A_D-W25 & B_LD-W25 Series 0.25W, FIXED INPUT, ISOLATED & UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER multi-country patent protection RoHS FEATURES PRODUCT PROGRAM 1KVDC Isolation DIP Package Internal SMD Construction Temperature Range: -40°C to +85°C No Heat sink Required No External Component Required Industry Standard Pinout RoHS Compliance Input Part Number Output Efficiency (%, Typ) Voltage (VDC) Current (mA) 3.3 75.8 62 5 50 65 A0505D- W25 ±5 ±25 62 A0509D- W25* ±9 ±13.8 64 A0512D- W25* ±12 ±10.4 66 A0515D- W25* ±15 ±8.3 65 5 50 64 B0509 LD- W25* 9 27.8 65 B0512 LD- W25 12 20.8 67 specially designed for applications where a B0515 LD- W25 15 16.7 65 group of polar power supplies are isolated from A1205D- W25* ±5 ±25 62 the input power supply in a distributed power A1209D- W25* ±9 ±13.8 63 supply system on a circuit board. A1212D- W25* ±12 ±10.4 64 These products apply to: A1215D- W25* ±15 ±8.3 65 1) Where the voltage of the input power supply B1203 LD- W25* 3.3 75.8 62 B1205 LD- W25 5 50 65 2) Where isolation is necessary between input B1209 LD- W25* 9 27.8 66 and output (isolation voltage ≤1000VDC); B1212 LD- W25 12 20.8 67 3) Where the regulation of the output voltage B1215 LD- W25* 15 16.7 66 A2405D- W25* ±5 ±25 63 A2409D- W25* ±9 ±13.8 64 A2412D- W25* ±12 ±10.4 65 A2415D- W25* ±15 ±8.3 65 5 50 63 B2409 LD- W25* 9 27.8 63 B2412 LD- W25* 12 20.8 65 B2415 LD- W25* 15 16.7 65 B2424LD- W25* 24 10.4 64 Nominal B0303LD-W25* B0305LD-W25* B0505LD- W25 APPLICATIONS The A_D-W25 & B_LD-W25 Series are is fixed (voltage variation ≤ ±10%); and the output ripple noise are not demanding. Such as: purely digital circuits, ordinary low frequency analog circuits, and IGBT power device driving circuits. B2405 LD- W25 MODEL SELECTION B0505 LD -W25 Voltage (VDC) Range 3.3 5 12 24 3.0-3.6 4.5-5.5 10.8-13.2 21.6-26.4 Max *Designing Rated Pow er Pack age S ty le O utpu t Volt age Input Volta ge Produ ct Se ries COMMON SPECIFICATIONS Item Test conditions Min Typ -40 85 Storage Temp. Range -55 125 Storage humidity range Address: 2th floor 6th building, Hangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 http://www.mornsun-power.com °C % Free air convection Temp. rise at full load Lead temperature Units 95 Cooling MORNSUN Science & Technology co.,Ltd. Max Operating Temp. Range 15 1.5mm from case for 10 seconds 25 °C 300 Short circuit protection* 1 Case material s Plastic (UL94-V0) MTBF 3500 Weight K hours 2.1 g *Supply voltage must be discontinued at the end of short circuit duration. MORNSUN reserves the copyright Specifications subject to change without notice. A_D-W 25 & B_LD-W25 A/1-2008 Page 1 of 2 ISOLATION SPECIFICATIONS APPLICATION NOTE Item Test conditions Min Typ Max Units Isolation voltage Tested for 1 minute and 1 mA max 1000 VDC Isolation resistance Test at 500VDC 1000 MΩ 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, OUTPUT SPECIFICATIONS Item and that Test conditions Min Typ Output power For Vin change of 1% (3.3output) (others output) Line regulation Load regulation 10% to 100% load operated under no load! If the actual output 0.25 W power is very small, please connect a resistor ±1.5 with proper resistance at the output end in ±1.2 parallel to increase the load. 12 20 (5V output) 10.5 15 (9V output) 8.3 10 (12V output) 6.8 10 (15V output) 6.3 10 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 See tolerance envelope graph Temperature drift 100% full load Ripple & Noise* 20MHz Bandwidth 50 Switching frequency Full load, nominal input 100 be Units (3.3 output) Output voltage accuracy this product should never Max input end or add a circuit breaker to the circuit. 0.03 %/°C 75 mVp-p KHz Recommended circuit If you want to further decrease the input/output “LC” *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power ripple, Converter section, application notes. connected to the input and output ends of the an filtering network Note: 1.All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2.Dual output models unbalanced load: ±5%. DC/DC converter, see (Figure 1). D u al O utpu t be L L +Vo Vin TYPICAL CHARACTERISTICS may Cout DC DC Cin 0V L Cout GND -Vo Sin g le O utpu t L Vin L +Vo Cout DC DC Cin GND 0V (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 o Operating Temp.( C) mutual interference. However, the capacitance of the output filter capacitor must be proper. If the OUTLINE DIMENSIONS & PIN CONNECTIONS capacitance is too big, a startup problem might Fi rst A ngle P ro jecti on 7.62 (0.300) 10. 00 (0.394) arise. It’s not recommended to connect any external capacitor in the application field . RECOMMENDED FOOTPRINT Top view, grid: 2.54*2. 54mm(0. 1*0.1inch) diameter:1.00 (0. 039)mm (Side View) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage Single Output 4.10 (0. 161) 7.00 (0.276) 20.00(0.787) 14 15.24(0.600) 1 14 (Bottom View) 11 11 regulation, 9 8 7 1 Dual Output Du a l O u tput Vi n MORNSUN reserves the copyright over-current or output end in series (Figure 2). 14 FOOTPRINT DETAILS Single Pin Dual 1 GND GND 7 NC NC 0V 8 0V +Vo +Vo 9 11 No Pin -Vo 14 Vin Vin and overheat protection that is connected to the input 7 9 8 over-voltage protection is a linear voltage regulator with 11 R EG 9 8 GN D 1 REG +Vout REG -Vo ut REG +Vout 0V DC DC 7 Sing le Ou tp ut Vi n Note: Unit:mm(inch) Pin section:0.50*0.30mm(0.020*0.012inch) Pin tolerances: 0.10mm( 0.004inch) General tolerances: 0.25mm( 0.010inch) Specifications subject to change without notice. R EG GN D DC DC 0V (Figure 2) No parallel connection or plug and play. A_D-W25 & B_LD-W25 A/1-2008 Page 2 of 2