the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. f24xxm - 1w a/2 - 2012 page 1 of 2 f24xxm-1w series 1w, fixed input, isolated & unregulated single output dc-dc converter rohs product program input output voltage (vdc) current (ma) part number nominal range voltage (vdc) min max efficiency (%, typ) package style F2405M-1W 5 200 20 72 sip f2412m-1w 12 83 9 78 sip f2424m-1w 24 21.6-26.4 24 42 3 78 sip isolation specifications item test conditions min typ max units isolation voltage tested for 1 minute and 1 ma max 3000 vdc isolation resistance test at 500vdc 1000 m isolation capacitance 100 pf common specifications item test conditions min typ max units storage humidity 95 % operating temperature -40 85 storage temperature -55 125 temp. rise at full load 15 30 lead temperature 1.5mm from case for 10 seconds 300 c short circuit protection* 1 s cooling free air convection case material plastic (ul94-v0) mtbf 3500 k hours weight 1.4 g features high efficiency up to 80% 3000vdc isolation temperature range: -40 c to+85 c no heat sink required no external component required internal smd construction industry standard pinout rohs compliance applications the f24xxm-1w series is specially designed for applications where a group of polar power supplies are isolated from the input power supply in a distr ibuted power supply system on a circuit board. these products apply to: 1) where the voltage of the input power supply is fixed (voltage variation 10%); 2) where isolation is necessary between input and output (isolation voltage 3000vdc); 3) where the regula tion of the output voltage and the output ripple noise are not demanding. such as: purely digital circuits, ordinary low frequency analog circuits, and igbt power device driving circuits. model selection F2405M-1W product series input voltage output voltage package style rated power mornsun science & technology co.,ltd. address: no. 5, kehui st. 1, kehui development center, science ave., guangzhou science city, luogang district, guangzhou,p.r.china. tel: 86-20-38601850 fax:86-20-38601272 http://www.mornsun-power.com * supply voltage must be discontinued at the end of short circuit duration.
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. f24xxm - 1w a/2 - 2012 page 2 of 2 output specifications application note item test conditions min typ max units output power 0.1 1 w line regulation for vin change of 1% 1.2 (5v output) 10 15 (9v output) 8.3 15 (12v output) 6.8 15 (15v output) 6.3 15 load regulation 10% to 100% load (24v output) 6.0 15 % output voltage accuracy see tolerance envelope graph temperature drift 100% full load 0.03 %/ c ripple& noise* 20mhz bandwidth 100 150 mvp-p switching frequency full load, nominal input 100 khz *test ripple and noise by parallel cabl e method. see detailed operation instructions at testing of power converter section, application notes. note: 1. all specifications measured at t a =25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. see below recommended circuits for more details. 3. operation under minimum load will not damage the converter; however, they may not meet all specification listed, and that will reduce the life of product. typical characteristics operating temp.(c) o outline dimensions & pin connections pin 1 2 3 4 function gnd vin 0v +vo footprint details note: unit:mm[inch] pin section tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] mechanical dimensions recommended footprint tube outline dimensions note: unit :mm[inch] general tolerances: 0.50mm [ 0.020inch] l=530mm[20.866inch] pcs/tube: 43 l=220mm[8.661inch] pcs/tube: 17 (front view) (bottom view) notegrid 2.54*2.54mm : . short tube inner package dimensions: l*w*h= 255*170*80mm short tube outer package dimensions(with six inner package boxes): l*w*h= 375*280*270mm long tube inner package dimensions: l*w*h= 580*200*100mm long tube outer package dimensions(with two inner package boxes): l*w*h= 600*215*220mm long tube outer package dimensions(with three inner package boxes): l*w*h= 600*215*325mm 1 6 . 9 0 [ 0 . 6 6 5 ] 9.60[0.378] 1 2 . 4 0 [ 0 . 4 8 8 ] 4.90[0.193] 0.50[0.020] 0.50 [0.020] 10.00 [0.394] 4.10 [0.161] 1 2 3 4 0.30[0.012] 11.60[0.457] 0.90 [0.035] 6.00[0.236] 7.62[0.300] ? 1.00 [0.039] 1 2 3 4 requirement on output load to ensure this module can operate efficiently and reliably, during operation, the min imum output load could not be less than 10% of the full load . if the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company s products with a lower rated output power. recommended circuit if you want to further decrease the input/output ripple, an lc filtering network may be connected to the input and output ends of the dc/dc converter, see (figure 1). l vin gnd +vo 0v dc cin l dc cout (figure 1) it shou ld also be noted that the inductance and the frequency of the lc filtering network should be staggered with the dc/dc frequency to avoid mutual interference. however, the capacitance of the output filter capacitor must be proper. if the capacitance is to o big, a startup problem might arise. for every channel of output, provided the safe and reliable operation is ensured, the recommended capacitance of its filter capacitor sees (table 1). external capacitor table (table 1) vin (vdc) cin (uf) single vout (v c) cout (uf) 24 1 5 10 - - 9 4.7 - - 12 2.2 - - 15/24 1 it s not recommend to connect any external capacitor in the application field with less than 0.5 watt output. output voltage regulation and over- voltage protection circuit the simplest device fo r output voltage regulation, over-voltage and over- current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series (figure 2). vin gnd 0v +vout dc dc reg vin gnd 0v +vout dc dc reg (figure 2) overload protection under normal operating conditions, the output circuit of these products has no protection against overload. the simplest method is to connect a self- recovery fuse in series at the input end or add a circuit breaker to the circuit. no parallel connection or plug and play.
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