for more information, please visit the product page. ????????? ?????????????????? cui .com date 02/12/2014 page 1 of 6 series: prf20 description: dc-dc converter date page 1 of 6 features ? up to 20 w isolated output ? 4:1 input range (43~160 v) ? smaller package ? single/dual regulated outputs ? meets european en50155 railway standard ? 2,250 vdc isolation ? continuous short circuit, over current protection, over voltage protection ? built-in remote on/off ? wide operating temperature range (-40~85c) ? efficiency up to 90% model input voltage output voltage output current output power ripple and noise 1 ef ciency typ (vdc) range (vdc) (vdc) min (ma) max (ma) max (w) max (mvp-p) typ (%) prf20-q110-s5 110 43~160 5 0 4000 20 75 88.5 PRF20-Q110-S12 110 43~160 12 0 1670 20 100 90 prf20-q110-s15 110 43~160 15 0 1330 20 100 89.5 prf20-q110-d12 110 43~160 12 0 833 20 100 89 prf20-q110-d15 110 43~160 15 0 667 20 100 88.5 note: 1. ripple and noise are measured at 20 mhz bw by and 1 f ceramic capacitor across each output. prf20 - q110 - xxxx part number key output voltage base number s = single d = dual output remote on/off control "blank" = positive logic n = negative logic
for more information, please visit the product page. ?????????????????? cui .com cui inc series: prf20 description: dc-dc converter date 02/12/2014 page 2 of 6 input parameter conditions/description min typ max units operating input voltage 43 110 160 vdc under voltage shutdown power up power down 40 38 vdc vdc surge voltage for maximum of 100 ms 200 vdc start-up time single output models dual output models 15 25 ms ms ctrl 1 positive logic models on (open or 3.5~75 vdc) models off (0~1.2 vdc) negative logic models on (0~1.2 vdc) models off (open or 3.5~75 vdc) lter pi lter note: 1. open collector refer to -vin. output parameter conditions/description min typ max units maximum capacitive load 5v output model 12v output model 15v output model 12v output model 15v output model 5600 1000 1000 680 350 f f f f f line regulation from high line to low line 0.2 % load regulation from full load to no load single output models dual output models 0.5 1 % % cross regulation dual output models, load cross variation 10%/100% 5 % voltage accuracy 1.5 % adjustability 2 10 % switching frequency 250 khz transient response 25% load step change 250 s temperature coef cient 0.03 %/c note: 2. output trimming available on single output models only protections parameter conditions/description min typ max units short circuit protection continuous over current protection 110 160 % over voltage protection protected by internal zener or tvs clamp 5v output model 12v output model 15v output model 12v output model 15v output model 6.2 15 18 15 18 vdc vdc vdc vdc vdc safety and compliance parameter conditions/description min typ max units isolation voltage input to output for 1 minute 2,250 vdc isolation resistance 1000 m safety approvals ul60950-1 emi/emc en55022 class a, en50155 (external circuit required) rohs 2011/65/eu
for more information, please visit the product page. ?????????????????? cui .com cui inc series: prf20 description: dc-dc converter date 02/12/2014 page 3 of 6 1.00 [25.4] 0.10 [2.5] 1.800 bottom view pcb layout top view front view [45.72] 2.00 [50.8] 0.22 min. [5.6] 0.040 [1.02] 621 0.200 [5.08] 0.600 [15.24] 0.20 [5.1] 0.40 [10.2] 0.10 [2.5] 3 5 4 0.400 [10.16] 0.400 [10.16] 1.00 [25.4] 0.10 [2.5] 1.800 [45.72] 2.00 [50.8] 6 2 1 0.200 [5.08] 0.600 [15.24] 0.20 [5.1] 0.10 [2.5] 354 0.400 [10.16] 0.400 [10.16] environmental parameter conditions/description min typ max units operating temperature see derating curve -40 85 c storage temperature -55 125 c humidity non-condensing 95 % case temperature 105 c vibration en50155 (en61373) solderability parameter conditions/description min typ max units wave soldering see wave soldering pro le 260 c mechanical parameter conditions/description min typ max units dimensions 2.00 x 1.00 x 0.40 (50.8 x 25.4 x 10.2 mm) inch case material black coated copper with non-conductive base weight 35 g mechanical drawing 0 50 100 150 200 250 300 0 20 40 60 80 100 120 140 160 180 time (seconds) temperature (c) notes: 1. soldering materials: sn/cu/ni 2. ramp up rate during preheat: 1.4c/s (from 50c to 100c) 3. soaking temperature: 0.5c/s (from 100c to 130c), 6020 seconds 4. peak temperature: 260c, above 250c for 3~6 seconds 5. ramp down rate during cooling: -10c/s (from 260c to 150c) units: inch[mm] tolerance: x.xx = 0.02[0.5] x.xxx = 0.010[0.25] 1.3 mm plated through hole 2.5 mm pad size pin connections pin single dual 1 +vin +vin 2 -vin -vin 3 +vout +vout 4 trim -vout 5 -vout common 6 remote on/off
for more information, please visit the product page. ?????????????????? cui .com cui inc series: prf20 description: dc-dc converter date 02/12/2014 page 4 of 6 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 60 80 73 105 120 temperature derating curve safe operating area derating curves emc recommended circuit figure 2 figure 1 table 2 table 1 test configuration cin l1 to oscilloscope +vin -vin +vo -vo r-load vin + - note: input re ected-ripple current is measured with an inductor l1 to simulate source impedance. external components lin 12 h cin 22 f, esr < 0.2 at 100 khz external components 3a time delay fuse tvs +vin -vin +vo -vo r-load vin + - fuse tvs en50155(en50121-3-2)
for more information, please visit the product page. ?????????????????? cui .com cui inc series: prf20 description: dc-dc converter date 02/12/2014 page 5 of 6 application notes note: 1. all speci cations are measured at ta=25c, nominal input voltage and full output load unless otherwise speci ed. output voltage trimming leave open if not used. table 3 vout (vdc) r1 (k ) r2 (k ) r3 (k ) rt (k ) vr (v) 5 2.32 2.32 0 8.2 2.5 12 6.8 2.4 2.32 22 2.5 15 8.06 2.4 3.9 27 2.5 +vin r trim-up r-load trim +vo -vin -vo trim up +vin -vin -vo +vo r trim-down r-load trim trim down r trim - up = ( ) - rt (k) r trim - down = r1 x ( -1) - rt (k) v r x r1 x ( r2 + r3 ) ( v o - v o, nom ) x r2 v r x r1 ( v o, nom - v o ) x r2 note: r trim-up is the external resistor in k r trim-down is the external resistor in k v o, nom is the nominal output voltage v o is the desired output voltage r1, r2, r3, rt, and vr are internal (see table 3). figure 3 formula for trim resistor application circuit for trim pin
for more information, please visit the product page. ????????? cui inc series: prf20 description: dc-dc converter date 02/12/2014 page 6 of 6 cui offers a two (2) year limited warranty. complete warranty information is listed on our website. cui reserves the right to make changes to the product at any time without notice. information provided by cui is believed to b e accurate and reliable. however, no responsibility is assumed by cui for its use, nor for any infringements of patents or other rights of third parties which may result from its use . cui products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support devi ce or system, or to affect its safety or effectiveness. headquarters 20050 sw 112th ave. tualatin, or 97062 800.275.4899 fax 503.612.2383 cui .com techsupport@cui.com rev. description date 1.0 initial release 02/12/2014 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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