dc/dc converters high current, high efficiency, low profile 1 2 year warranty new product all specifications are typical at nominal input, full load at 25c ambient unless otherwise stated specifications file name: quarter_brick_dual.pdf rev: 04 jan 2004 ? t wo independent outputs ? high full load efficiency ? wi de ambient temperature range of -40oc to +85oc ? up to 100% load imbalance ? t racking, monotonic start-up ? starts into pre-biased outputs ? basic insulation system ? over-voltage and over-temperature protection ? 100v, 100ms input voltage transient response ? secondary side control, no optocouplers, fast transient load response these are new high efficiency, open-frame, isolated 40a converters in an industry standard dual quarter-brick footprint. these converters deliver high output current at low voltages, and excellent useable power density for todays high end applications. this series features an input voltage range of 36 to 75vdc and output voltages of 1.2v/3.3v, 1.5v/3.3v, 1.8v/3.3v 2.5v/3.3v, and 5.0v/3.3v. the output voltage on each model is adjustable from 90% to 110% of the nominal value. typical efficiencies are 90%. this series also has a r emote on/off capability. over-current and over-voltage protection features are included as standard. designed to meet international safety agency approvals, including en60950-1 and ul/cul60950, this series reduces compliance costs and time to market. quarter-brick series dual output emc characteristics immunity: esd air enclosure en61000-4-2 8kv/6kv (o/p within spec.) radiated field enclosure en61000-4-3 10v/m (o/p within spec.) conducted en61000-4-6 10v (o/p within spec.) input transients 100v, 100ms general specifications efficiency see table basic insulation input/output 2250vdc switching frequency fixed 480khz approvals and (see notes 1 and 2) en60950-1 vde standards ul/cul 60950 material flammability ul94v-0 w eight 34g (1.2oz) mtbf telcordia tech sr-332 2,883,816 hours environmental specifications thermal performance operating ambient., -40c to +85c temperature non-operating -55c to +125c protection short-circuit continuous over-voltage non-latching thermal 125oc hot spot temperature with automatic recovery output specifications v oltage adjustability both outputs 10% min. minimum load both outputs 0% ripple and noise 20mhz bandwidth 50mv pk-pk max. 15mv rms max. short circuit protection both outputs tu r n-on characteristics both outputs monotonic input specifications input voltage range 48v nominal 36 to 75vdc input current no load 80ma max. remote off 6ma max. active high remote on/off logic compatibility open collector ref to -input on open circuit or >2.4vdc off <0.4vdc undervoltage lockout power up 35.5v (typ.) power down 33.5v (typ.) start-up time power up 14ms (typ.) remote on/off 14ms (typ.) patent no. 6,765,810 other patents pending international safety standard approvals ul/cul can/csa 22.2 no. 60950-00 : ul 60950 file no. e135734 vde certificate no. 10401-3336-0197
for the most current data and application support visit www.artesyn.com/powergroup/products.htm dc/dc converters high current, high efficiency, low profile 2 new product file name: quarter_brick_dual.pdf rev: 04 jan 2004 notes 1 user must provide recommended fuses in order to comply with safety approvals. see application note 137. 2 maximum continuous output power. 90 watts for lqd40a48-3v3-1v2 models 96 watts for lqd40a48-3v3-1v5 models 102 watts for lqd40a48-3v3-1v8 models 116 watts for lqd40a48-3v3-2v5 models 67.5 watts for lqd30a48-3v3-1v2 models 72 watts for lqd30a48-3v3-1v5 models 76.5 watts for lqd30a48-3v3-1v8 models 87 watts for lqd30a48-3v3-2v5 models 99.5 watts for lqd25a48-5v0-3v3 models 3 i o1 = imax, i o2 = imax. l = low profile number of outputs d = dual lqd40a48-3v3-1v8ra part number system with options rated output current (sum of all outputs) 40a = 40 amps remote on/off logic no suffix = positive suffix r = negative output voltage of v1 1v8 = 1.8 volts 1v2 = 1.2 volts body height, package type and pin length a = 0.300 (7.62 mm), through hole, 0.188 (4.78 mm) pins e = 0.340 (8.64 mm), through hole, 0.188 (4.78 mm) pins q = 1/4 brick nominal rated input voltage 48 = 48 volts (36 to 75v range) output voltage of v2 3v3 = 3.3 volts quarter-brick series dual output output voltage output ovp efficiency nominal initial set point (3) regulation band current trip point (typ.) model number 12 1 2 1 2 12 1 2 quarter-brick dual output performance models 1.2v 3.3v 1.18 - 1.22v 3.25 - 3.35v 1.16 - 1.24v 3.2v - 3.4v 20a 20a 1.5v 4.0v 90.0% lqd40a48-3v3-1v2 1.5v 3.3v 1.48 - 1.55v 3.25 - 3.35v 1.44 - 1.55v 3.2v - 3.4v 20a 20a 1.8v 4.0v 90.5% lqd40a48-3v3-1v5 1.8v 3.3v 1.77 - 1.83v 3.25 - 3.35v 1.75 - 1.85v 3.2v - 3.4v 20a 20a 2.0v 4.0v 90.5% lqd40a48-3v3-1v8 2.5v 3.3v 2.46 - 2.54v 3.25 - 3.35v 2.42 - 2.58v 3.2v - 3.4v 20a 20a 3.0v 4.0v 90.5% lqd40a48-3v3-2v5 quarter-brick dual output value models 1.2v 3.3v 1.18 - 1.22v 3.25 - 3.35v 1.16 - 1.24v 3.20v - 3.40v 15a 15a 1.5v 4.0v 90.0% lqd30a48-3v3-1v2 1.5v 3.3v 1.48 - 1.52v 3.25 - 3.35v 1.44 - 1.55v 3.20v - 3.40v 15a 15a 1.8v 4.0v 90.5% lqd30a48-3v3-1v5 1.8v 3.3v 1.77 - 1.83v 3.25 - 3.35v 1.75 - 1.85v 3.20v - 3.40v 15a 15a 2.0v 4.0v 90.5% lqd30a48-3v3-1v8 2.5v 3.3v 2.46 - 2.54v 3.25 - 3.35v 2.42 - 2.58v 3.20v - 3.40v 15a 15a 3.0v 4.0v 91.0% lqd30a48-3v3-2v5 3.3v 5.0v 3.25 - 3.35v 4.92 - 5.08v 3.20 - 3.40v 4.85v - 5.15v 15a 10a 4.0v 6.0v 91.0% lqd25a48-5v0-3v3
for the most current data and application support visit www.artesyn.com/powergroup/products.htm dc/dc converters high current, high efficiency, low profile 3 new product data sheet ? artesyn technologies ? 2004 the information and specifications contained in this data sheet are believed to be correct at time of publication. however, art esyn technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. specifications are subject to change without notice. no rights under any patent accompany the sale of any such product(s) or information contained herein. please consult our website for the following items: ? application note ? longform data sheet www.artesyn.com file name: quarter_brick_dual.pdf rev: 04 jan 2004 0.188 (4.78) dimensions in inches (mm) to lerances (unless otherwise specified) x.xx 0.02 (x.x 0.5) x.xxx 0.010 (x.xx 0.25) 2.30 (58.4) 2.000 (50.80) 1.45 (36.8) 0.725 0.020 (18.42 0.51) top view 0.350 (8.89) 1 2 3 4 5 6 7 0.145 0.020 (3.68 0.51) 0.350 (8.89) ?0.040 0.002 (?1.02 0.05) (7 pls) 0.250 (6.35) 0.250 (6.35) 0.125 (3.18) 0.250 (6.35) height (see option table) clearance (see option table) 2.30 (58.4) 2.000 (50.80) 1.45 (36.8) 0.725 0.020 (18.42 0.51) 0.350 (8.89) 1 2 3 4 5 6 7 0.145 0.020 (3.68 0.51) 0.350 (8.89) ?0.054 0.003 (?1.37 0.08) (7 pls) 0.250 (6.35) 0.125 (3.18) 0.250 (6.35) 0.250 (6.35) pin connections pin number function 1+vin 2 on/off 3-vin 4 o/p 1 5 o/p rtn 6t rim 7 o/p 2 dimension options option stand off height body height a 0.030 (0.76) min. 0.300 (7.62) max. e 0.070 (1.78) min. 0.340 (8.64) max. quarter-brick series dual output
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