applied power conversion division of technology dynamics inc. applications applications ltbdc series one to four outputs dc-dc converters 150-600 watts - 2.56" x 5.50" x 11.50" with battery back up option attery back up option the ltbdc family of dc-dc converters was designed to satisfy a market for low cost, high reliability applications. the ltbdc is especially suitable for critical systems in remote locations, severe environment,redundant (n+1) or battery back up uninterruptible operation. this versatile design is loaded with options, making it particularly suitable to telecommunications applications. standard features ? up to 4 outputs. ? all outputs tightly regulated. mtbf > 150,000 hours ? led indicators (each module) input/output power good ? ov/ol/ot protected ? remote inhibit ? compact, light weight ? 5% output adjustment ? terminal block input ? sub-d conn. for output ? meets fcc docket 20780 level a and vde 0871/6.78 level a ? ul1950, csa, 22.2 no.950/iec950 pending available options ? low voltage battery disconnect (lvbd) for battery back-up operation. ruggedized for severe environment wide temp. operation (-30c to +75c) conformal coating ? rack mount/ panel mount ? redundant operation (n+1) configuration ? ? design excellence since 1976! specifications electrical: environmental specifications input: 22-32vdc or 42-56vdc regulation: line 0.3% load 2% ripple: 25mv peak, not to exceed 100mv efficiency: 80% typical single output units. 70% typical for multiple output units. hold-up time: 20ms (minimum) in rush current: 30a max. 1/2 cycle operating temperature: 0c to +50c storage temperature: -30c to +85c cooling: internal ball bearing dc fan dc fan and/or conduction to base plate weight: ~ 6 lbs. (2.7 kg) max. size: 2.56? x 5.50? x 11.50? protections: ov, ol and ot ? as 9100 certificate no: us008267-1
4 mounting holes each side 6-32 thrd 3/16" max penetration 240.03mm/9.45" 292.10mm/11.50" 11.94mm 0.47" 44.58mm 1.76" 23.88mm 0.94" 91.44mm 3.60" 139.70mm 5.50" 56.13mm/2.21" 217.93mm/8.58" 65.02mm 2.56" side view bottom view rear panel (air outlet) input (kulka p/n 671-2 terminal) terminal board tb1 1 chassis gnd (left side) 2 dc return (middle) 42-57v outputs on j1 (sub d p/n ddmz24h7pnk) a4 & a5 (large pins) +5v 60a a6 & a7 (large pins) 5v common (common all outputs) +/- 12v common, tied internally to a6 & a7 a2 (large pins) a3 (large pins) +12v 10a "output good" signal-normally 5v (senses output) -5v 2a 15 (small pin) 13 (small pin) 1, 2, 3 (small pins) a1 (large pins) "input good" signal-normally 5v (senses input) -12v 4a terminals is pulled to output common. 11, 12 (small pins) "inhibit" power supply shuts down if one of these 4, 5, 6 common with a6 & a7 mounting holes, 4 places bottom surface 6-32 thd, .19 max penetration 3 dc+ (right side) a i r input good output good v1 v1 v4 v3 v2 (-) + (+) + cl adjustments fuse input g- + tb1 7 1 j1 model selection redundant operation rack mount / panel mount conformal coating battery back-up -ord -rk/pnl -cc -mil -lvbd ruggedized/militarized backs up main output only. battery is connected to output. low voltage battery disconnect the lvbd module adds a new dimension to battery backup power supplies. the power supply simultaneously charges the battery and powers the load. if the ac power fails, the battery continues to support the load. however, when the battery voltage drops below a predetermined level, the lvbd module disconnects the battery from the load, thereby protecting the battery from the damaging effects of complete discharge. model no. output max. load ltbdc-5-60 5 60 ltbdc-12-40 12 40 LTBDC-24-24 24 24 ltbdc-28-20 28 20 ltbdc-48-12 48 12 single output modules option designations mechanical outline ltbdc series multiple output selection guide ? select first , second, third or fourth output from the tables below. ? second and third output must be equal in voltage and share common ground. ? output four is floating and may be used as positive or negative. example: p/n ltbdc 5-60 a2bc1-suffix +5v 60a, -12v 3a, +12v 3a, +5v 2a * this output can be optionally increased to 10 amps. note: other voltages and currents available, contact the factory. maximum total output power cannot exceed 600 watts. maximum c urrent cannot be exceeded. multiple output modules output #2 (-v2) code output # 3 (+v3) code output #4 (v4) code vdc max amp model vdc @ max amp vdc @ max amp vdc @ max amp 5 60 ltbdc-5-60 -5v @ 3a a1 +5v @ 6a* b1 5v @ 2a* c1 12 40 ltbdc-12-40 -12v @ 3a a 2 +12v @ 3a b2 12v @ 2a c2 24 24 LTBDC-24-24 -15v @ 3a a 3 +15v @ 6a b3 15v @ 2a c3 28 20 ltbdc-28-20 -24v @ 3a a 4 +24v @ 3a b4 24v @ 2a c4 48 12 ltbdc-24-12 48v @ 1a c5 output #1 (v1) multiple o utput m o dule s technology dynamics inc. 100 school street, bergenfield, nj 07621 phone: (201) 385-0500, fax: (201) 385-0702 specifica tions are subject t o change without notice www.technologydynamicsinc.com rev. a
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