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D050505M-1W 데이터시트(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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D050505M-1W 데이터시트(HTML) 2 Page - MORNSUN Science& Technology Ltd. |
2 / 3 page The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. D_M-1W A/0-2009 Page 2 of 2 OUTPUT SPECIFICATIONS TYPICAL CHARACTERISTICS Item Test Conditions Min. Typ. Max. Units Output power 0.1 1 W Line regulation For Vin change of 1% ±1.5 10% to 100% load (3.3V output) 15 20 Load regulation 10% to 100% load(5V output) 12.8 15 % Output voltage accuracy See tolerance envelope graph Temperature drift 100% full load ±0.03 %/℃ Ripple & Noise* 20MHz Bandwidth 75 100 mVp-p Switching frequency Full load, nominal input 130 KHz *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. Operating Temp.( C) o APPLICATION NOTE RECOMMENDED CIRCUIT 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 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. 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). 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 arise. For every channel of output, provided the safe and reliable operation is ensured, the recommended capacitance of its filter capacitor sees (Table 1). 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 (Figure 2). Overload Protection Under normal operating conditions, the output circuit of these products has no protection against overload. 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 Vin GND +Vo1 0V1 DC C L DC C +Vo2 0V2 L C L (Figure 1) Vin GND REG Vin GND REG +Vo1 0V1 +Vo1 0V1 DC DC DC DC +Vo2 0V2 REG +Vo2 0V2 (Figure 2) EXTERNAL CAPACITOR TABLE (TABLE 1) Vin(VDC) Cin(uF) Cout(uF) Vout(VDC) 3.3/5 4.7 3.3/5 4.7 It ’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. |
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