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A0512D-1W Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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A0512D-1W Datasheet(HTML) 2 Page - MORNSUN Science& Technology Ltd. |
2 / 2 page ![]() MORNSUN reserves the copyright Specifications subject to change without notice. A_D-1W & B_LD-1W A/2-2008 Page 2 of 2 OUTPUT SPECIFICATIONS Item Test conditions Min Typ Max Units Output power 0.1 1 W (3.3V output) ±1.5 Line regulation For Vin change of 1% (Other output) ±1.2 (3.3V output) 12 20 (5V output) 10.5 15 (9V output) 8.3 15 (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 (AXXXXD-1W) 50 75 (BXXXXD-1W) 75 100 Ripple & Noise* 20MHz Bandwidth (A/BXX24D-1W) 100 150 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.Dual output models unbalanced load: ±5%. TYPICAL CHARACTERISTICS Operating Temp.( C) o OUTLINE DIMENSIONS & PIN CONNECTIONS Dual Output Single Output Pin Single Dual FO OTP RINT DE TAILS RECO MMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) Note: Unit:mm(inch) Pin secti on:0.50*0.30mm( 0.020*0.012inch) Pin tolerances: 0.10mm( 0.004inch) General tolerances: 0.25mm( 0.010inch) First Angle Projec tion 1 7 8 9 11 14 1 7 8 9 11 14 1 7 8 9 14 1 8 9 11 Vin GND 0V +Vo No Pin V in GND + Vo NC NC 0V -Vo 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 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 (A_D -W25/B_LD-W25 series) 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. 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). Vin GND +Vo 0V DC Cin L L DC L Cout Cout -Vo Dual Output L Single Output Vin GND +Vo 0V DC Cin L DC Cout (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). EXTERNAL CAPACITOR TABLE (TABLE 1) Vin (VDC) Cin (uF) Single Vout (VDC) Cout (uF) Dual Vout (VDC) Cout (uF) 5 4.7 5 10 ±5 4.7 12 2.2 9 4.7 ±9 2.2 15 2.2 12 2.2 ±12 1 24 1 15 1 ±15 0.47 It ’s not recommended 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 0V +Vout DC DC -Vout REG REG REG D ual Output Si ngl e Output Vin GND 0V +Vout DC DC REG REG (Figure 2) No parallel connection or plug and play. |
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