cui .com date 08/15/2013 page 1 of 7 series: pyb15 description: dc-dc converter date page 1 of 7 features ? up to 15 w isolated output ? industry standard pinout ? 4:1 input range (9~36 v, 18~75 v) ? smaller package ? single/dual regulated outputs ? 1,500 vdc isolation ? continuous short circuit, over current protection, over voltage protection ? temperature range (-40~85c) ? six-sided metal shielding ? 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 (%) pyb15-q24-s3 24 9~36 3.3 200 4000 13.2 100 87 pyb15-q24-s5 24 9~36 5 150 3000 15 100 90 pyb15-q24-s12 24 9~36 12 63 1250 15 100 89 pyb15-q24-s15 24 9~36 15 50 1000 15 100 89 pyb15-q24-s24 24 9~36 24 31 625 15 100 90 PYB15-Q24-D5 24 9~36 5 75 1500 15 100 86 pyb15-q24-d12 24 9~36 12 32 625 15 100 88 pyb15-q24-d15 24 9~36 15 25 500 15 100 88 pyb15-q48-s3 48 18~75 3.3 200 4000 13.2 100 87 pyb15-q48-s5 48 18~75 5 150 3000 15 100 89 pyb15-q48-s12 48 18~75 12 63 1250 15 100 88 pyb15-q48-s15 48 18~75 15 50 1000 15 100 90 pyb15-q48-d5 48 18~75 5 75 1500 15 100 86 pyb15-q48-d12 48 18~75 12 32 625 15 100 88 pyb15-q48-d15 48 18~75 15 25 500 15 100 89 notes: 1. ripple and noise are measured at 20 mhz bw by ?parallel cable? method part number key pyb15 - q xx - xxx - x input voltage output voltage heatsink base number s = single d = dual "blank" = no heatsink h = with heatsink output
cui .com cui inc series: pyb15 description: dc-dc converter date 08/15/2013 page 2 of 7 input parameter conditions/description min typ max units operating input voltage 24 v input models 48 v input models 9 18 24 48 36 75 vdc vdc start-up voltage 24 v input models 48 v input models 9 17.8 vdc vdc under voltage shutdown 24 v input models 48 v input models 7.5 16 vdc vdc surge voltage for maximum of 1 second 24 v input models 48 v input models -0.7 -0.7 50 100 vdc vdc start-up time nominal input, constant load 10 ms lter pi lter ctrl 1 models on (ctrl open or connect ttl high level, 2.5-12 vdc) models off (ctrl connect gnd or low level, 0-1.2 vdc) input current (models off) 1 ma note: 1. ctrl pin voltage is referenced to gnd. output parameter conditions/description min typ max units line regulation full load, input voltage from low to high 0.2 0.5 % load regulation 5% to 100% load 0.5 1 % cross regulation dual output models: main output 50% load, secondary output from 5% to 100% load 5 % voltage accuracy 1 3 % voltage balance dual output, balanced loads 0.5 1 % adjustability 2 10 % switching frequency pwm mode 300 khz transient recovery time 25% load step change 300 500 s transient response deviation 25% load step change 3 5 % temperature coef cient 100% load 0.02 %/c note: 2. output trimming available on single output models only. protections parameter conditions/description min typ max units short circuit protection hiccup, continuous, automatic recovery over current protection 160 % over voltage protection 3.3 vdc output models 5 vdc output models 12 vdc output models 15 vdc output models 24 vdc output models 3.9 6.2 15 18 30 vdc vdc vdc vdc vdc safety and compliance parameter conditions/description min typ max units isolation voltage for 1 minute at 1 ma max. 1,500 vdc isolation resistance at 500 vdc 1,000 m conducted emissions cispr22/en55022, class a, class b (external circuit required, see figure 1-b) radiated emissions cispr22/en55022, class a, class b (external circuit required, see figure 1-b) esd iec/en61000-4-2, class b, contact 4kv radiated immunity iec/en61000-4-3, class a, 10v/m
cui .com cui inc series: pyb15 description: dc-dc converter date 08/15/2013 page 3 of 7 safety and compliance (continued) parameter conditions/description min typ max units eft/burst iec/en61000-4-4, class b, 2kv (external circuit required, see figure 1-a) surge iec/en61000-4-5, class b, 2kv (external circuit required, see figure 1-a) conducted immunity iec/en61000-4-6, class a, 3 vr.m.s voltage dips & interruptions iec/en61000-4-29, class b, 0%-70% mtbf as per mil-hdbk-217f @ 25c 1,000,000 hours rohs compliant yes environmental parameter conditions/description min typ max units operating temperature see derating curves -40 85 c storage temperature -55 125 c storage humidity non-condensing 5 95 % case temperature at full load, ta=71c 105 c vibration 10~55 hz for 30 min. along x, y and z axis 10 g solderability parameter conditions/description min typ max units hand soldering 1.5 mm from case for 10 seconds 300 c wave soldering see wave soldering pro le 260 c mechanical parameter conditions/description min typ max units dimensions board mount: 50.8 x 25.4 x 11.8 board mount with heatsink: 50.8 x 25.4 x 16.3 mm mm case material aluminum alloy weight board mount board mount with heatsink 28 36 g g 0 50 100 150 200 250 time (sec.) temperature ( ) peak.temp 260 max 10 max sec every wave soldering time 4 sec.max
cui .com cui inc series: pyb15 description: dc-dc converter date 08/15/2013 page 4 of 7 units: mm[inch] tolerance: 0.3[0.012] pin diameter tolerance: 0.10[0.004] pin height tolerance: 0.50[0.020] mechanical drawing board mount with heatsink board mount to p v i e w front view top view pcb layout grid size: 2.54mm x 2.54mm pin connections pin single output dual output 1 gnd gnd 2 vin vin 3 +vo +vo 4 trim 0v 50v -vo 6 ctrl ctrl pin connections pin single output dual output 1 gnd gnd 2 vin vin 3 +vo +vo 4 trim 0v 50v -vo 6 ctrl ctrl units: mm[inch] tolerance: 0.3[0.012] pin diameter tolerance: 0.10[0.004] pin height tolerance: 0.50[0.020] top view pcb layout grid size: 2.54mm x 2.54mm front view bottom view
cui .com cui inc series: pyb15 description: dc-dc converter date 08/15/2013 page 5 of 7 test configuration dc cin lin dc load oscilloscope current probe recommended external circuit components vin (vdc) 24 48 fuse choose according to input current mov s14k35 s14k60 ldm1 56 h56 h tvs smcj48a smcj90a c0 330 f/50v 330 f/100v c1 1 f/50v 1 f/100v ldm2 4.7 h 4.7 h cy1 1nf/2kv 1nf/2kv cy2 1nf/2kv 1nf/2kv emc recommended circuit ldm2 c0 tvs ldm1 mov fuse (a) (b) c1 vin gnd + vin gnd +vo -vo (0v) eut load cy1 cy2 figure 1 figure 2 table 1 table 2 note: input re ected-ripple current is measured with an inductor lin and capacitor cin to simulate source impedance. external components lin 4.7 h cin 220 f, esr < 1.0 at 100 khz derating curves 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 60 85 70 80 single output voltage 5 v dual output voltage 5 v dual output voltage > 5 v single output voltage > 5 v safe operating area without heatsink with heatsink 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 60 85 75 safe operating area without heatsink with heatsink 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 60 85 70 80 safe operating area without heatsink with heatsink 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 85 75 65 safe operating area without heatsink with heatsink
cui .com cui inc series: pyb15 description: dc-dc converter date 08/15/2013 page 6 of 7 1. recommended circuit this series has been tested according to the following recommended testing circuit before leaving the factory. this series shou ld be tested under load (see figure 2). if you want to further decrease the input/output ripple, you can increase the capacitance acc ord- ingly or choose capacitors with low esr (see table 3). however, the capacitance of the output lter capacitor must be appropriate. if the capacitance is too high, a startup problem might arise. for every channel of the output, to ensure safe and reliable operat ion, the maximum capacitance must be less than the maximum capacitive load (see table 4). 2. output voltage trimming leave open if not used. application circuit for trim pin formula for trim resistor (part in broken line is the interior of models) note: value for r1, r2, r3, and vref refer to table 5 r t : trim resistor a: user-de ned parameter, no actual meanings vo': the trim up/down voltage application notes figure 3 figure 4 table 3 table 4 table 5 single vout (vdc) cin ( f) cout ( f) dual vout (vdc) cin ( f) cout 1 ( f) 3.3 100 470 -- -- -- 5 100 470 5 100 220 12 100 220 12 100 100 15 100 220 15 100 100 24 100 100 -- -- -- vout (vdc) r1 (k ) r2 (k ) r3 (k ) vref (v) 3.3 4.801 2.863 15 1.24 5 2.883 2.864 10 2.5 12 10.971 2.864 17.8 2.5 15 14.497 2.864 17.8 2.5 24 24.872 2.863 20 2.5 note: 1. minimum load shouldn't be less than 5%, otherwise ripple may increase dramatically. operation under minimum load will not damage the converter, however, they may not meet all speci cations listed. 2. maximum capacitive load is tested at input voltage range and full load. 3. all speci cations are measured at ta=25c, humidity<75%, nominal input voltage and rated output load unless otherwise speci ed. +vo 0v r 2 r 1 r 3 v re f r t trim 0v r 2 r 1 r 3 v ref r t trim +vo tr im up tr im do wn dc dc vi n gnd +vo 0v cin cout vi n gnd +vo 0v cin cout dc dc -vo cout dual outpu t single output a -a r 2 a r 1 r 2 -a r 1 -r 3 -r 3 : a= vref vref vo - vref vo - vref r 1 r= t : a= r 2 r= t up down note: 1. for each output. note: 1. for each output. single vout (vdc) max. capacitive load ( f) dual vout (vdc) max. capacitive load 1 ( f) 3.3 10200 -- -- 5 4020 5 4800 12 1035 12 800 15 705 15 500 24 470 -- --
cui inc series: pyb15 description: dc-dc converter date 08/15/2013 page 7 of 7 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 device 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 06/26/2013 1.01 updated spec 08/15/2013 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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