DC/DC Converter A_S-2WR2 & B_S-2WR2 series 2W isolated DC-DC converter Fixed input voltage, unregulated single or dual output FEATURES High power density High efficiency up to 86% Operating ambient temperature range: -40 to +105 No external components required Miniature SIP package Industry standard pin-out CB Patent Protection RoHS I/O isolation test voltage 1.5k VDC IEC60950/UL60950/EN60950 Approved A_S-2WR2 & B_S-2WR2 series is designed for use in distributed power supply systems and especially suitable in applications such as pure digital circuits, low frequency analog circuits, relay-driven circuits and data switching circuits, where: 1. The voltage of the input power supply is relatively stable with a variation of 10%Vin or less; 2. An input to output isolation voltage of up to 1500VDC is necessary; 3. The requirement for a tight output regulation is not as strict. Selection Guide Input Voltage (VDC) Certification -- UL/CE/CB (VDC) Current (mA) Max./Min. Full Load Efficiency (%) Min./Typ. A0503S-2WR2 3.3 303/30 67/71 A0505S-2WR2 5 200/20 76/80 A0509S-2WR2 9 111/11 80/84 A0512S-2WR2 12 83/8 80/84 A0515S-2WR2 15 67/7 78/82 24 42/4 80/84 3.3 400/40 75/79 5 400/40 80/84 B0509S-2WR2 9 222/22 75/79 B0512S-2WR2 12 167/17 80/84 B0515S-2WR2 15 133/13 80/84 24 83/8 80/84 5 400/40 75/79 12 167/17 79/83 A1205S-2WR2 5 200/20 76/80 A1209S-2WR2 9 111/11 78/82 A1212S-2WR2 12 83/8 80/84 A1215S-2WR2 15 67/7 80/84 24 42/4 80/84 3.3 400/40 75/79 5 400/40 78/82 B1209S-2WR2 9 222/22 77/81 B1212S-2WR2 12 167/17 80/84 B1215S-2WR2 15 133/13 81/85 B1224S-2WR2 24 83/8 82/86 5 200/20 74/78 15 67/7 77/81 Part No. A0524S-2WR2 -- B0503S-2WR2 Nominal Voltage (Range) 5 (4.5-5.5) B0505S-2WR2 UL/CE/CB B0524S-2WR2 -- UL/CE/CB B0905S-2WR2 B0912S-2WR2 A1224S-2WR2 -- B1203S-2WR2 B1205S-2WR2 UL/CE/CB -- Output A1505S-2WR2 A1515S-2WR2 9 (8.1-9.9) 12 (10.8-13.2) 15 (13.5-16.5) 2020.04.13-A/9 Capacitive Load*(F) Max. 100 220 100 220 100 Page 1 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_S-2WR2 & B_S-2WR2 series B1505S-2WR2 -- UL/CE/CB -- UL/CE/CB 5 400/40 74/78 15 133/13 78/82 24 83/8 78/82 A2403S-2WR2 3.3 303/30 76/80 A2405S-2WR2 5 200/20 76/80 A2409S-2WR2 9 111/11 82/86 A2412S-2WR2 12 83/8 80/84 A2415S-2WR2 15 67/7 80/84 A2424S-2WR2 24 42/4 80/84 3.3 400/40 75/79 B2405S-2WR2 5 400/40 76/80 B2409S-2WR2 9 222/22 82/86 B2412S-2WR2 12 167/17 80/84 B2415S-2WR2 15 133/13 82/86 B2424S-2WR2 24 83/8 82/86 B1515S-2WR2 B1524S-2WR2 B2403S-2WR2 15 (13.5-16.5) 24 (21.6-26.4) 220 100 220 Note: * The specified maximum capacitive load for positive and negative output is identical. Input Specifications Item Input Current (full load / no-load) Operating Conditions Min. Typ. Max. 5V input -- 506/35 --/60 9V input -- 268/25 --/50 12V input -- 208/20 --/50 15V input -- 167/15 --/35 24V input -- 104/10 --/30 -- 15 -- 5V input -0.7 -- 9 9V input -0.7 -- 12 12V input -0.7 -- 18 15V input -0.7 -- 21 24V input -0.7 -- 30 Reflected Ripple Current Surge Voltage (1sec. max.) Input Filter Unit mA mA VDC Capacitance filter Hot Plug Unavailable Output Specifications Item Operating Conditions Min. Voltage Accuracy Linear Regulation Load Regulation Typ. Max. Unit See output regulation curve(Fig. 1) Input voltage change: 1% 10%-100% load 3.3VDC output -- -- 1.5 Other output -- -- 1.2 3.3VDC output -- 18 -- 5VDC output -- 12 -- 9VDC output -- 9 -- 12VDC output -- 8 -- 15VDC output -- 7 -- 24VDC output -- 6 -- -- % Ripple & Noise* 20MHz bandwidth -- 75 200 mVp-p Temperature Coefficient Full load -- -- 0.03 %/ 2020.04.13-A/9 Page 2 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_S-2WR2 & B_S-2WR2 series A24xxS-2WR2/B24xxS-2WR2 A12xxS-2WR2/B12xxS-2WR2 A15xxS-2WR2/B15xxS-2WR2 A0524S-2WR2/B0524S-2WR2 Short-circuit Protection** -- -- 1 s Continuous, self-recovery Others Notes: * The "parallel cable" method is used for ripple and noise test, please refer to DC-DC Converter Application Notes for specific information. ** At the end of the short circuit duration, the supply voltage must be disconnected from following models: A24xxS-2WR2/B24xxS-2WR2/A12xxS-2WR2/B12xxS-2WR2/A15xxS-2WR2/B15xxS-2WR2 series, and A0524S-2WR2/B0524S-2WR2. General Specifications Item Operating Conditions Min. Typ. Max. Unit Isolation Voltage Input-output Electric strength test for 1 minute with a leakage current of 1mA max. 1500 -- -- VDC Insulation Resistance Input-output resistance at 500VDC 1000 -- -- M Isolation Capacitance Input-output capacitance at 100kHz/0.1V -- 20 -- pF Operating Temperature Derating when operating temperature up to 85, (see Fig. 2) -40 -- 105 Storage Temperature -55 -- 125 Case Temperature Rise Ta=25, nominal input, full load output -- 25 -- Pin Soldering Resistance Temperature Soldering spot is 1.5mm away from case for 10 seconds -- -- 300 Storage Humidity Non-condensing -- -- 95 %RH Switching Frequency Full load, nominal input voltage -- 100 -- kHz MTBF MIL-HDBK-217F @ 25 3500 -- -- k hours Mechanical Specifications Case Material Black plastic; flame-retardant and heat-resistant (UL94 V-0) Dimensions 19.65 x 7.05 x 10.16mm Weight 2.4g (Typ.) Cooling Method Free air convection Electromagnetic Compatibility (EMC) Emission Immunity CE CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit) RE CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit) ESD A_S-2WR2 IEC/EN61000-4-2 Contact 6kV performance Criteria B B_S-2WR2 IEC/EN61000-4-2 Contact 8kV performance Criteria B Typical Performance Curves 3.3VDC output Others Fig. 1 2020.04.13-A/9 Page 3 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_S-2WR2 & B_S-2WR2 series Output Power Percent(%) Temperature Derating Curve 120 100 80 60 Safe Operating Area 40 20 0 -40 0 40 85 105 120 Ambient Temp.( ) Fig. 2 Design Reference 1. Typical application Input and/or output ripple can be further reduced, by connecting a filter capacitor from the input and/or output terminals to ground as shown in Fig.3. Choosing suitable filter capacitor values is very important for a smooth operation of the modules, particularly to avoid start-up problems caused by capacitor values that are too high. For recommended input and output capacitor values refer to Table 1. Dual Output Vin GND Cin DC DC Cout Cout +Vo 0V Vin (VDC) Cin (F) Single Vo (VDC) Cout (F) Dual Vo (VDC) Cout (F) -Vo 5 4.7 3.3/5 10 3.3/5 4.7 9/12 2.2 9/12 2.2 9/12 1 15 2.2 15/24 1 15/24 0.47 24 1 -- -- -- -- Singl e Output +Vo Vin GND Cin DC DC Table 1: Recommended input and output capacitor values Cout 0V Fig.3 2020.04.13-A/9 Page 4 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_S-2WR2 & B_S-2WR2 series 2. EMC (CLASS B) compliance circuit LDM Vin C1 GND DC/DC C2 Input voltage (VDC) +Vo Vin GND 5/9/12/15 C1/C2 C3 LOAD -Vo (0V) EMI 24 4.7F /50V CY -- 1nF/2kV C3 Refer to Cout in Fig.3 LDM 6.8H Note: For 24V input models use a Y-capacitor CY of 1nF/2kV. Fig. 4 CY 3. Minimum Output Load Requirement For a reliable and efficient operation of the converter, the minimum load should never be less than 10% of the rated output load. If the total required output power is below 10%, a parallel bleeding resistor is required on the output, ensuring that the sum of the power consumption is always maintained at 10% minimum. 4. For additional information, please refer to DC-DC converter application notes on www.mornsun-power.com Dimensions and Recommended Layout 2020.04.13-A/9 Page 5 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_S-2WR2 & B_S-2WR2 series Notes: 1. 2. 3. 4. 5. 6. 7. 8. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com. Packing bag number: 58200001; If the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all parameters in the datasheet; The maximum capacitive load offered were tested at input voltage range and full load; Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25, humidity<75%RH with nominal input voltage and rated output load; All index testing methods in this datasheet are based on our Company corporate standards; We can provide product customization service, please contact our technicians directly for specific information; Products are related to laws and regulations: see "Features" and "EMC"; Our products shall be classified according to ISO14001 and related environmental laws and regulations, and shall be handled by qualified units. MORNSUN Guangzhou 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: 86-20-38601850-8801 Fax: 86-20-38601272 E-mail: info@mornsun.cn 2020.04.13-A/9 Page 6 of 6 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation