wall industries, inc. 5 watson brook road exeter, nh 03833 603-778-2300 www.wallindustries.com fax 603-778-9797 yfw15 ultra wide series single and dual output 15 watt dc/dc converter 4:1 wide input voltage range rev b features ul60950-1 licensed 15 watts output power output current up to 3a high efficiency up to 82% fixed switching frequency six-sided continuous shielding 4:1 ultra wide input voltage range standard 2.0 x 1.6 x 0.4 inch package iso9001 certified manufacturing facilities compliant to rohs eu directive 2002/95/ec specifications: yfw15 ultra wide series all specifications apply @ 25c ambient unless otherwise noted input specifications input voltage range ............ 24v nominal input ...........................9-36vdc 48v nominal input ........................ 18-75vdc input filter ....................................................................................... pi type input surge voltage (100ms max) ....... 24v input ...........................50vdc 48v input .........................100vdc input reflected ripple current (n ominal vin and full load) ...........20map-p start up time (nominal vin and c onstant resistive load) .............20ms typ. remote on/off (note 7) (positive logic)............... dc-dc on .............open or 3.5v < vr < 12v dc-dc off .............short or 0v < vr < 1.2v input current of remote control pin (nominal vin) ........ -0.5ma ~ +0.5ma remote off input current (nominal vin) ............................................20ma output specifications output voltage ..............................................................................see table voltage accuracy (nominal vin and full load) ...................................... 1% voltage adjustability........................................................................... 10% output current ..............................................................................see table output power ........................................................................ 15 watts max. line regulation (ll to hl at fl)....................................................... 0.2% load regulation (min load to full load) ........ single.......................... 0.5% dual ............................... 1% cross regulation (dual) (asymmetrical load 25% / 100% fl) ............ 5% minimum load (note 6) ................................................................see table ripple/noise (20 mhz bw) .......................................................... 75mvp-p temperature coefficient ................................................. 0.02% / c max. transient response recovery time (25% load step) ...................... 250s general specifications efficiency.......................................................................................see table switching frequency................................................................270khz typ. isolation voltage (input to output) ....................................... 1600vdc min. isolation resistance............................................................. 10 9 ohms min. isolation capacitance............................................................... 300pf max. protection specifications over voltage protection .......................5v output................................. 6.2v (zener diode clamp) 12v output................................ 15v 15v output................................ 18v over load protection (% of full load at nominal input) ............... 150% max. short circuit protection...................................... hiccup, automatic recovery environmental specifications operating temperature ................................ -40c ~ +85c (with derating) storage temperature .......................................................... -55c ~ +105c maximum case temperature ............................................................. 100c relative humidity...................................................................5% to 95% rh thermal impedance (note 8) natural convection ............................................................. 10c / watt natural convection with heat-sink.................................. 8.24c / watt thermal shock ..................................................................... mil-std-810f vibration ................................10~55hz, 10g, 30 minutes along x, y, and z mtbf (note 1)......................................................................2.041 x 10 6 hrs physical specifications weight ..................................................................................... 48g (1.69 oz) dimensions....................... 2.0 x 1.6 x 0.40 inches (50.8 x 40.6 x 10.2 mm) case material ..............................................................nickel-coated copper base material...................................................non-c onductive black plastic potting material..................................................................epoxy (ul94-v0) shielding......................................................................................... six-sided safety & emc safety standard pending.............................................................ul60950-1 em ......................................en55022 .............................................. class a esd ....................en61000-4-2 ...... .. ............... criteria b radiated immunity..............en61000-4-3............... 10v/m perf. criteria a fast transient.....................en61000-4-4................. 2kv perf. criteria b surge (see note 9).............en61000-4-5................ .1kv perf. criteria b conducted immunity...........en61000-4-6............ 10 vrms perf. criteria a due to advances in technology, specifications subject to change without notice applications measurement wireless network telecom/datacom industry control system semiconductor equipment air 8kv contact 6kv
wall industries, inc. 5 watson brook road exeter, nh 03833 603-778-2300 www.wallindustries.com fax 603-778-9797 yfw15 ultra wide series single and dual output 15 watt dc/dc converter 4:1 wide input voltage range rev b model selection guide output current input current model number input range output voltage min. load full load output (2) ripple & noise no load (3) full load (2) efficiency (4) capacitor (5) load max yfw24s5-3000 5 vdc 210ma 3000ma 75mvp-p 20ma 822ma 80% 6800f yfw24s12-1250 12 vdc 100ma 1250ma 75mvp-p 10ma 801ma 82% 890f YFW24S15-1000 15 vdc 80ma 1000ma 75mvp-p 20ma 801ma 82% 570f yfw24d5-1500 5 vdc 105ma 1500ma 75mvp-p 20ma 822ma 80% 1700f yfw24d12-625 12 vdc 50ma 625ma 75mvp-p 20ma 801ma 82% 300f yfw24d15-500 24 vdc (9-36 vdc) 15 vdc 40ma 500ma 75mvp-p 20ma 801ma 82% 200f yfw48s5-3000 5 vdc 210ma 3000ma 75mvp-p 15ma 411ma 80% 6800f yfw48s12-1250 12 vdc 100ma 1250ma 75mvp-p 15ma 401ma 82% 890f yfw48s15-1000 15 vdc 80ma 1000ma 75mvp-p 10ma 401ma 82% 570f yfw48d5-1500 5 vdc 105ma 1500ma 75mvp-p 10ma 411ma 80% 1700f yfw48d12-625 12 vdc 50ma 625ma 75mvp-p 20ma 401ma 82% 300f yfw48d15-500 48vdc (18-75 vdc) 15 vdc 40ma 500ma 75mvp-p 15ma 401ma 82% 200f notes 1. bellcore tr-nwt-000332. case i: 50% stress, temperat ure at 40oc. (ground fixed and controlled environment). 2. maximum value at nominal input voltage and full load. 3. typical value at nominal input voltage and no load. 4. typical value at nominal input voltage and full load. 5. test by minimum vin and constant resistive load. 6. the output requires a minimum loading to maintain specified regu lations. operation under no-load conditions will not damage the se devices, however they may not meet all listed specifications. 7. the on/off control pin voltage is reference to -vin. 8. heat-sink is optional, please contact factory for ordering details. 9. an external filter capacitor is required if the module has to meet en61000-4-5. t he filter capacitor su ggested is nippon chemi- con ky series, 220 f/100v, esr 48m ? . derating curves & e fficiency graphs
wall industries, inc. 5 watson brook road exeter, nh 03833 603-778-2300 www.wallindustries.com fax 603-778-9797 yfw15 ultra wide series single and dual output 15 watt dc/dc converter 4:1 wide input voltage range rev b mechanical drawing unit: inches (mm) pin connection pin single dual 1 +input +input 2 -input -input 4 ctrl ctrl 5 no pin +output 6 +output common 7 -output -output 8 trim trim external output trimming output can be externally trimmed by using the method shown below. ( ) for dual output trim. 2.00 (50.8) 1.60 (40.6 ) 1. all dimensions in inches (mm) tolerance: x.xx0.02 (x.x0.5) x.xxx0.01 (x.xx0.25) 2. pin pitch tolerance 0.01 (0.25) 0.200 (5.08) 0.70 (17.8) 0.600 (15.24) 1.800 (45.72) 0.400 (10.16) 0.400 (10.16) 0.500 (12.70) 0.700 (17.78) 0.40 (10.2) 0.22 (5.6) 1 2 4 5 8 7 bottom view recommended filter for en55022 class b compliance +vin -vin +vout -vout l1 d/d converter c1 c4 c3 load c2 e input ? input 1 2 3 4 the components used in the figure 1 are as follows: c1 c2 c3 c4 l1 yfw24xxx-xxxx 6.8f/50v n/a 1000pf/2kv 1000pf/2kv 450h common choke yfw48xxx-xxxx 2.2f/100v 2.2f/100v 1000pf/2kv 1000pf/2kv 450h common choke recommended en55022 class b filter circuit layout yfw15 series figure 1 figure
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