temperature coefcient 0.03%/c typical on all outputs. environmental designed for 0 to 50c operation at full rated output power; derate output current and total output power by 2.5% per c above 50c. medical emi/emc compliance all models include built-in emi fltering to meet the following emissions require - ments: ac input 85-264 vac, 47-63 hz single phase. input current maximum input current at 120 vac, 60 hz with full rated output load is 0.85 a. hold-up time 15 ms minimum from loss of ac input at full load, nominal line (120 vac). output power normal continuous output power is 28 w, 32 w peak for 60 s maximum dura - tion, 10% duty cycle. factory set to begin power limiting at approximately 35 w. overload protection fully protected against short circuit and output overload. short circuit pro - tection is cycling type power limit. output noise 0.5% rms, 1% pk-pk, 20 mhz bandwidth, diferential mode. measured with scope probe directly across output terminals of the power supply with load terminated with 0.1 f capacitor. overvoltage protection built in with fring point set per ratings table. ovp fring reduces voltage to less than 50% of nominal voltage in 50 ms. voltage adjustment factory set with fxed resistors to maximize reliability. efciency 70% minimum for the 5.1 v model at full rated load, nominal input voltage. efciency increases as output voltage increases. input protection internal ac fuse provided on all units. designed to open only if a catastrophic failure occurs in the unit. inrush current inrush limited by internal thermistor. the inrush at 230 vac, averaged over the frst ac half-cycle under cold start conditions will not exceed 32 a. minimum load requirement 5% of full load rating transient response 3.5% max. dev. 50% load step at 0.2 a/ s. recovery to 0.5% within 500 s. gsm28 medical 28 watt global performance switchers ?findustrysfsmallestf28fwfmedicallyfapprovedfswitcher ?fcompactfsizef(4.00fxf2.59fxf0.92) ?fwide-rangefacfinput:f85-264fvac ?flessfthanf25fafleakagefcurrentf@f120fvac ?fapprovedftoful2601-1,fen60601-1 ?femiftoffcc,fcisprf11fclassfb/iec601-1-2 ?fovervoltagefprotectionfstandard ?frohsfcompliantfmodelsfavailablef(gfsufx) global performance switchers all specifcations are typical at nominal input, full load at 25 o c unless otherwise stated features: d c p o w e r s u p p l i e s ffspecifications ?fffffffffmarkedftoflvd emi specifications compliance level conducted emissions static discharge rf field susceptibility fast transients/bursts surge susceptibility line frequency harmonics en55011 class b; fcc class b en61000-4-2, 6 kv contact, 8 kv air en61000-4-3, 3 v/meter en61000-4-4, 2 kv, 5 khz en61000-4-5, 1 kv dif., 2 kv com. en61000-3-2 class a earth leakage current leakage current measured in the gnd wire connection when measured per en60601-1 or ul2601-1 is as follows: medical medical safety sl power electronics corp. declares under our sole responsibility that all gsm models are in conformity with the applicable requirements of ul2601-1 patient care equipment, csa-c22.2 no. 234 (with additional tests to c22.2 no. 601.1 per t.i.l. ca-08), en60601-1. medical normal singlefault test test model leakage leakage voltage method gsm28 25a 45 a 132 vca/60 hz ul2601-1 gsm28 50 a 90 a 264 vca/50 hz iec60601-1
sl power electronics corp., 6050 king drive, bldg. a, ventura, ca 93003, usa. phone:(805) 486 4565 fax:(805) 487 8911 www.slpower.com rev. 1/07. data sheet ? 2007 sl power electronics corp. the information and specifcations contained in this data sheet are believed to be correct at time of publication. however, condor accepts no responsibility for consequences arising from reproduction errors or inaccuracies. specifcations are subject to change without notice. environmentalffspecifications operating non-operating temperature (a) see individual specs -40 to +85c humidity (a) 0 to 95% rh 0 to 95% rh shock (b) 20 g pk 40 g pk altitude -500 to 10,000 ft -500 to 40,000 ft vibration (c) 1.5 g rms 0.003 g 2 /hz 5 g rms 0.026 g 2 /hz gsm28fmechanicalfspecifications a. units should be allowed to warm up/operate under non-condensing conditions before application of power. b. shock testinghalf-sinusoidal, 10 3 ms duration, direction, 3 or - thogonal axes, total 6 shocks. c. , random vibration10 to 2000hz, 6db/octave roll-of from 350 to 2000hz 3 orthogonal axes. tested for 10 min./axis operating and 1 hr./axis non-operating. medical model output current load regulation initial setpoint tolerance ovp setpoint ripple and noise gsm28-5 5.1 v 5.5 a 0.75% 2.5% 6.2 0.6 v 1.4% GSM28-12 12 v 2.3 a 0.75% 2.5% 14 1.0 v 1% gsm28-15 15 v 1.9 a 0.75% 2.5% 18.5 1.5 v 1% gsm28-24 24 v 1.2 a 0.75% 2.5% 28 2.5 v 1% gsm28-28 28 v 1.0 a 0.75% 2.5% 34 2.8 v 1% * add g sufx to model number for rohs compliant model.
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