A_(X)T-W2 Series 0.25W,FIXED INPUT, ISOLATED & UNREGULATED DUAL OUTPUT, SMD DC-DC CONVERTER multi-country patent protection RoHS FEATURES PRODUCT PROGRAM Small footprint SMD Package Style No Heat sink Required 1KVDC Isolation Temperature Range: -40°C to +85°C Internal SMD construction No External Component Required Industry Standard Pinout RoHS Compliance Input Part Number Output Voltage (VDC) Nominal Range Voltage (VDC) Current (mA) Max Efficiency (%, Typ.) Min A0503(X)T-W2 ±3.3 ±38 ±4 62 A0505(X)T-W2 ±5 ±25 ±3 64 ±9 ±14 ±2 65 A0512(X)T-W2 ±12 ±11 ±2 67 A0515(X)T-W2 ±15 ±9 ±1 66 A1205(X)T-W2 ±5 ±25 ±3 65 5 A0509(X)T-W2 4.5-5.5 ±9 ±14 ±2 64 A1212(X)T-W2 ±12 ±11 ±2 63 The A_(X)T-W2 Series are specially designed A1215(X)T-W2 ±15 ±9 ±1 64 for applications where a group of polar power A2405(X)T-W2 ±5 ±25 ±3 61 supplies are isolated from the input power supply A2409(X)T-W2 ±9 ±14 ±2 62 in a distributed power supply system on a circuit A2412(X)T-W2 ±12 ±11 ±2 63 A2415(X)T-W2 ±15 ±9 ±1 65 A1209(X)T-W2 APPLICATIONS board. These products apply to: 1) Where the voltage of the input power supply is 12 24 10.8-13.2 21.6-26.4 Note: The A_XT-W2 series have no 3,6,8,9 pin. For example A0505XT-W2. 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 ISOLATION SPECIFICATIONS Item Test Conditions Isolation voltage Tested for 1 minute and 1mA max 1000 Min Typ. Max Units VDC Isolation resistance Test at 500VDC 1000 MΩ frequency analog circuits, and IGBT power device driving circuits. OUTPUT SPECIFICATIONS Item MODEL SELECTION A0505(X)T-W2 Line regulation Rated Power Package Style Output Voltage Input Voltage Product Series Test Conditions Min Load regulation Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com W 15 20 10% to 100% load (5V output) 12.8 15 10% to 100% load (9V output) 8.3 15 10% to 100% load (12V output) 6.8 15 10% to 100% load (15V output) 6.3 15 % See tolerance envelope graph Temperature drift 100% full load Output ripple &Noise* 20MHz Bandwidth 50 Full load, nominal input(24V input) 500 Full load, nominal input (others input) 110 Switching frequency Units ±1.2 For Vin change of 1%(Others output) 10% to 100% load (3.3V output) Max 0.25 ±1.5 For Vin change of 1%(3.3V output) Output voltage accuracy MORNSUN Science & Technology co.,Ltd. Typ. Output power 0.03 %/°C 100 mVp-p KHz *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. A_(X)T-W2 A/1-2008 Page 1 of 2 APPLICATION NOTE COMMON SPECIFICATION Item Test Conditions Min Typ. Max Units 95 % Storage humidity Operating temperature -40 85 Storage temperature -55 125 Temp. rise at full load 15 Lead temperature and reliably, During operation, the minimum output °C 25 1.5mm from case for 10 seconds this product should never be operated under please connect a resistor with proper resistance at Free air convection Case material load is not less than 10% of the full load, and that no load! If the actual output power is very sm all, 260 Cooling Requirement on output load To ensure this module can operate efficiently the output end in parallel to increase the load. Plastic(UL94-V0) Short circuit protection* 1 MTBF 3500 Weight s Recommended circuit If you want to further decrease the input/output K hours ripple, an “LC” filtering network may be connected g to the input and output ends of the DC/DC 1.70 converter, see (Figure 1). *Supply voltage must be discontinued at the end of short circuit duration. L L +Vo Vin TYPICAL CHARACTERISTICS C DC DC C L GND C 0V -Vo (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 Operating Temp.(oC) Temperature ( o C) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage 260 o C 250 1 0 S ec M ax o 22 0 C 200 regulation, 150 100 Vin Time ( s ec . ) 6.50 (0.250) 6.25 (0.240) 4.25 (0.167) A_T-W2 10 9 8 7 6 6 .76 (0.26 6) A 1.85 (0.07 3) 7 .15 (0.28 0) 0.25 (0.010) 0 .50 (0.02 0) 1.35 (0 .0 53) 1 2 3 4 5 5 .00 。 GND 1 2 RE G +Vo RE G -Vo 0V DC DC (Figure2) A_XT-W2 10 -Vo Vin 7 Overload Protection Under normal operating conditions, the output 4 5 circuit of these products has no protection against 1.2 (0.047) 7.50 ( 0.295) 11.20 (0.441) 1.8 0V DC GND First Angle Projection 0.25 (0 .010) +Vo RE G DC REC OMME NDE D FOO TP RINT To p view,gr id :2.5 4m m(0 .1 inch) 0.60 0.05 (0 .0 24 0.00 2) over-current or output end in series (Figure2). OUTLINE DIMENSIONS & FOOTPRINT DETAILS 2 .54 0.10 (0.1 00 0.004 ) and overheat protection that is connected to the input 50 15 .24 (0.600) 10.1 6 (0 .400) over-voltage protection is a linear voltage regulator with 90 Sec Max (>220 o C ) 0 2.54 (0.100) arise. It’s not recommended to connect any external capacitor in the application field. RECOMMENDED REFLOW SOLDERING PROFILE FOO TPRINT DE TAIL S P in Functio n(T) Fun ction (X T) 1 GND G ND 2 Vin Vin 4 0V 0V 5 -Vo -Vo 7 +Vo + Vo 10 NC NC 3, 6, 8, 9 NC NO P IN NC:No Con nection Note : Unit:mm (inch) P in section:0.60 *0 .2 5m m(0 .024*0 .010 inch) P in section tolerances: 0.10mm( 0 .004inch) G eneral tole ran ces: 0.1 5m m( 0.00 6in ch) The copyright and authority for the interpretation of the products are reserved by Mornsun over-current and short-circuits. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. No parallel connection or plug and play. Note: 1. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. Only typical models listed, specifications of custom product may be different. Please contact our service people directly for certain conditions. 3. Operation under minimum load will not damage the converter; However, they may not meet all specification listed. Specifications subject to change without notice. A_(X)T-W2 A/1-2008 Page 2 of 2