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| A_(X)T-W2 Series 0.25W,FIXED INPUT, ISOLATED & UNREGULATED DUAL OUTPUT, SMD DC-DC CONVERTER multi-country patent protection RoHS FEATURES Small footprint SMD Package Style No Heat sink Required 1KVDC Isolation Temperature Range: -40C to +85C Internal SMD construction No External Component Required Industry Standard Pinout RoHS Compliance PRODUCT PROGRAM Input Part Number A0503(X)T-W2 A0505(X)T-W2 A0509(X)T-W2 A0512(X)T-W2 A0515(X)T-W2 A1205(X)T-W2 A1209(X)T-W2 12 10.8-13.2 5 4.5-5.5 Voltage (VDC) Nominal Range Voltage (VDC) 3.3 5 9 12 15 5 9 12 15 5 24 21.6-26.4 9 12 15 Output Current (mA) Max 38 25 14 11 9 25 14 11 9 25 14 11 9 Min 4 3 2 2 1 3 2 2 1 3 2 2 1 62 64 65 67 66 65 64 63 64 61 62 63 65 Efficiency (%, Typ.) APPLICATIONS The A_(X)T-W2 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. A1212(X)T-W2 A1215(X)T-W2 A2405(X)T-W2 A2409(X)T-W2 A2412(X)T-W2 A2415(X)T-W2 Note: The A_XT-W2 series have no 3,6,8,9 pin. For example A0505XT-W2. ISOLATION SPECIFICATIONS Item Isolation voltage Isolation resistance Test Conditions Tested for 1 minute and 1mA max Test at 500VDC Min 1000 1000 Typ. Max Units VDC M OUTPUT SPECIFICATIONS Item Test Conditions Min Typ. Max 0.25 For Vin change of 1%(3.3V output) For Vin change of 1%(Others output) 10% to 100% load (3.3V output) 10% to 100% load (5V output) Load regulation 10% to 100% load (9V output) 10% to 100% load (12V output) 10% to 100% load (15V output) Output voltage accuracy 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 Units W MODEL SELECTION Output power Line regulation A0505(X)T-W2 Rated Power Package Style Output Voltage Input Voltage Product Series 1.5 1.2 15 12.8 8.3 6.8 6.3 20 15 15 15 15 % See tolerance envelope graph 100% full load 20MHz Bandwidth Full load, nominal input(24V input) Full load, nominal input (others input) 50 500 110 0.03 100 %/C mVp-p KHz Temperature drift Output ripple &Noise* Switching frequency *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 COMMON SPECIFICATION Item Storage humidity Operating temperature Storage temperature Temp. rise at full load Lead temperature Cooling Case material Short circuit protection* MTBF Weight *Supply voltage must be discontinued at the end of short circuit duration. 3500 1.70 1.5mm from case for 10 seconds -40 -55 15 Test Conditions Min Typ. Max 95 85 125 25 260 Free air convection Plastic(UL94-V0) 1 s K hours g C Units % APPLICATION NOTE 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 operated under no load! If the actual output power is very sm all, please connect a resistor with proper resistance at the output end in parallel to increase the load. 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). L L TYPICAL CHARACTERISTICS Vin C +Vo C DC DC 0V -Vo GND L C (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) arise. It's not recommended to connect any external capacitor in the application field. Output Voltage Regulation and Over-voltage Protection Circuit 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 (Figure2). RECOMMENDED REFLOW SOLDERING PROFILE 250 Temperature ( o C) 200 150 100 50 0 Time ( s ec . ) 90 Sec Max (>220 o C ) 260 o C 1 0 S ec M ax 22 0 C o Vin GND +Vo RE G DC DC 0V -Vo OUTLINE DIMENSIONS & FOOTPRINT DETAILS 4.25 (0.167) First Angle Projection REC OMME NDE D FOO TP RINT To p view,gr id :2.5 4m m(0 .1 inch) Vin GND RE G +Vo 0V DC DC RE G 6.50 (0.250) 6.25 (0.240) -Vo 2.54 (0.100) 0.25 (0 .010) A_T-W2 10 9 8 7 6 A_XT-W2 10 12 7 45 (Figure2) Overload Protection Under normal operating conditions, the output circuit of these products has no protection against 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. 15 .24 (0.600) 10.1 6 (0 .400) (0.441) 7.50 ( 0.295) 11.20 1.8 12345 1.2 (0.047) 2 .54 0.10 (0.1 00 0.004 ) 6 .76 (0.26 6) 0.60 0.05 (0 .0 24 0.00 2) A 1.85 (0.07 3) 7 .15 (0.28 0) 0.25 (0.010) 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) 0 .50 (0.02 0) 1.35 (0 .0 53) 5 .00 Note: 1. All specifications measured at Ta=25C, 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. 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 2 of 2 |
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