product data sheet 25 watt dc/dc converters key features ? wide input 18 to 75 vdc ? short circuit protection ? 1500 vdc isolation ? remote shutdown ? external trim adjustment ? en55022 class a ? ul60950 recognized ? planar magnetics ? ce (lvd) applications ? telecom-pac? designed for telecommunications equipment ? distributed power systems ? wireless base stations ? industrial control system designed for the demanding requirements of the telecom munications industry. manufactured with surface mount components and utilize planar magnetics. general electrical specifications (specifications at nominal input and 25 c, nominal input voltage and rated output current unless other wise noted.) parameter limits conditions v in 18 - 75 vdc wide input efficiency 78 - 85 % typical nominal line, full load i/o isolation 1500 vdc size 2" x 2" x 0.4" operating temperature -40 c to +90 c case storage temperature -55c to +125c case temperature coefficient .02% per c ripple/noise 75 mv pk-pk max 20mhz bandwidth output accuracy 2% full load, nominal line line regulation 0.2% full load load regulation 0.5% 10 - 100% of full load short circuit protection continuous, self-recovering overvoltage clamp 130 - 150% of output, recovers remote on/off open collector referenced to pin 2 high or floating - enable low - disable ce lvd transient response see note minimum load required 10% of full load emi-rfi en55022 class a case copper www.datasheet.co.kr datasheet pdf - http://www..net/
product data sheet note: transient response. the output step load response for a step change in load from 100% to 50% will rec over to a final output voltage no greater than 0.5% above t he 100% load output voltage. this recovery will typ ically be within 300 microseconds with a maximum overshoot of 5% of the final output voltage. the recovery voltage overshoot/undershoot will have no more than three c rossovers of the final output voltage. the output step load response for a step change in load from 50% to 100% will recover to a final outp ut voltage no less than 0.5% below the 10% load output voltage . this recovery will typically be within 300 micros econds with a maximum undershoot of 5% of the final output voltage. the recovery voltage overshoot/undershoot will have no more than three crossovers of the final out put voltage. selection guide device type input voltage range vdc input current a(max) output voltage vdc output current a(max) 25a48r3.3 18 - 75 .70 3.3 7.50 25a48r5 18 - 75 .70 5.0 5.00 25a48r5ss* 18 - 75 .70 5.0 5.00 25A48R12 18 - 75 .70 12.0 2.08 25a48r13.2 18 - 75 .75 13.2 2.00 25a48r15 18 - 75 .70 15.0 1.67 25a48r16 18 - 75 .70 16.0 1.56 *ss ? soft-start; v out rises monotonically to the final value in 40ms. approximately 0.6-second power on delay. mechanical specification (dimensions in inches) pin connections: pin single output 1 + input 2 - inout 3 + output 4 adjust (+5v only) 5 output common 6 enable reliability power locations headquarters & customer service sales reliability power, incorporated 33 musick irvine, ca 92618 usa tel: (949) 305-6700 fax: (949) 305-6701 www.reliabilitypower.com reliability power, incorporated attention: sales tel: (805) 449-1667 fax: (805) 557-4530 sales@reliabilitypower.com copyright? 2000-2006, reliability power inc. relia bility power inc. reserves the right to make change s in the product at any time, without notification. 25 watt.doc 10 may 2006 notes (all devices and packages): 1. all dimensions in parentheses are metric 2. tolerances unless otherwise specified: .xx .03 (.76) .xxx .015 (.38) 3. pin 6 is optional www.datasheet.co.kr datasheet pdf - http://www..net/
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