north america (usa): 1-888-41-astec europe (uk): 44 (1384) 842-211 asia (hk): 852-2437-9662 2 special features electrical specs special features electrical specs 66watts aeo/alo25 high efficiency ? 2.3 x 0.9 industry standard 8th brick outline ? baseplate or openframe construction ? low ripple and noise ? regulation to zero load ? high capacitive load start-up ? fixed frequency switching for emi predictability ? industry standard features: input uvlo with hysteresis, enable, ovp, ocp, otp, output voltagetrim, differential remote sense ? meets basic insulation ? eu directive 2002/95/ec compliant for rohs environmental operating ambient temperature openframe: -40c to +85c ambient baseplate: -40c to +100c case storage temperature: -55c to +125c mtbf: > 1 million hrs input input range 36 to 75 vdc input surge 100v /100ms input uvlo 33 - 36 v (uvlo on) 31 - 34 v (uvlo off) efficiency 2 93% @ 5 v (typical) output line / load regulation < 0.1% v o (typical) load current up to 25a for vo 1.8v noise/ripple 1 20mv pk-pk (typical for vo 2.5v ) transient response 2% typical deviation (50% to 75% step load) < 100 s settling time (typ) over voltage protection 130% v o typ (autorecovery) over current protection 130% i o,max typ (autorecovery) over temperature 115oc average pcb temperature protection (autorecovery) switching frequency fixed frequency isolation voltage 1500vdc control output voltage trim 10% v o,nom enable ttl compatible (positive or negative logic) safety ul, cul 60950-1 recognized tuv en60950-1 licensed total power: 66 watts input voltages: 48v no. of outputs: single astec industry standard
europe astec house, waterfront business park merry hill, dudley west midlands, dy5 1lx, uk telephone: 44 (1384) 842-211 facsimile: 44 (1384) 843-355 americas 5810 van allen way carlsbad, ca 92008 telephone: 760-930-4600 facsimile: 760-930-0698 3 www.astecpower.com asia units 2111-2116, level 21 tower1, metroplaza 223, hing fong road fwai fong, new territories hong kong telephone: 852-2437-9662 facsimile: 852-2402-4426 ordering information input voltage output voltage output current efficiency 2 model number 36v to 75v 12.0v 4a 93.0% a (x)o04b48 (n) - (6)(s)(l) 36v to 75v 5.0v 12a 92.0% a (x)o12a48 (n) - (6)(s)(l) 36v to 75v 3.3v 20a 91.0% a (x)o20f48 (n) - (6)(s)(l) 36v to 75v 2.5v 20a 90.0% a (x)o20g48 (n) - (6)(s)(l) 36v to 75v 1.8v 25a 88.5% a (x)o25y48 (n) - (6)(s)(l) 36v to 75v 1.5v 25a 86.5% a (x)o25m48(n) - (6)(s)(l) 36v to 75v 1.2v 25a 85.5% a (x)o25k48 (n) - (6)(s)(l) options: (x) : l = open frame / low profile e = baseplate construction (n) : "n" = designates negative logic enable (default is positive enable with no suffix n required) (6) : -6 = 3.7mm nominal pin length (default is 5mm nominal pin length with no suffix -6 required) (s) : -s= surface mount termination (default is through hole termination with no suffix -s required) 7 (l) : l = rohs compliant (rohs 6) / blank - rohs compliant with lead (pb) in solder exemption (rohs 5) single output 1. +vin 2. enable (on/off) 3. -vin 4. -v out 5. -sense 6. trim 7. +sense 8. +v out notes: 1. measured at 20 mhz bandwidth with external 10 f tant. capacitor in parallel with 0.1 f ceramic capacitor connected across +vout and -vout; 220 f e-cap or equivalent connected across +vin and -vin. 2. efficiency measurements taken at full load, nominal line and t a = 25c. 3. all specifications are typical at nominal line, full load and t a = 25c unless otherwise noted. 4. all specifications subject to change without notice. 5. mechanical drawings are for reference only. dimensions are in inches [mm]. pin placement tolerance 0.005 [0.127]. mechanical tolerance 0.02 [0.5], recommended surface mount pads (min: 0.080 x 0.112 [2.03 x 2.84] / max: 0092 x 0.124 [2.34 x 3.15]); through hole pin diameter (pins 4 & 8) ? = 0.062 [1.57], others ? = 0.04 [1.0] (6x). 6. technical reference notes should be consulted for detailed information when available. 7. aeoxxxxxx-sx series (surface mount terminated with baseplate) are not reflow compatible. 8. warranty 2 yrs. astec industry standard aeo / alo25 pin assignment astec reserves the right to make changes to the information contained herein without notice and assumes no liability as a result of its use and application. (rev 02: march 7, 2007). 0.75 [19.1] 2.19 [55.5] 0.15 [3.8] 0.30 [7.6] 0.45 [11.4] 0.60 [15.2] 0.75 [19.1] 0.15 [3.8] 0.45 [11.4] 0.31 [7.9] 0.15 [3.9] 0.32 [8.2] 0.15 [3.8] 0.30 [7.6] 0.45 [11.4] 0.60 [15.2] 0.75 [19.0] 0.15 [3.8] 0.45 [11.4] 0.75 [19.0] 2.00 [50.8] 0.40 [10.1] 0.23 [5.8] pin side down 0.39 [9.8] 0.15 [3.9] alo - openframe smt - termination aeo -basepla te smt - termination th - termination th - termination see a pin length a std pin length: 0.189 [4.8] min 0.205 [5.2] max -6 option: 0.137 [3.5] min 0.152 [3.9] max see a pin 1 pin 8
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