MA-XD-1W&MA-XD-2W Series 1W/2W, FIXED INPUT , ISOLA TED & REGULATED DUAL OUTPUT DC-DC CONVERTER SELECTION GUIDE Input FEATURES ◆Low ripple Output Voltage(VDC) Order code Current(mA) Efficiency1 (%,Typ) Nominal Range Voltage (VDC) Max. Min. MA0512XD-1W 5 4. 75-5.25 ±12 ±42 ±5 64 MA0515XD-1W 5 4. 75-5.25 ±15 ±33 ±4 65 MA0509XD-2W 5 4. 75-5.25 ±9 ±100 ±10 62 MA0512XD-2W 5 4. 75-5.25 ±12 ±83 ±9 63 ◆Good dynamic feature MA0515XD-2W 5 4. 75-5.25 ±15 ±67 ±7 64 ◆1KVDCIsolation MA1212XD-1W 12 11. 4-12.6 ±12 ±42 ±5 64 MA1215XD-1W 12 11. 4-12.6 ±15 ±33 ±4 65 MA1209XD-2W 12 11. 4-12.6 ±9 ±100 ±10 63 ◆Temperature Range:-40℃ ~ +85 ℃ MA1212XD-2W 12 11. 4-12.6 ±12 ±83 ±9 65 ◆UL94-V0 Package MA1215XD-2W 12 11. 4-12.6 ±15 ±67 ±7 66 MA2412XD-1W 24 22. 8-25.2 ±12 ±42 ±5 64 ◆DIP24 Package ◆No Heatsink Required MA2415XD-1W 24 22. 8-25.2 ±15 ±33 ±4 65 ◆No External Component Required MA2409XD-2W 24 22. 8-25.2 ±9 ±100 ±10 63 ◆Internal SMD construction MA2412XD-2W 24 22. 8-25.2 ±12 ±83 ±9 66 ◆RoHS Compliance MA2415XD-2W 24 22. 8-25.2 ±15 ±67 ±7 67 MODEL SELECTION ① ② ③ ④ ⑤ ⑥ ① ② ③ ④ ⑤ ⑥ MA 05 12 -X D -2W(83) ①Product Series ②Input Voltage ③Output Voltage ④Fixed Input ⑤DIP24 Package Style ⑥Rated Power(Output current) ISOLATION SPECIFICATIONS Parameter Test conditions Min. Typ. Max. Units Storage humidity Tested for 1 minute and 1mA max 1000 VDC Isolation resistance Test at 500VDC 1000 MΩ APPLICATIONS The MA_XD-1W & MA_XD-2W Series are specially designed for applications where a group of polar power supplies are isolated from the input power COMMON SPECIFICATIONS Parameter Line regulation supply in a distributed power supply system on a Test conditions Min Typ. For Vin change of ±5%(1W&2W) Max. Units ±0.25 % 10% to 100% full load ±1 % circuit board. Output voltage accuracy 100% full load ±3 % These products apply to: Temperature drift2 100% full load 0.03 %/℃ 1) Output ripple* Where the voltage of the input power supply is fixed 20MHz Bandwidth(1W) 10 20 mVp-p 20MHz Bandwidth(2W) 20 40 mVp-p Output Noise* 20MHz Bandwidth(1W&2W) 50 150 mVp-p Switching frequency Full load, nominal 75 (voltage variation≤±5%); 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 demanded. input Converter section, application notes. Note: 1. All specifications measured at TA=25℃, humidity<75%, nominal input voltage and rated output load otherwise specified. 2. See below recommended circuits for more details. MICRODC reserves the copyright http://www.microdc.cn KHz *Test ripple and noise by “ parallel cable ” met hod.See detailed operation instructions at Testing of Power Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 2 unless MA-XD-1W&MA-XD-2W Series COMMON SPECIFICATION Parameter Recommended circuit Test conditions Min. Typ. Storage humidity Units 95 % filtering network may be connected to the input and output ends of the DC/ DC converter , see (Figure 1). Operating temperature -40 85 ℃ Storage temperature -55 125 ℃ Temp. rise at full load Lead temperature 20 1. 5mm from case for 10 seconds Short circuit protection* Cooling If you want to further decrease the input /output ripple, an “LC” Max 30 ℃ 300 ℃ 1 s Free air convection Case material Plastic(UL94-V0) MTBF 3500 Weight K hours 11 g *Supply voltage must be discontinued at the end of short circuit duration. 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 out put TYPICAL CHARACTERISTICS filter capacitor must be proper .If the capacitance is too big, a startup problem might arise. For every channel of out put , provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). It’s not recommended to connect any external capacitor in the TYPICAL CHARACTERISTICS application field with less than 0.5 watt output. 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. Input Over-voltage Protection Circuit The simplest device for input over-voltage protection is a linear voltage regulator with overheat protection that is connected to the input end in series (Figure 2). C, the When the environment temperature is higher than 71 71°C, APPLICATION NOTE product output power should be less then 60% of the rated power. Requirement on output load No parallel connection or plug and play. To ensure this module can operate efficiently and reliably , During operation, the minimum output load is not less than 10% of the full load load, and that this product should never be operated under no load! If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company’s products with a lower rated output power. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 2