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D050909D-1W Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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D050909D-1W Datasheet(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_(N)S-1W&D_(N)D-1W A/4-2012 Page 2 of 3 ISOLATION SPECIFICATIONS TYPICAL CHARACTERISTICS Item Test conditions Min. Typ. Max. Units Tested for 1 minute and 1mA max(Vin/Vout) 1000 Isolation voltage Tested for 1 minute and 1mA max(Vo1/Vo2) 1000 VDC Test at 500VDC (Vin/Vout) 1000 Isolation resistance Test at 500VDC (Vo1/Vo2) 1000 M Ω (Vin/Vout) 130 Isolation capacitance (Vo1/Vo2) 130 pF OUTPUT SPECIFICATIONS Item Test conditions Min. Typ. Max. Units Output power 0.1 1 W Line regulation For Vin change of ±1% ±1.2 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 Load regulation 10% to 100% load (15V output) 6.3 15 % Output voltage accuracy See tolerance envelope graph Temperature drift 100% full load ±0.03 %/ °C Ripple & Noise* 20MHz Bandwidth 50 75 mVp-p Switching frequency Full load, nominal input 100 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 1) Requirement on output load To ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load (namely full load). During operation, make sure the specified range of input voltage is not exceeded, 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 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. 2) Recommended testing and application 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 greatest capacitance of its filter capacitor sees (Table 1). 3) 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). 4) 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. 5) No parallel connection or plug and play Vin GND +Vo1 0V1 DC Cin L DC Cout +Vo2 0V2 L Cout L (Figure 1) Vin GND Vin GND REG Vo1 0V1 +Vo 0V DC DC DC DC Vo2 0V2 +Vo 0V REG REG (Figure 2) EXTERNAL CAPACITOR TABLE (TABLE 1) Vin (VDC) Cin ( μF) Vout(VDC) Cout (μF) 5 4.7 5 4.7 12 2.2 9 2.2 24 1 12 1 -- -- 15 0.47 It ’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. |
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