B1209LT-2W

A_LT-2W & B_LT-2W Series 2W, FIXED INPUT, ISOLATED & UNREGULATED, DUAL/SINGLE OUTPUT, SMD, DC-DC CONVERTER FEATURES High Efficiency up to 85% SMD Package 1KVDC Isolation Temperature Range: -40°C to +85°C Internal SMD Construction No Heat sink Required No External Component Required Industry Standard Pinout RoHS Compliance m ulti-country patent protection Output RoHS PRODUCT PROGRAM I nput Part Number A0505LT-2W A0509LT-2W A0512LT-2W A0515LT-2W B0505LT-2W B0509LT-2W B0512LT-2W B0515LT-2W A1205LT-2W 5 4.5-5.5 Voltage (VDC) Nominal Range Voltage (VDC) ±5 ±9 ±12 ±15 5 9 12 15 ±5 ±9 ±12 12 10.8-13.2 ±15 5 9 12 15 Current (mA) Max ±200 ±111 ±83 ±67 400 222 167 133 ±200 ±111 ±83 ±67 400 222 167 133 Min ±20 ±11 ±8 ±7 40 23 17 14 ±20 ±11 ±8 ±7 40 23 17 14 82 83 84 82 80 82 84 84 83 84 84 85 82 83 85 85 Efficiency (%, Typ) APPLICATIONS The A_LT-2W & B_LT-2W Series are specially designed for applications where a group of polar power supplies are isolated from t he input power supply in a distributed power supply system on a circuit board. These products apply to: 1) W here the voltage of the input power supply is fixed (voltage variation ≤ ±10%); 2) W here isolation is necessary between input and output (isolation voltage ≤ 1000VDC); 3) W here the regulation of the output voltage and the output ripple noise are not demanding. Such as: purely digital circuits, ordinary low frequency analog circuits, and IGBT power device driving circuits. A1209LT-2W A1212LT-2W A1215LT-2W B1205LT-2W B1209LT-2W B1212LT-2W B1215LT-2W OUTPUT SPECIFICATIONS Item Output power Line regulation For Vin change of 1% 10% to 100% load (5V output) Load regulation 10% to 100% load (9V output) 10% to 100% load (12V output) 10% to 100% load (15V output) Output voltage accuracy Temperature drift Ripple & Noise* Switching frequency 100% full load 20MHz Bandwidth Full load, nominal input 75 70 12.8 8.3 6.8 6.3 Test Conditions Min 0.2 Typ Max 2 ±1.2 15 15 15 15 0.03 150 %/ °C m Vp-p KHz % Units W See tolerance envelope graph MODEL SELECTION A0505LT-2W Rated Power Package Style Output Vol tage Input Voltage Product Series *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter Section, application notes. COMMON SPECIFICATION I tem Storage humidity Operating temperature Storage temperature Lead temperature -40 -55 15 1.5mm from case for 10 seconds Test Conditions Min Typ Max 95 85 125 25 260 Free air convection 1 Plastic(UL94-V0) 3500 2.1 K hours g s °C Units % MORNSUN Science& Technology co.,Ltd. Address: 2th floor 6th building, Hangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 http://www.mornsun-power.com Temp. rise at full load Cooling Short circuit protection* Case material MTBF W eight *Supply voltage must be discontinued at the end of short circuit duration. Note: 1.All specifications measured at TA=25°C, humidity 220 C ) frequency of t he “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). A 0.2 5 (0.010) Ti me (sec.) OUTLINE DIMENSIONS & PIN CONNECTIONS First Angle Projection 6 .0 0 (0.2 36) 5 .7 5 (0. 226) 2 .7 5 (0.108) EXTERNAL CAPACITOR TABLE (TABLE 1) 1.27 (0.050) 2.54 (0.100) Vin (VDC) 5 12 - Cin (uF) 4.7 2.2 - 17.78 (0.700) 12. 70(0.500) 14 13 12 10 9 8 RECOMMENDED FOOTPRINT Top view,grid:2.54*2.54mm(0.1*0.1inch) Dual output & Single Output 14 13 12 10 9 8 Single Vout (VDC) 5 9 12 15 Cout (uF) 10 4.7 2.2 1 Dual Vout (VDC) ±5 ±9 ±12 ±15 Cout (uF) 4.7 2.2 1 0.47 123 567 2.00 (0.079) It’s not recommended to connect any external capacitor in t he application field with less than 0.5 watt output. 1 23 567 17.78 (0.700) A 0. 5 (0.020) 1.00 (0.039) FOOTPRINT DETAILS Singles Pin Duals 1 GND GND 2 Vin Vin 5 NC -Vo 6 0V 0V 7 +Vo +Vo 10 NC -Vo Others NC NC NC:No Connection 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). D u a l O u tp u t Vin GND S in g l e O u tp u t Vin GND REG REG +Vout REG REG +Vout 0V REG -Vout 。 5.0 MAX 1.30 0.13 (0.052 0.005) Note: Unit:mm(inch) Pin section:0.60*0.25mm(0.024*0.010inch) Pin tolerances: 0.10mm( 0.004inch) General tolerances: 0.25mm( 0.010inch) DC DC 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_T -1W/B_T-1W series). DC DC 0V (Figure 2) No parallel connection or plug and play. MORNSUN reserves the copyright Specifications subject to change without notice. A_LT-2W & B_LT-2W A/1-2008 Page 2 of 2