e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 1 of 10 applications distributed power architectures telecommunications equipment lan/wan applications data processing applications features low profile (<8.5mm) 2000 vdc input to output isolation meets basic insulation high efficiency start - up into high c apacitive load low conducted and radiated emi output overcurrent protection output overvoltage protection overtemperature protection back drive protection remote sense set point accuracy 1% remote on/off (primary referenced), positive or negative logi c output voltage trim adjust ul 1950 recognized, csa 22.2 no. 950 - 95 certified, tuv iec950 description the new e2s15 series of single - output dc/dc converters, offer unprecedented density and performance in an eighth brick, which is 40% smaller than the tr aditional quarter - brick footprint. patent pending technology combined with thermally optimized construction allows the e2s15 to provide 15a of output current in an 8.5mm package without a heatsink. and the e2s15 series requires minimal derating to operatin g in high ambient temperatures. the 100% surface mount design provides consistent high quality and reliability and the smt mounting option eliminates the need for separate (additional manual) operations to mount the converters to the motherboards during ma ss production. selection chart model input voltage r ange, vdc input current, m ax, adc output v oltage, vdc output rated c urrent, i rated adc output ripple / noise, typ, mv p - p efficiency @ i rated, typical , % e2s15zy 36 - 75 0.62 1.2 15 30 81.5 e2s 15za 36 - 75 0.77 1.5 15 30 83.5 e2s15zb 36 - 75 0.9 1.8 15 30 84.5 e2s15zc 36 - 75 1.0 2.0 15 30 85.5 e2s15zd 36 - 75 1.2 2.5 15 30 87 e2s15ze 36 - 75 1.60 3.3 15 30 88 e2s10zg 36 - 75 1.65 5.0 10 30 86
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 2 of 10 absolute maximum ratings stresses in excess of the abs olute maximum ratings may cause performance degradation, adversely effect long - term reliability , and cause permanent damage to the converter. parameter conditions/description min max units input voltage continuous 100 m s 75 100 vdc vdc operating tempe rature ambient - 40 85 c storage temperature - 55 125 c on/off control voltage referenced to - vin 20 vdc environmental and mechanical specifications all specifications apply over specified input voltage, output load , and temperature range, unless oth erwise noted. parameter conditions/description min nom max units shock halfsine wave, 3 axes 50 g sinusoidal vibration gr - 63 - core, section 5.a.2 1 weight 0.53 (15 ) oz/g water washing standard process yes mtbf te l cordia tr - 332, method i ca se 1 2.6 mhrs isolation specifications all specifications apply over specified input voltage, output load , and temperature range, unless otherwise noted. parameter conditions/description min nom max units insulation safety rating basic isolation v oltage 2000 vdc isolation resistance 10 mohm isolation capacitance 160 pf input specifications all specifications apply over specified input voltage, output load , and temperature range, unless otherwise noted. parameter conditions/descriptio n min nom max units input voltage continuous 36 48 75 vdc turn - on input voltage ramping up vin= 36 - 75 33 35 vdc turn - off input voltage ramping down vin = 36 - 75 31 33 vdc turn - on time to output regulation band 100% resistive load 3 ms input reflect ed ripple current 25mhz bandwidth 6 ma pk.pk inrush transient vin=vin.max 0.1 a 2 s
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 3 of 10 output specifications all specifications apply over specified input voltage, output load and temperature range, unless otherwise noted. parameter conditions/descrip tion min nom max units output voltage setpoint accuracy vin=vin.nom, full load - 1 1 %vout output current 0 15 adc line regulation vin.min to vin.max, iout.max +/ - 2 +/ - 5 mv load regulation vin=vnom, iout.min to iout.max +/ - 2 +/ - 5 mv total out put voltage regulation over all input voltage, load, and temperature conditions - 3 3 %vout remote sense headroom*** 10% %vout dynamic regulation peak deviation settling time 50 - 75% load step change di/dt = 5 a/ s to 1% error band 140 100 mv m s admissible load capacitance iout.max, nom vin 15,000 m f output current limit threshold** vout =0.97vout.nom 16.5 20 adc switching frequency 435 khz over voltage protection, non latching over al l input voltage and load conditions 115 122 127 %vout trim range iout.max, vin=vnom - 20 +10 %vout ** overcurrent protection is non - latching with auto recovery. *** vout can be increased up to 10% via the sense leads or up to 10% via the trim function, however total output voltage trim from all sources should not exceed 10% of vout (nom) in order to insure specified operation of over - voltage protection circuitry. feature specifications all specifications apply over specified input voltage, outpu t load , and temperature range, unless otherwise noted. parameter conditions/description min nom max units shutdown (on/off) negative logic - converter on - converter off positive logic - converter on - converter off on/off signal is low ? converter is on low logic range high logic range on/off signal is low ? converter is off high logic range low logic range - 20 2.4 2.4 - 20 0.8 20 20 0.8 vdc vdc vdc vdc overtemperature protection (pcb) shut down 118 c
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 4 of 10 output voltage trim the trim feature allows the user to adjust the output voltage from the nominal value. this can be used to compensate distribution drops, perform margining in production, or a ccommodate other requirements when output voltage needs to be adjusted from the nominal. the converter?s output voltage (at the terminals) can be adjusted up 10% or down 20% relative to the nominal output voltage by connecting the trim pin to sense (+) or sense ( - ) via a trim resistor. the trim pin should be left open if the trimming function is not to be used. to trim up the output voltage, a trim resistor, rt - incr, should be connected between trim (pin 6) and sense(+) (pin 7), as illustrated in fig. 1 . the trim - up resistor can be calculated from: fig ure 1 . output voltage trim - up 5.1(100+?)v o - nom ? 624.75 r t - incr = __________________________________ - 10.2 [ko] 1.225 ? where, r t - incr = required value of trim - up resistor v o - nom = nominal value of output voltage insert absolute value bars v o - req - v o - no m ? = _________________________ x 100 [%] v o - nom v o - req = desired (trimmed) output voltage when trimming up, care must be taken not to exceed the converter?s maximum allowable output power. to trim down the output voltage, a trim res istor, r t - decr , should be connected between trim (pin 6) and sense( - ) ( pin 5), as illustrated in fig ure 2 . fig ure 2. output voltage trim - down the trip - down resistor can be calculated from: 510 r t - decr = ____________ - 10.2 [ko] ? where, r t - decr = . required value of trim - down resistor and ? is as defined above.
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 5 of 10 characteristi c c urves load current [adc] 0 2 4 6 8 10 12 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 3 . e2s10zg (5.0v) efficiency vs. load load current [adc] 0 2 4 6 8 10 12 14 16 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 4 . e2s15ze (3.3v) efficiency vs. load load current [adc] 0 2 4 6 8 10 12 14 16 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 5 . e2s15zd (2.5v) efficiency v s. load load current [adc] 0 2 4 6 8 10 12 14 16 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 6 . e2s15zc (2.0v) efficiency vs. load load current [adc] 0 2 4 6 8 10 12 14 16 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 7 . e2s15zb (1.8v) efficiency vs. load load current [adc] 0 2 4 6 8 10 12 14 16 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 8 . e2s15za (1.5v) effici ency vs. load
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 6 of 10 load current [adc] 0 2 4 6 8 10 12 14 16 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 9 . e2s15zy (1.2v) efficiency vs. load load current [adc] 0 2 4 6 8 10 12 14 16 efficiency 0.65 0.70 0.75 0.80 0.85 0.90 0.95 72 v 48 v 36 v figure 10 . e2s15zw (1.0v) efficiency vs. load
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 7 of 10 thermal considerations th e e2s15 series converters are designed for natural or forced convection cooling. the maximum allowable output power of the converters is determined by meeting the derating criteria of all electronic components used in the power supplies. an example of th e derating criteria for the semiconductor junction tem - perature is not to exceed 120 o c to provide reliable long - term operation of the converters. the graphs in fig ures . 11 - 1 8 show the maximum output current of the e2s15 series converters at different ambient temperatures under both natural and forced (airflow direction from pin1 to pin3) convection. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 11 . e2s10zg (5.0v) derating curves ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 5 10 15 20 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 12 . e2s15ze (3.3v) derating curves ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 5 10 15 20 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 13 . e2s15zd (2.5v) derating curves ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 5 10 15 20 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 14 . e2s15zc (2.0v) derating curves ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 5 10 15 20 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 1 5 . e2s15zb (1.8v) derating curves
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 8 of 10 ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 5 10 15 20 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 16 . e2s15za (1.5v) derating curves ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 5 10 15 20 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 17 . e2s15zy (1.2v) derating curves ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 5 10 15 20 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 0 lfm (0 m/s) figure 18 . e2s15zw (1.0v) derating curves
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 9 of 10 mechanical drawing inches (mm) top view 1 2 3 7 8 6 5 4 side view e2s15 pinout (surface mount) top view 1 2 3 7 8 6 5 4 side view e2s15 pinout (through - hole) e2s platform notes all dime n sions are in inches [mm] connector mat e rial: copper connector finish: gold over nickel converter weight: 0.53 oz [15 g] recommended surface - mount pads: min. 0.080? x 0.112? [2.03 x 2.84] max. 0.092? x 0.124? [2 .34 x 3.15] pad/pin connections pad/pin # function 1 vin (+) 2 on/off 3 vin ( - ) 4 vout ( - ) 5 sense( - ) 6 trim 7 sense (+) 8 vout (+) height option ht (max. height) +0.000 [0.00] - 0.038 [ - 0.97] cl (min. clearance) +0.030 [+0.77] - 0.000 [ - 0.00] 0.303 [7.69] 0.030 [0.77] c2 0.336 [8.53] 0.063 [1.60]
e2s series ? eighth - brick dc/dc converter 48v input data sheet 5.0v, 3.3v, 2.5v, 2.0v, 1.8v, 1.5v, 1.2v output r ev . jan 22, 2003 page 10 of 10 ordering information product seri es output current input voltage ou t put vol t age 1 on/off logic surface mount pin length height option e2s 15 z g - n m6 c2 single output eighth - brick format vout1=5 iout = 10a vout1 < 5 iout=15a z = 48vin nom. g = 5.0v e = 3.3v d = 2.5v c = 2.0v b = 1.8v a = 1.5v y = 1.2v w = 1.0v n t neg a tive (blank) t pos i tive m6 t surface mount (blank) t through hole blank t 0.188? 7 t 0.145? 8 t 0.110? not valid w/m6 option see chart below not valid w/m6 option height, clearance and pin options for through hole versions ht (maximum height) cl (minimum clearance) pl pin length height option +0.000 [+0.00] - 0.038 [ - 0.97] +0.030 [+0.77] - 0.000 [ - 0.00] pin option 0.005 [0.13] blank 0.303 [7.69] 0.030 [ 0.77] 0.188 [4.77] c2 0.336 [8.53] 0.063 [1.600] 7 0.145 [3.68] c3 0.400 [10.16] 0.127 [3.23] 8 0.110 [2.79] c4 0.500 [12.70] 0.227 [5.77] pins 1 - 3 and 5 - 7 are f 0.040" (1.02) with f 0.078" (1.98) shoulder pins 4 and 8 are f 0.062" (1.57) without shoulder exam ple: e2s10zg - nm6 indicates a 5.0v output model with negative on/off logic in a smt mounting package. notes 1. consu lt factory for the complete list of available options. 2. power - one products are not authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of power - one, inc. 3. the appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. specifications are subject to change without notice.
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