DC/DC Converter A_XT-1WR2 Series FEATURES 1W, Fixed input voltage, isolated & unregulated dual output Operating temperature range: -40 to +105 High efficiency up to 82% Compact SMD package Isolation voltage: 1.5K VDC Internal surface mounted design No external component required International standard pin-out EN60950 approval Patent Protection RoHS A_XT-1WR2 series are specially designed for applications where an isolated voltage is required in a distributed power supply system. They are suitable for 1. Where the voltage of the input power supply is stable (voltage variation: 10%Vin); 2. Where isolation between input and output is necessary (isolation voltage 1500VDC); 3. Where the output voltage regulation is not strictly required; 4. Typical application: preceding-stage interference isolation condition; ground-interference canceled condition; digit circuit condition; Voltage-isolation converting condition; normal low-frequency artificial circuit condition; relay drive circuit condition, etc. Selection Guide Output Input Voltage (VDC) Part No. Certification A0305XT-1WR2 A0312XT-1WR2 A0315XT-1WR2 Max. Capacitive Load @ Full Load (F) Nominal Output Voltage (Range) (VDC) Output Current (mA)(Max./Min.) 3.3 (2.97-3.63) 5 100/10 72/76 12 42/5 73/77 15 33/3 74/78 5 100/10 76/80 9 56/6 76/80 12 42/5 75/79 15 33/3 77/81 A0505XT-1WR2 A0509XT-1WR2 5 (4.5-5.5) A0512XT-1WR2 A0515XT-1WR2 CE Efficiency (%,Min./Typ.) A0524XT-1WR2 24 21/2 77/81 A1205XT-1WR2 5 100/10 76/80 A1209XT-1WR2 A1212XT-1WR2 A1215XT-1WR2 12 (10.8-13.2) A1224XT-1WR2 A1515XT-1WR2 15 (13.5-16.5) A2405XT-1WR2 A2409XT-1WR2 A2412XT-1WR2 A2415XT-1WR2 24 (21.6-26.4) A2424XT-1WR2 9 56/6 76/80 12 42/5 77/81 15 33/3 77/81 24 21/2 77/81 15 33/3 77/81 5 100/10 76/80 9 56/6 76/80 12 42/5 77/81 15 33/3 78/82 24 21/2 74/80 100 Note: *The capacitive loads of positive and negative outputs are identical. Input Specifications Item Input Current (full load / no-load) Operating Conditions Min. Typ. Max. 3.3V input -- 389/25 --/70 5V input -- 250/20 --/60 12V input -- 104/15 --/50 15V input -- 83/12 --/35 24V input -- 52/10 --30 2016.05.04-A/3 Unit mA Page 1 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_XT-1WR2 Series Reflected Ripple Current Surge Voltage (1sec. max.) -- 15 -- 3.3V input -0.7 -- 5 5V input -0.7 -- 9 12V input -0.7 -- 18 15V input -0.7 -- 21 24V input -0.7 -- 30 Input Filter mA VDC Filter capacitor Hot Plug Unavailable Output Specifications Item Operating Conditions Min. Output Voltage Accuracy Line Regulation Load Regulation Typ. Max. Unit See tolerance envelope curve(Fig. 1) Input voltage change: 1% 10%-100% load -- -- 1.2 5VDC output -- 12 -- 9VDC output -- 9 -- 12VDC output -- 8 -- 15VDC output -- 7 -- 24VDC output -- % -- 6 -- Ripple & Noise* 20MHz bandwidth -- 60 150 mVp-p Temperature Coefficient Full load -- -- 0.03 %/ A03xxXT-1WR2/A24xxXT-1WR2/A0524XT-1WR2 -- -- 1 s Short Circuit Protection** Others Continuous, self-recovery Note: *Ripple and noise are measured by "parallel cable" method, please see DC-DC Converter Application Notes for specific operation; **Supply voltage must be discontinued at the end of short circuit duration for A03xxXT-1WR2 series, A0524XT-1WR2 model and A24xxXT-1WR2 series. General Specifications Item Operating Conditions Isolation Voltage Input-output, with the test time of 1 minute and the leak current lower than 1mA Min. 1500 Isolation Resistance Input-output, isolation voltage 500VDC Isolation Capacitance Input-output, 100KHz/0.1V Operating Temperature Derating when operating temperature up to 100, (see Fig. 2) Storage Temperature Typ. Max. -- -- VDC 1000 -- -- M -- 20 -- pF -40 -- 105 -55 -- 125 Casing Temperature Rise Ta=25, nominal input, full load output -- 25 -- Pin Welding Resistance Temperature Welding spot is 1.5mm away from the casing, 10 seconds -- -- 300 Storage Humidity Non-condensing -- -- 95 Full load, nominal input voltage MTBF MIL-HDBK-217F@25 %RH Peak temp.245, maximum duration time60s at 217. For actual application, please refer to IPC/JEDEC J-STD-020D.1. -100 -KHz Reflow Soldering Temperature Switching Frequency Unit 3500 -- -- K hours Physical Specifications Casing Material Epoxy resin (UL94 V-0) Dimensions 15.24*11.20*7.25 mm Weight 2.0g (Typ.) Cooling Method Free air convection 2016.05.04-A/3 Page 2 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_XT-1WR2 Series EMC Specifications EMI EMS CE CISPR22/EN55022 CLASS B (see Fig. 5 for recommended circuit) RE CISPR22/EN55022 CLASS B (see Fig. 5 for recommended circuit) ESD IEC/EN61000-4-2 Contact 6KV perf. Criteria B Product Characteristic Curve Tolerance Envelope Cur ve Temperature Derating Cur ve +10% Max . +5% Ty p . 0 +2.5% M in. -5% -2.5% -7.5% -10% 10% 20% Output P ower Percent(%) Output Voltage Accuracy +15% 40% 60% 80% 100% Output Current Percent (Nominal Input Voltage) 120 100 80 60 Safe Ope rating Area 40 20 0 -40 Fig. 1 40 71 100 105 0 Ambient Temp.( ) Fig. 2 Design Reference 1. Typical application circuit If it is required to further reduce input and output ripple, a filter capacitor may be connected to the input and output terminals, see Fig.3. Moreover, choosing a suitable filter capacitor is very important, start-up problems may be caused if the capacitance is too large. Under the condition of safe and reliable operation, the recommended capacitive load values are shown in Table 1. 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 (see Fig. 4). Vin GND Cin DC DC Fig.3 Cout Cout +Vo 0V -Vo Vin GND REG REG +Vo REG -Vo DC DC 0V Fig.4 2016.05.04-A/3 Page 3 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_XT-1WR2 Series Recommended capacitive load value table (Table 1) Vin(VDC) Cin(F) Vo (VDC) Cout(F) 3.3 4.7 5 4.7 5 4.7 9 2.2 12 2.2 12 1 15 2.2 15 1 24 1 24 0.47 2. EMC solution-recommended circuit Input voltage (VDC) LDM Vin Vin C1 GND +Vo DC/DC GND C2 LOAD -Vo CY Fig. 5 EMI 3.3/5/12 15/24 C1 4.7F /50V C2 Refer to the Cout in Fig.3 LDM CY 6.8H -- 1nF /2KV Note: 1. 15/24V input series, 24V output series is subject to CY (CY : 1nF/2KV). 2. It is not needed to add the component in the peripheral circuit when parameter with the symbol of "--". 3. Output load requirements In order to ensure the converter can work reliably with high efficiency, the minimum load should not less than 10% rated load when it is used. If the needed power is indeed small, please parallel a resistor on t the output side ( The sum of the efficient power and resistor consumption power is not less than 10%). 4. For more information please find DC-DC converter application notes on www.mornsun-power.com Dimensions and Recommended Layout 2016.05.04-A/3 Page 4 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter A_XT-1WR2 Series Notes: 1. 2. 3. 4. 5. 6. 7. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com. Packing bag number: 58210023; 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's corporate standards; We can provide product customization service, please contact our technicians directly for specific information; Specifications are subject to change without prior notice. 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 2016.05.04-A/3 Page 5 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation