wf 30r 12/98 rev a page 1 30 w att r egulated , 4:1 w ide i nput r ange , h igh d ensity dc/dc c onverter wf30r product data sheet internet: http://www.cdpowerelectronics.com power electronics division, united states 3400 e britannia drive, tucson, arizona 85706 phone: 800.547.2537 fax: 520.770.9369 power electronics division, europe c&d technologies (power electronics) ltd. 132 shannon industrial estate , shannon, co. clare, ireland tel: +353.61.474.133 fax:+353.61.474.141 applications telecommunication applications battery powered systems process control equipment transportation equipment distributed power systems features 9-36 v dc & 18-75 v dc input ranges industry standard pinouts input and output filtering single and triple outputs extended temperature range: -40 0 c to +100 o c baseplate temperature remote on/off function input reverse voltage protection fixed frequency operation excellent cross-regulation six-sided shielding short circuit protection en60950, ul 1950 safety approvals pending emc en55022 level a description the wf30r series is a family of high performance dc/dc converters. the unit is housed in a space-saving shell and com- bines low cost with high perfomance across all line and load conditions. a 10% output trim feature is provided, allowing the user to compensate for long line lengths. the wf30r se- ries is assembled by a fully automated process using surface mount components for increased reliability. the converter?s rugged, low-profile, aluminium housing provides excellent emi/ rfi shielding. other features include: ? full regulation down to zero load ? under voltage lock-out, auto-start ? internal temperature shutdown, auto-reset ? soft start ? remote on/off (available in positive or negative logic) ? remote sense (available in single outputs) ? over current protection ? output over voltage protection ? output voltage adjust agency approvals pending
wf30r 12/98 rev a page 2 parameter conditions min typ max units input voltage range wf30r24xxyzz 9 24 36 v dc wf30r48xxyzz 18 48 75 v dc reflected ripple current 50 75 ma input control temperature shutdown 107 c temperature hysteresis 5 c quiescent standby current current into + v in 8 10 ma undervoltage shutdown wf30r24xxyzz 7.5 v wf30r48xxyzz 16.5 v undervoltage hysteresis wf30r24xxyzz 1 v wf30r48xxyzz 1 v isolation rated voltage 1500 v dc test voltage 60hz, 10 seconds 1500 vpk resistance 10 g ? capacitance 1000 pf leakage current v iso =240v ac , 60hz 100 arms output rated power 30 w voltage setpoint accuracy single & main outputs +1.5 % aux. outputs, triples +3.0 % temperature coefficient 0.2 %/c line regulation single & main outputs high line to low line 0.1 % aux. outputs, triples 0.7 % load regulation single & main outputs min load to nom. load 0.4 % aux. outputs, triples mn load to nom. load 0.6 % ripple & noise single & main outputs bw = 5hz to 20mhz 50 80 mvpk-pk aux. outputs, triples bw = 5hz to 20mhz 80 120 mvpk-pk output adjust range all outputs 10 12 % short circuit and overcurrent protection single & main output 7.5 a general switching frequency 300 khz mttf per ml-hdbk-217 circuit stress method ground benign ta = +25 unmodified database 1,500,000 hr package weight 85 g temperature operation/specification case temperature -40 +100 c storage case temperature -55 +110 c shutdown temperature case temperature +105 +110 c thermal impedance, case-ambient 7 c/w electrical specifications specifications typical at t a =25 c, nominal input voltage, rated output current unless otherwise stated. model nominal rated output input current efficiency input output output current nom load (a) % voltage (v dc )(v dc ) min load (a) nom load (a) max load (a) wf30r24s03 24 3.3 0.0 9.0 11.0 1.488 84 wf30r24s05 24 5.0 0.0 6.0 7.5 1.488 84 wf30r24s12 24 12.0 0.0 2.5 3.0 1.471 85 wf30r24s15 24 15.0 0.0 2.0 2.4 1.471 85 wf30r24t312 24 3.3 + 12 0.0 6.0 + 0.417 7.5 + 0.521 1.506 83 wf30r24t315 24 3.3 + 15 0.0 6.0 + 0.333 7.5 + 0.416 1.506 83 wf30r24t512 24 5 + 12 0.0 4.0 + 0.417 5.0 + 0.521 1.488 84 wf30r24t515 24 5 + 15 0.0 4.0 + 0.333 5.0 + 0.416 1.488 84 wf30r48s03 48 3.3 0.0 9.0 11.0 0.727 86 wf30r48s05 48 5.0 0.0 6.0 7.5 0.727 86 wf30r48s12 48 12.0 0.0 2.5 3.0 0.718 87 wf30r48s15 48 15.0 0.0 2.0 2.4 0.718 87 wf30r48t312 48 3.3 + 12 0.0 6.0 + 0.417 7.5 + 0.521 0.735 85 wf30r48t315 48 3.3 + 15 0.0 6.0 + 0.333 7.5 + 0.521 0.735 85 wf30r48t512 48 5 + 12 0.0 4.0 + 0.417 5.0 + 0.521 0.727 86 wf30r48t515 48 5 + 15 0.0 4.0 + 0.333 5.0 + 0.416 0.727 86 common specifications specifications typical at t a =25 c, nominal input voltage, rated output current unless otherwise stated.
wf30r 12/98 rev a page 3 mechanical notes: all dimensions are in inches (millimeters). pin placement tolerance: +0.015? ( +0.2mm) threaded insert (hex) for fixing to pcb. marked with specific model ordered, date, code, job code. material: units are enclosed in an aluminum case. lead material is brass with a solder plated surface to allow ease of solderability. pin connections pin # single triple 1 remote on/off remote on/off 2 +vin +vin 3 -vin -vin 4 -sense -aux 5 +sense +aux 6 com com 7 +vout +vout 8 adj adj notes: a ?c? designator indicates the aluminum shell is connected internally to the common output return pin. an ?f? designator indicates the aluminum shell is floating and is not connected to any part of the converter circuitry. an ?m? designator indicates the aluminum shell is connected internally to the main output return pin. an ?n? designator indicates the aluminum shell is connected internally to the negative input voltage pin. a ?p? designator indicates the aluminum shell is connected internally to the positive input voltage pin. ordering information - wf30r xxyzz device family indicated 30 watt regulated dc/dc converter model number selected from table of electrical characteristics where: xx = input voltage y = number of outputs (single ?s?, triple ?t?) zz = output voltage shell connection (c,f,m,n,p) refer to notes. remote on/off logic positive logic - no number negative logic - 1 the information provided herein is believed to be reliable; however, c&d technologies assumes no responsibility for inaccuracie s or omissions. c&d technologies assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user?s own risk. pr ices and specifications are subject to change without notice. no patent rights or licenses to any of the circuits described herein are implied or granted to any third party. c&d technologie s does not authorize or warrant any c&d technologies product for use in life support devices/systems or in aircraft control applications. (12.18 + 0.13) wf30rxxyzz top view bottom view side view (61.04 + 0.13) (76.14 + 0.13) (6.34) (63.45) (50.76) (6.29) (0.51) (1.52) (20.30) (10.15) (12.69) (12.69) (20.30) (40.60) threaded insert
wf30r 12/98 rev a page 4 performance graphs efficiency (%) 15v 12v 5v 3v output ripple vs. temperature normalized output ripple -40 -15 25 65 110 tcase (c) trim resistor vs. output voltage change 50 45 40 35 30 25 20 15 10 5 0 1098 76 5 432 1 percentage change in output voltage trim resistor (k ohms) 5 5 3 -trim +trim thermal derating curve temperature (c) percentage of rated output load (%) -40 0 85 95 100 105 110 115 120 130 100 80 60 40 20 0 ambient case 10 5 0 -5 -10 -40 -15 25 65 110 100% load 20% load tcase (c) change in efficiency (%) - 10 -5 0 5 10 change in efficiency (%) 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 vin efficiency vs. input voltage ll nom hl 50%load 10%load 100%load 15+trim 12 15 -trim percentage change in output voltage 100 90 80 70 60 50 40 30 20 10 0 10 9 8 7 6 5 4 3 2 1 trim resistor vs. output voltage change trim resistor (k ohms) efficiency vs. output load 90 85 80 75 70 65 60 55 50 10 20 40 50 60 80 100 output load (% or rated) 1.4 1.2 1 0.8 0.6 0.4 output ripple vs. input voltage normalized output ripple vin ll nom hl 12 15 15 +trim -trim trim undervoltage lockout threshold voltages nominal input shutdown low shutdown high voltage range voltage (v1) voltage (v2) off on 24 7.5 8.5 48 16.5 17.5 specifications typical at ta=25 c, rated output current. hysteresis graph 1.2 1 0.8 0.6 efficiency vs. temperature
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