FEATURES ●Ultra-Miniature SMD package ●1500VDC isolation ●Operating temperature range: -40℃~+105℃ ●Efficiency up to 82% ●Internal SMD construction ● No external component required ● Industry standard pinout A_XT-1WR2 Series 1W，FIXED INPUT, ISOLATED & UNREGULATED DUAL OUTPUT APPLICATIONS The A_XT-1WR2 Series are designed for application where isolated output is required from a distributed power system. These products apply to where: Patent Protected RoHS PART NUMBER SYSTEM A0505XT-1WR2 1) Rated Power P ackag e Outp ut Voltage Input Volta ge Product Series Input voltage rang :±10%Vin; 2) 1500VDC input and output isolation; 3) Regulated and low ripple noise is not required, Such as: digital circuit, low frequency analog circuit, and relay drive circuit. SELECTION GUIDE Input Voltage(VDC) Model Nominal (Range) Output Voltage (VDC) Output Current (mA) Input Current (mA,Typ.) Max. Min. @Max. Load ±5 ±100 ±10 388 ±12 ±42 ±5 379 A0315XT-1WR2 ±15 ±33 ±3 A0505XT-1WR2 ±5 ±100 ±9 @No Load Efficiency (% ) @Max. Load Reflected Max. Ripple Capacitive Current Load (µF) (mA,Typ.) Min. Typ. 74 78 76 80 379 76 80 ±10 250 76 80 ±56 ±6 250 76 80 ±12 ±42 ±5 247 77 81 A0515XT-1WR2 ±15 ±33 ±3 247 77 81 A0524XT-1WR2 ±24 ±21 ±2 247 77 81 A1205XT-1WR2 ±5 ±100 ±10 104 A1209XT-1WR2 ±9 ±56 ±6 104 A0305XT-1WR2 A0312XT-1WR2 3.3 (2.97-3.63) A0509XT-1WR2 A0512XT-1WR2 5 (4.5-5.5) 12 (10.8-13.2) 25 20 15 100 76 80 76 80 ±12 ±42 ±5 103 77 81 A1215XT-1WR2 ±15 ±33 ±3 103 77 81 A1224XT-1WR2 ±24 ±21 ±2 103 77 81 A2405XT-1WR2 ±5 ±100 ±10 51 78 82 ±9 ±56 ±6 51 78 82 A1212XT-1WR2 A2409XT-1WR2 24 (21.6-26.4) 15 ±12 ±42 ±5 51 78 82 A2415XT-1WR2 ±15 ±33 ±3 51 78 82 A2424XT-1WR2 ±24 ±21 ±2 51 78 82 A2412XT-1WR2 7 INPUT SPECIFICATIONS Item Input Surge Voltage (1 sec. max.) Test Conditions Min. Typ. Max. 3.3VDC Input -0.7 -- 5 5VDC Input -0.7 -- 9 12VDC Input -0.7 -- 18 24VDC Input -0.7 -- Input Filter The copyright and authority for the interpretation of the products are reserved by MORNSUN Unit VDC 30 Capacitor A_XT-1WR2 2013.12.17-A/0 Page 1 of 5 OUTPUT SPECIFICATIONS Item Test Conditions Min. Typ. Output Voltage Accuracy Max. Unit See tolerance envelope curve For Vin change of ±1% Line Regulation Load Regulation 10% to 100% load -- -- ±1.2 5VDC output -- 12 -- 9VDC output -- 8 -- 12VDC output -- 7 -- 15VDC output -- 6 -- 24VDC output % % -- 5 -- Temperature coefficient 100% load -- -- ±0.03 %/°C Ripple & Noise* 20MHz Bandwidth -- 60 -- mVp-p Short Circuit Protection Continuous, automatic recovery Note:* Ripple and noise tested with “parallel cable” method. See detailed operation instructions at DC-DC Application Notes. COMMON SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit Isolation Voltage Input-Output, tested for 1 minute and leakage current less than 1 mA 1500 -- -- VDC Isolation Resistance Input-Output, test at 500VDC 1000 -- -- MΩ Isolation Capacitance Input-Output,,100KHz/0.1V -- 20 -- pF Switching Frequency Full load, nominal input -- 100 300 KHz MTBF MIL-HDFK-217F@25℃ 3500 -- -- K hours Case Material Epoxy Resin (UL94-V0) Weight -- 1.8 -- g ENVIRONMENTAL SPECIFICATIONS Item Test Conditions Min. Typ. Max. Unit Storage Humidity Non condensing -- -- 95 % Operating Temperature Power derating (≥100℃, see Figure 2) Storage Temperature -40 -- 105 -55 -- 125 25 -- -- 300 Case Temperature rise Ta=25°C -- Lead Temperature 1.5mm from case for 10 seconds -- Cooling °C Free air convection EMC SPECIFICATIONS CE CISPR22/EN55022 CLASS B(Recommended Circuit Refer to Figure1) RE CISPR22/EN55022 CLASS B(Recommended Circuit Refer to Figure1) ESD IEC/EN61000-4-2 Contact EMI EMS ±6KV perf. Criteria B EMC RECOMMENDED CIRCUIT EMI Typical Recommended Circuit（CLASS B）： Recommended typical circuit parameters : LDM Vin Vin +Vo Vin(V) C0 GND EUT LOAD EMI GND -Vo 3.3/5/12/24 C0 4.7µF /50V LDM 6.8µH (Figure1) The copyright and authority for the interpretation of the products are reserved by MORNSUN A_XT-1WR2 2013.12.17-A/0 Page 2 of 5 EMI TEST WAVEFORM (RECOMMENDED CIRCUIT FINGURE 1) A0505XT-1WR2 CE(Class B , Negative line) A0505XT-1WR2 CE(Class B, Positive line) A1205XT-1WR2 CE(Class B, Positive line) A1205XT-1WR2 CE(Class B , Negative line) PRODUCT TYPICAL CURVE Tolerance Envel ope Curve Te mp erat ure D era ting G rap h T yp ic al Lo a d L in e +2.5% -2.5 % Output Voltage Accuracy (%) +5% Ra ted Output Voltage Output Power Percent(%) +10% -7.5 % 50 70 120 100 100 80 60 Safe Operating Area 40 20 0 -40 Output Current Percent(%) 图2 (Nominal Input Voltage) Efficiency VS Input Voltage curve (Full Load) Efficiency VS Output Load curve (Vin=Vin-nominal) A0505XT-1WR2 A0505XT-1WR2 90 85 80 100 90 80 70 60 50 40 30 20 10 0 Efficiency(%) Efficiency(%) 100 95 75 70 65 60 55 50 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5 10 20 Input Voltage(V) Efficiency VS Input Voltage curve (Full Load) A1205XT-1WR2 Efficiency(%) 90 85 80 75 70 65 60 55 50 30 40 50 60 70 80 Total Output Current (%) 90 100 Efficiency VS Output Load curve (Vin=Vin-nominal) A1205XT-1WR2 100 95 Efficiency(%) 0 40 80 100 105 Ambient Temp.(℃ ) 100 90 80 70 60 50 40 30 20 10 0 10.8 11.1 11.4 11.7 12 12.3 12.6 12.9 13.2 13.5 Input Voltage(V) The copyright and authority for the interpretation of the products are reserved by MORNSUN 10 20 30 40 50 60 70 80 Total Output Current (%) A_XT-1WR2 90 100 2013.12.17-A/0 Page 3 of 5 Recommended reflow soldering profile refer to IPC/JEDEC J-STD-020D standard, our products recommended reflow soldering profile as follow: 250 245 Peak.Temp 245℃(Max.) 217 Temperature (℃) 200 60 Sec Max (>217℃ ) 150 100 50 0 Ti me (sec.) Note: The curve only applies to the hot air reflow soldering DIMENSIONS, RECOMMENDED FOOTPRINT & PACKAGING TEST CONFIGURATIONS Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate the source impedance . Oscilloscope Lin Cin Lin(4.7µH) Current Probe DC DC Load Cin(220µF, ESR < 1.0Ω at 100 KHz) The copyright and authority for the interpretation of the products are reserved by MORNSUN A_XT-1WR2 2013.12.17-A/0 Page 4 of 5 DESIGN CONSIDERATIONS 1) Requirement for output load To ensure this module operate efficiently and reliably, the minimum output load could not be less than 10% of the full load. If the actual output power is very small, please connect a resistor to the output in parallel to increase the load, or use our company’s products with a lower rated output power . 2) Overload Protection Under normal operating conditions, the output circuit of these products have not overload protection. The simplest method is to add a breaker circuit in the circuit. 3) Recommended circuit If you want to further decrease the input/output ripple, an capacitor filtering network may be connected to the input and output ends of the DC/DC converter, refer to Figure 3. It should also be noted that the capacitance of the capacitor must be proper. If the capacitance is too large, a startup problem might arise.For ensuring every channel of output can provide a safe and reliable operation , the recommended capacitance of the capacitor refer to Table 1. +Vo Vin Cout DC DC Cin 0V Cout GND -Vo (Figure 3) EXTERNAL CAPACITOR TABLE (Table 1) Vin Cin Dual Cout (VDC) (µF) Vout (µF) (VDC) 3.3 4.7 ±5 4.7 5 12 24 4.7 2.2 1 ±9 ±12 ±15 2.2 1 1 --±24 0.47 It’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. 4) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear regulator with overheat protection which is connected to the input or output in series (Figure 4)and an capacitor filtering network.the recommended capacitance of the capacitor refer to Table 1, linear regulator based on the actual voltage and current to make a reasonable selection. Vin REG REG 0V DC DC GND +Vo REG -Vo (Figure 4) 5) It is not recommended to increase the output power capability by connecting two or more converters in parallel. The product is not hot-swappable Note: 1. Operation under minimum load will not damage the converter; However, they may not meet all specifications. 2. Max. Capacitive Load is tested at nominal input voltage and full load. 3. Unless otherwise noted, All specifications are measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load. 4. In this datasheet, all test methods are based on our corporate standards. 5. All characteristics are for listed models, and non-standard models may perform differently. Please contact our technical support for more detail. 6. Please contact our technical support for any specific requirement. 7. Specifications of this product are subject to changes without prior notice. MORNSUN 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 Fax:86-20-38601272 E-mail: [email protected] Http://www.mornsun-power.com The copyright and authority for the interpretation of the products are reserved by MORNSUN A_XT-1WR2 2013.12.17-A/0 Page 5 of 5