A_D-1W & B_LD-1W Series 1W, FIXED INPUT, ISOLATED & UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER FEATURES High Efficiency up to 80% 1KVDC Isolation DIP Package Internal SMD Construction Temperature Range: -40°C ~ +85°C No Heat sink Required No External Component Required Industry Standard Pinout RoHS Compliance PRODUCT PROGRAM Input Part Number & B_LD-1W Series are specially designed for applications where a group of polar power supplies are 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 isolation is necessary between input and output (isolation voltage ≤1000VDC); 3) Where the regulation 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 A0505D-1W Rated Power Package Style Output Voltage Input Voltage Product Series 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 B0303LD-1W B0305LD-1W A0505D-1W A0509D-1W A0512D-1W A0515D-1W B0505LD-W5 B0505LD-1W B0509 LD-1W B0512 LD-1W B0515 LD-1W A1205D-1W A1209D-1W A1212D-1W A1215D-1W B1203 LD-1W B1205 LD-1W B1209 LD-1W B1212 LD-1W B1215 LD-1W A1505D-1W B1515LD-1W A2405D-1W A2409D-1W A2412D-1W A2415D-1W B2405 LD-1W B2409 LD-1W B2412 LD-1W B2415 LD-1W B2424LD-1W Output Voltage (VDC) Nominal APPLICATIONS The A_D-1W RoHS S 3.3 Range 3.0-3.6 5 4.5-5.5 12 10.8-13.2 15 13.5-16.5 24 21.6-26.4 Voltage (VDC) 3.3 5 ±5 ±9 ±12 ±15 5 5 9 12 15 ±5 ±9 ±12 ±15 3.3 5 9 12 15 ±5 15 ±5 ±9 ±12 ±15 5 9 12 15 24 Current (mA) Max Min 303 200 ±100 ±56 ±42 ±33 100 200 111 83 67 ±100 ±56 ±42 ±33 303 200 111 83 67 ±100 67 ±100 ±56 ±42 ±33 200 111 83 67 42 31 20 ±10 ±6 ±5 ±4 10 20 12 9 7 ±10 ±6 ±5 ±4 31 20 12 9 7 ±10 7 ±10 ±6 ±5 ±4 20 12 9 7 4 Efficiency Certificate (%, Typ) 72 74 72 77 79 80 68 70 78 78 80 72 78 79 78 73 71 76 78 79 72 75 73 79 80 80 73 78 78 79 78 UL CE UL CE UL CE UL CE UL UL UL UL UL CE UL CE UL CE UL CE UL UL UL UL UL CE UL CE UL CE UL CE Note: The A_D-W 25/B_LD-W25 series also are available in our company. COMMON SPECIFICATIONS Item Operating Temp. Storage Temp. Range Storage humidity Cooling Temp. rise at full load Lead temperature Isolation voltage Isolation resistance Short circuit protection* Case material MTBF Weight Test conditions Min -40 -55 1.5mm from case for 10 seconds Tested for 1 minute and 1 mA max Test at 500VDC Typ Max Units 85 °C 125 95 % Free air convection 15 25 °C 300 1000 VDC 1000 MΩ 1 s Plastic (UL94-V0) 3500 K hours 2.1 G *supply voltage must be discontinued at the end of short circuit duration. MORNSUN reserves the copyright UL UL UL UL Specifications subject to change without notice. A_D-1W & B_LD-1W A/2-2008 Page 1 of 2 OUTPUT SPECIFICATIONS Item Output power Line regulation Load regulation Overload Protection Test conditions Min 0.1 Max Units 1 W ±1.5 ±1.2 12 20 % 10.5 15 8.3 15 6.8 15 6.3 15 See tolerance envelope graph 0.03 %/°C 50 75 mVp-p 75 100 100 150 100 KHz (3.3V output) (Other output) (3.3V output) (5V output) (9V output) (12V output) (15V output) For Vin change of 1% 10% to 100% load Output voltage accuracy Temperature drift 100% full load (AXXXXD-1W) Ripple & Noise* (BXXXXD-1W) (A/BXX24D-1W) Switching frequency Full load, nominal input 20MHz Bandwidth Typ *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. 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%. Under output normal circuit protection operating of these against conditions, products overload. The the has no simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. 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). Dual Output L L +Vo Vin Cout DC DC Cin 0V L Cout GND -Vo Single Output L L +Vo Vin Cout DC DC Cin GND 0V TYPICAL CHARACTERISTICS (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 the capacitance is too big, a startup problem might arise. For every channel of output, provided the safe and reliable operation is ensured, the recommended capacitance of its Operating Temp.(oC) filter capacitor sees (Table 1). EXTERNAL CAPACITOR TABLE (TABLE 1) OUTLINE DIMENSIONS & PIN CONNECTIONS First Angle Projection RECO MMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) Dual Output 14 11 7 14 14 9 8 1 7 4.7 2.2 2.2 1 regulation, 7 11 5 12 15 24 Single Cout Vout (uF) (VDC) 5 10 9 4.7 12 2.2 15 1 Dual Cout Vout (uF) (VDC) ±5 4.7 ±9 2.2 ±12 1 ±15 0.47 Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage Single Output 1 Cin (uF) It’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. 9 8 1 Vin (VDC) over-voltage and over-current protection is a linear voltage regulator with 9 8 overheat protection that is connected to the input or output end in series (Figure 2). FO OTPRINT DETAILS Pin 1 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) 8 9 11 Single Dual D ual Output GND NC GND NC 0V Vin 0V +Vo No Pin Vin REG REG +Vout REG -Vout REG +Vout 0V DC DC GND +Vo Single Output -Vo Vin Vin APPLICATION NOTE REG GND 0V (Figure 2) 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 DC DC No parallel connection or plug and play. 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 (A_D -W25/B_LD-W25 series) MORNSUN reserves the copyright Specifications subject to change without notice. A_D-1W & B_LD-1W A/2-2008 Page 2 of 2