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D050505NS-1W 数据表(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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D050505NS-1W 数据表(HTML) 2 Page - MORNSUN Science& Technology Ltd. |
2 / 2 page MORNSUN reserves the copyright Specifications subject to change without notice. D_(N)S-1W&D_(N)D-1W A/1-2008 Page 2 of 2 ISOLATION SPECIFICATIONS APPLICATION NOTE 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 Load regulation 10% to 100% load 12.8 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. Note: 1. All specifications measured at TA=25 °C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. See below recommended circuits for more details. TYPICAL CHARACTERISTICS Operating Temp.( C) o OUTLINE DIMENSIONS & PIN CONNECTIONS P in REC OMME NDED FOOTPR INT Top view,gr id:2.5 4mm (0. 1inch) diameter :1. 00mm(0 .039 in ch) Note: Unit:m m(inch) P in s ection:0. 50*0 .30m m(0.02 0*0.012inch) P in s ection toler ances: 0.10 mm( 0. 004inch) Gen eral toler ances: 0.25 mm ( 0.01 0inch) (0.079) 0. 50 (0. 020) (0.100) 12 456 7 D_ S-1W 1 2 4 6 5 V in G ND 0V1 0V2 +Vo1 7 +Vo2 (0.772) 1 7 8 9 10 11 14 1 7 8 10 9 GND NC +Vo2 +Vo1 0V2 11 0V1 14 Vin Fi rst Angle Projection 8 9 10 11 14 17 D_NS-1W V in GND 0V1 0V2 +Vo1 +Vo2 D_ D-1W GND NC +Vo2 +Vo1 0V2 0V1 Vin D_ ND-1W D_(N)S- 1W SI P Package D_ S-1W D_( N) D- 1W DIP Pa ckage (B ot tom View) (Side Vie w) FOOTP RI NT DETA ILS P in 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 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 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). Vin GND +Vo1 0V1 DC Cin L DC Cout +Vo2 0V2 L Cout L (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). EXTERNAL CAPACITOR TABLE (Table 1) Vin (VDC) Cin (uF) Vout(VDC) Cout (uF) 5 4.7 5 4.7 12 2.2 9 2.2 24 1 12 1 -- -- 15 0.47 It ’s not recommend to connect any external capacitor in the application field with less than 0.5 watt output. 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). Vin GND Vin GND REG Vo1 0V1 +Vout 0V DC DC DC DC Vo2 0V2 +Vout 0V REG REG (Figure 2) 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. |
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