300 ? toll free: 888 - 597 - 9255 ? fax 603 - 778 - 9797 website: www.wallindustries.com ? e - mail: sales@wallindustries.com page 1 of 5 size: 0.86 x 0.37 x 0.4 4 inches 21.8 x 9.3 x 11.2 mm features ? ? ? ? ? ? ? ? ? ? ? ? description the dc mcu2 series of dc/dc power converters consists of fully regulated single and dual output models with 4 :1 ultra wid e input voltage ranges of 4.5 - 18 vdc, 9 - 36 vdc, and 18- 75 vdc . these converters provide 2 watt s of ou tput power in a very small sip -8 package occupying only 0. 3 2 s quare inches on the pcb. a n excellent efficiency allows an operating temperature range up to + 75c at full load without derating. further features include 1500vdc i/o isolation, remote on/off control, and short circuit protection. these c onverters are roh s compliant and have csa/ul/iec/en 60950 - 1 safety approvals. the se converters? very compact dimensions make the m an ideal solution for many space critical applications in battery powered instrumentations. model selection table single output models mode l number input voltage output voltage output current input current ripple & noise output power efficiency maximum capacitive load min max no load max load dc mcu2 - 12s33 12 vdc (4.5 - 18 vdc) 3.3 vdc 0ma 5 00ma 6 0ma 183ma 50mvp - p 1w 7 5 % 100 0f dcm cu2 - 12s05 5 vdc 0ma 400ma 208ma 50mvp - p 1w 80% 100 0f dcmcu2 - 12s12 12 vdc 0ma 167ma 204ma 50mvp - p 1w 82% 17 0f dcmcu2 - 12s15 15 vdc 0ma 134ma 204ma 50mvp - p 1w 82% 11 0f dcmcu2 - 24s33 24 vdc (9 - 36 vdc) 3.3 vdc 0ma 500ma 30ma 92ma 50mvp - p 1w 75% 10 00f dcmcu2 - 24s05 5 vdc 0ma 400ma 104ma 50mvp - p 1w 80% 1000f dcmcu2 - 24s12 12 vdc 0ma 167ma 102ma 50mvp - p 1w 82% 170f dcmcu2 - 24s15 15 vdc 0ma 134ma 102ma 50mvp - p 1w 82% 110f dcmcu2 - 48s33 48 vdc (18 - 75 vdc) 3.3 vdc 0ma 500ma 20na 46ma 50mvp - p 1w 74% 1000f dcmcu2 - 48s05 5 vdc 0ma 400ma 52ma 50mvp - p 1w 80% 1000f dcmcu2 - 48s12 12 vdc 0ma 167ma 51ma 50mvp - p 1w 82% 170f dcmcu2 - 48s15 15 vdc 0ma 134ma 51ma 50mvp - p 1w 82% 110f dual output models model number input voltage output voltage o utput current input current ripple & noise output power efficiency maximum capacitive load min max no load max load dcmcu2 - 12d05 12 vdc (4.5 - 18 vdc) 5 vdc 0ma 200ma 60ma 208ma 50mvp - p 1w 80% 470f dcmcu2 - 12d12 12 vdc 0ma 83ma 202ma 50m vp - p 1w 82% 100f dcmcu2 - 12d15 15 vdc 0ma 67ma 204ma 50mvp - p 1w 82% 47f dcmcu2 - 24d05 24 vdc (9 - 36 vdc) 5 vdc 0ma 200ma 30ma 104ma 50mvp - p 1w 80% 470f dcmcu2 - 24d12 12 vdc 0ma 83ma 101ma 50mvp - p 1w 82% 100f dcmcu2 - 24d15 15 vdc 0ma 67ma 102ma 50mvp - p 1w 82% 47f dcmcu2 - 48d05 48 vdc (18 - 75 vdc) 5 vdc 0ma 200ma 20ma 52ma 50mvp - p 1w 80% 470f dcmcu2 - 48d12 12 vdc 0ma 83ma 51ma 50mvp - p 1w 82% 100f dcmcu2 - 48d15 15 vdc 0ma 67ma 51ma 50mvp - p 1w 82% 47f
rev a dcm cu2 series 2 watt dc/dc power converters 12/30 /2013 wall industries, inc. ? 37 industrial drive , exeter, nh 03833 ? tel: 603 - 778 - 2300 ? toll free: 888 - 597 - 9255 ? fax 603 - 778 - 9797 website: www.wallindustries.com ? e - mail: sales@wallindustries.com page 2 of 5 specification s: d cm cu2 series all specifications are based on 25c, nominal input voltage, and maximum output current unless otherwise noted. we reserve the right to change specifications based on technological advances. specification test conditions min typ max unit input specifications input voltage range 12vdc nominal input models 4.5 12 18 vdc 24vdc nominal input models 9 24 36 48vdc nominal input models 18 48 75 input surge voltage (1 sec. max.) 12vdc nominal input models - 0.7 25 vdc 24vdc nominal i nput models - 0.7 50 48vdc nominal input models - 0.7 100 start - up threshold voltage 12vdc nominal input models 3 4 4.5 vdc 24vdc nominal input models 4.5 6 9 48vdc nominal input models 8.5 12 18 input current see table under voltage shutdo wn 12vdc nominal input models 4 vdc 24vdc nominal input models 8 48vdc nominal input models 16 short circuit input power 1500 mw input fuse 12vdc nominal input models 1000ma slow - blow type 24vdc nominal input models 500ma slow - blow typ e 48vdc nominal input models 250ma slow - blow type internal filter type all models c apacitor type output specifications output voltage see table output voltage setting accuracy at 50% load and nominal vin 2.0 %vnom. output voltage balance dual ou tput, balanced loads 1.0 2.0 % line regulation low line to high line 0.3 0.5 % load regulation no load to full load 0.5 1.0 % minimum load no minimum load requirements output power 2 w output current see table ripple & noise 20mhz ban dwidth 50 100 mvp - p transient recovery time 25% load step change 30 0 500 s transient response deviation 25% load step change 3 5 % temperature coefficient 0.01 0.02 %/c protection short circuit protection continuous remote on/off control converter o n open or high impedance converter o ff 2~4ma current applied via 1k resistor m natural convection - 40 +90 c case temperature +105 c storage temperature - 55 +125 c humidity non - condensing 95 % rh cooling natural convection lead temperature 1.5mm from case for 10 seconds 260 c mtbf (calculated) mil - hdbk - 217f at 25c, ground benign 1,0 00,00 0 hours physical specifications weight 0.16oz (4.66 g) dimensions (l x w x h) 0.86 x 0.37 x 0.4 4 inch (21.8 x 9.3 x 11.2 mm) case material flammability to ul 94v - 0 rated non - conductive black plastic pin material alloy 42 safety & emc safety approvals (pending) ul/cul 60950 - 1 recognition ( csa certificate) , iec/en 60950 - 1 (cb - scheme) *due to advances in technology, specifications are subject to change without notice.
rev a dcm cu2 series 2 watt dc/dc power converters 12/30 /2013 wall industries, inc. ? 37 industrial drive , exeter, nh 03833 ? tel: 603 - 778 - 2300 ? toll free: 888 - 597 - 9255 ? fax 603 - 778 - 9797 website: www.wallindustries.com ? e - mail: sales@wallindustries.com page 3 of 5 derating curve mechanical drawing
rev a dcm cu2 series 2 watt dc/dc power converters 12/30 /2013 wall industries, inc. ? 37 industrial drive , exeter, nh 03833 ? tel: 603 - 778 - 2300 ? toll free: 888 - 597 - 9255 ? fax 603 - 778 - 9797 website: www.wallindustries.com ? e - mail: sales@wallindustries.com page 4 of 5 test configurations peak -to - peak output noise measurement test use a 0.47f ceramic capacitor. scope measurement should be made by using a bnc socket, measurement bandwidth is 0 - 20mhz. position th e load between 50mm and 75mm from the dc/dc converter. design & feature considerations remote on/off negative logic remote on/off turns the m odule off during a logic high voltage on the remote on/off pin and on during a logic low. to turn the module on and off , the user must supply a switch to control the voltage betwe en the on/off terminal and the - vin terminal. a logic high is 2~4ma current applied via 1k resistor. a logic low is open circuit or high impedance. maximum capacitive load the dcm cu2 series has a limitation of maximum connected capacitance on the output. the power module may be operated in current limiting mode during start - up, affecting t he ramp- up and the start - up time. the maximum capacitance can be found in the model selection table. over current protection to provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry a nd can endure overload 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. input source impe dance 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. in applications where power is supplied over long lines and output loading is high, it may b e necessary to use a capacitor at the input to ensure startup. a c apacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low eq uivalent series resistance (esr < 1 .0 at 100khz) capacitor of 4.7 f for 12v dc nominal input models and 2.2f for 24 vdc and 48vdc nominal input models . output ripple reduction a good quality low esr capacitor placed as close as possible across the load will give the best ripple and noi se performance. to reduce output ripp le, it is recommended to use 3.3 f capacitors at the output.
rev a dcm cu2 series 2 watt dc/dc power converters 12/30 /2013 wall industries, inc. ? 37 industrial drive , exeter, nh 03833 ? tel: 603 - 778 - 2300 ? toll free: 888 - 597 - 9255 ? fax 603 - 778 - 9797 website: www.wallindustries.com ? e - mail: sales@wallindustries.com page 5 of 5 design & feature considerations thermal considerations many conditions affect the thermal performance of the power module , such as orientation, airflow over the module, and board spacing. to avoid exceeding the maximum temperature rating of the components inside the power module, the case te mperature must be kept below 105c . the derating curves are determined from measurem ents obtained in a test setup. model number setup dcm cu 2 - 24 s 12 series name output power input voltage no. of outputs output voltage 2 : 2 watt s 12: 4.5 ? 18 vdc s: single output 3.3 : 3.3 vdc 24: 9 ? 36 vdc 05: 5 vdc 48: 18 ? 75 vdc 12: 1 2 vdc 15: 15 vdc d: dual output 05: 5 vdc 12: 12 vdc 15: 15 vdc company information wall industries, inc. has created custom and modified units for over 50 years. our in - house research an d development engineers will provide a solution that exceeds your performance requirements on - time and on budget. our iso9001 - 2008 certification is just one example of our commitment to producing a high quality, well - documented product for our customers. our past projects demonstrate our commitment to you, our customer. wall industries, inc. has a reputation for working cl osely with its customers to ensure each solution meets or exceeds form, fit and function requirements. we will continue to provide ongoing support for your project above and beyond the design and production phases. give us a call today to discuss your fut ure projects. contact wall industries for further information: phone: ? (603)778- 2300 toll free: ? (888)597 - 9255 fax: ? (603)778- 9797 e - mail: sales@wallindustries.com web: www.wallindustries.com address: 37 industrial drive exeter, nh 03833
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