the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. b_s-1w & b_d-1w a/3-2009 page 1 of 3 b_s-1w & b_d-1w series 1w, fixed input isolated & unregulated single output miniature sip/dip package multi-country patent protection rohs product program input output voltage (vdc) current (ma) part number nominal range voltage (vdc) max. min. efficiency (%, typ.) ul ce b0303s/d-1w 3.3 303 30 72 b0305s/d-1w 3.3 2.97-3.63 5 200 20 74 b0503s/d-1w 3.3 303 30 72 b0505s/d-1w 5 200 20 70 ul ce b0509s/d-1w 9 111 12 78 ul ce b0512s/d-1w 12 83 9 79 ul ce b0515s/d-1w 5 4.5-5.5 15 67 7 80 ul ce b1203s/d-1w 3.3 303 30 72 b1205s/d-1w 5 200 20 71 ul ce b1209s/d-1w 9 111 12 76 ul ce b1212s/d-1w 12 83 9 78 ul ce b1215s/d-1w 12 10.8-13.2 15 67 7 80 ul ce b2405s/d-1w 5 200 20 73 ul ce b2409s/d-1w 9 111 12 78 ul ce b2412s/d-1w 12 83 9 79 ul ce b2415s/d-1w 24 21.6-26.4 15 67 7 80 ul ce note: the b_s-w2 & b_d-w2 series also are available in our company. common specification item test conditions min. typ. max. units storage humidity 95 % operating temperature -40 85 storage temperature -55 125 temp. rise at full load 15 25 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 1.6 g * supply voltage must be discontinued at the end of short circuit duration. isolation specifications item test conditions min. typ. max. units isolation voltage tested for 1 minute and 1ma max 1000 vdc isolation resistance test at 500vdc 1000 m features efficiency up to 80% small footprint miniature sip/dip package 1kvdc isolation temperature range: -40 c ~ +85 c internal smd construction industry standard pinout no heat sink required no external component required pcb mounting rohs compliance applications the b_s-1w & b_d-1w series are specially designed for applications where a single power supply is isolated from the input power supply in a distributed 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 isola tion is necessary between input and output (isolation voltage 1000vdc); 3) where the regulation of the output voltage and the output ripple and noise are not demanding. such as: purely digital circuits, ordinary low frequency analog circu its and igbt power device driven circuits, etc. model selection b0505s-1w product series input voltage output voltage package style rated power mornsun science & technology co.,ltd. address: 2th floor 6th building, huangzhou industrial district, guangzhou, china tel: 86-20-38601850 fax:86-20- 38601272 http://www.mornsun-power.com http://
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. b_s-1w & b_d-1w a/3-2009 page 2 of 3 output specifications typical characteristics item test conditions min. typ. max. units output power 0.1 1 w for vin change of 1%(3.3v output) 1.5 line regulation for vin change of 1%(others ) 1.2 10% to 100% load (3.3v output) 15 20 10% to 100% load (5v output) 12.8 15 10% to 100% load (9v output) 8.3 10 10% to 100% load (12v output) 6.8 10 load regulation 10% to 100% load (15v output) 6.3 10 % output voltage accuracy see tolerance envelope graph temperature drift 100% full load 0.03 %/ c ripple & noise* 20mhz bandwidth 75 100 mvp-p switching frequency full load, nominal input 100 khz * test ripple and noise by parallel cable method. see detailed operation instructions at testing of power converter section, application notes. operating temp.(c) o application note recommended circuit requirement on output load to ensure this module can operate efficiently and reliably, during operation, the minimum output load is not less than 10% of the full load, and that this product should never be operated under no 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 (b_s-w2 & b_d-w2 series). 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). it should 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 th e capacitance is too big, a startup problem might arise. for every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (table 1). output voltage regulation and over-voltage protection circuit the simplest device for 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). 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 vin gnd +vo 0v dc c l l dc c (figure 1) vin gnd vin gnd reg +vo 0v +vo dc dc dcdc reg 0v (figure 2) external capacitor table (table 1) vin (vdc) cin (uf) vout (vdc) cout (uf) 3.3/5 4.7 3.3/5 10 12 2.2 9 4.7 24 1 12 2.2 - - 15 1 it s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. http://
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. b_s-1w & b_d-1w a/3-2009 page 3 of 3 outline dimensions & footprint details 1 3 2 4 bsw _- 1 vin gnd +vo l=530mm[20.866inch] : 43pcs(b_s-1w) 40pcs(b_d-1w) l=220mm[8.661inch] : 17pcs(b_s-1w) 16pcs(b_d-1w) tube quantity tube quantity ?? 1.00 [0.039] 1 7 5 4 1 2 34 0 . 3 0 [ 0 . 0 1 2 ] 11.60[0.461] 0.50[0.020] 0.90[0.035] 6 . 0 0 [ 0 . 2 3 6 ] 0 . 5 0 [ 0 . 0 2 0 ] 1 0 . 0 0 [ 0 . 3 9 4 ] 4.10[0.161] 7.62[0.300] 1.90[0.075] 7.62[0.300] 2.54[0.100] 0 . 9 0 [ 0 . 0 3 5 ] 2 . 5 4 [ 0 . 1 0 0 ] 1 6 . 7 0 [ 0 . 6 5 7 ] 9.40[0.370] 1 2 . 2 0 [ 0 . 4 8 0 ] 0.60[0.024] 4.70[0.185] 0 . 3 0 [ 0 . 0 1 2 ] 12.70[0.500] 7.62[0.300] 1 0 . 0 0 [ 0 . 3 9 4 ] 7 . 6 2 [ 0 . 3 0 0 ] 5.08[0.200] ?? 1.00 [0.039] 8 . 2 0 [ 0 . 3 2 3 ] 7 . 7 0 [ 0 . 3 0 3 ] 0.50[0.020] 4 . 1 0 [ 0 . 1 6 1 ] bswseries _- 1 bdw _- 1series 7 . 6 2 [ 0 . 3 0 0 ] 2.54[0.100] 2 . 5 4 [ 0 . 1 0 0 ] ?? 1.00 [0.039] 75 1 4 1234 bsw _- 1series bdw _- 1series 9 . 3 7 [ 0 . 3 6 9 ] 0.60[0.024] 11.70[0.461] 1 4 . 7 0 [ 0 . 5 7 9 ] 5.30[0.209] bdw _- 1series 0v 1 5 4 7 bdw _- 1 vin gnd +vo 0v bsw _- 1series pin footprint details note: unit:mm[inch] pin section tolerances:0.10mm[0.004inch] general tolerances:0.25mm[0.010inch] mechanical dimensionsrecommended footprint tube dutline dimensions note: unit :mm[inch] general tolerances: 0.50mm[0.020inch] (side view) (bottom view) pin footprint details note: 1. operation under minimum load will not damage the converter; however, they may not meet all specification listed. 2. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 3. in this datasheet, all the test methods of indications are based on corporate standards. 4. only typical models listed, other models may be different, please contact our technical person for more details. http://
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