H_LT-2W Series 2W, FIXED INPUT, ISOLATED & UNREGULATED SINGLE OUTPUT, SMD DC-DC CONVERTER multi-country patent protection FEATURES RoHS PRODUCT PROGRAM High Efficiency up to 80% SMD Package 6KVDC Isolation Temperature Range: -40°C to +85°C Internal SMD Construction No Heat sink Required No External Component Required Continuous short circuit protection Industry Standard Pinout RoHS Compliance Input Part Number Voltage (VDC) Nominal Range 5 H0512LT-2W* Max Min 5 400 40 76 4.5-5.5 12 167 17 79 H0515LT-2W 15 133 13 78 H1205LT-2W* 5 400 40 76 H1212LT-2W* 12 10.8-13.2 12 167 17 80 H1215LT-2W 15 133 13 79 H2405LT-2W* 5 400 40 77 12 167 17 80 15 133 13 78 24 21.6-26.4 H2415LT-2W* The H_LT-2W Series are specially designed for applications where a group of polar power supplies Efficiency (%, Typ) Current (mA) Voltage (VDC) H0505LT-2W H2412LT-2W* APPLICATIONS Output *Designing. are isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: 1) Where the voltage of the input power supply is fixed (voltage variation ≤ ±10%); 2) Where isolation is necessary between input and OUTPUT SPECIFICATIONS Item the output ripple noise are not demanding. Min Output power Line regulation output (isolation voltage ≤6000VDC); 3) Where the regulation of the output voltage and Test Conditions Load regulation 0.2 Max Units 2 W ±1.2 For Vin change of 1% 10% to 100% load (5V output) 12.8 15 10% to 100% load (12V output) 6.8 15 6.3 15 10% to 100% load (15V output) Such as: purely digital circuits, ordinary low Typ frequency analog circuits, and IGBT power device Output voltage accuracy driving circuits. Temperature drift 100% full load Ripple & Noise* 20MHz Bandwidth Switching frequency Full load, nominal input % See tolerance envelope graph 150 0.03 %/°C 200 mVp-p 50 KHz *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter. Section, application notes. MODEL SELECTION H0505LT-2W R ated Pow er Package Styl e Output Vol tage Input Vol tage Product Series COMMON SPECIFICATION Item Test Conditions Min Storage humidity Units 95 % -40 85 Storage temperature -55 125 Lead temperature Address: 2th floor 6th building, Hangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 http://www.mornsun-power.com Max Operating temperature Temp. rise at full load MORNSUN Science& Technology co.,Ltd. Typ 15 1.5mm from case for 10 seconds °C 25 260 Cooling Free air convection Case material Plastic(UL94-V0) Short circuit protection Continuous, automatic recovery MTBF 3500 Weight The copyright and authority for the interpretation of the products are reserved by Mornsun K hours 3.8 g Specifications subject to change without notice. H_LT-2W A/0-2009 Page 1 of 2 ISOLATION CHARACTERISTICS Item Test Conditions Min Isolation voltage Tested for 1 minute and 1mA max 6000 VDC Isolation resistance Test at 500VDC 1000 MΩ Isolation capacitance Typ Max 10 Units 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). pF L L +Vo Vin DC DC Cin TYPICAL CHARACTERISTICS Cout G ND 0V (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 Operating Temp.(oC) operation is ensured, the recommended capacitance RECOMMENDED REFLOW SOLDERING PROFILE Temperature ( C ) of its filter capacitor sees (Table 1). EXTERNAL CAPACITOR TABLE (Table 1) P eak. Temp 26 0 C 10 Sec Max 220 C 2 50 2 00 1 50 90 Sec M ax (> 22 0 C ) 1 00 Vin (VDC) 5 Cin (uF) 4.7 Single Vout (VDC) 5 Cout (uF) 10 12 2.2 12 2.2 24 1 15 1 It’s not recommend to connect any external capacitor in the 50 application field with less than 0.5 watt output. 0 Tim e (s ec .) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, OUTLINE DIMENSIONS & PIN CONNECTIONS First Angle Projection 8.00 (0.315) 7.50 (0.295) 23.86 (0.940) over-voltage and over-current protection is a linear RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) (Side View) 3.04 (0.120) 13.70 (0.540) 16 18.50(0.728) connected to the input or output end in series (Figure 2). 2.54 (0.100) 16 voltage regulator with overheat protection that is 10 9 2.00 (0.079) 10 9 Vin +Vout REG DC DC GND 0V (Top View) 1 1 78 7 8 15.24(0.600) FOOTPRINT DETAILS 0.25 (0.010) A 13.10 (0.516) 18.50(0.728) 0.50 (0.020) A 。 5.0MAX 1.35 (0.053) REG Vin 1.00 (0.039) Pin Function 1 GND 7 NC 8 NC +Vo 9 10 -Vo 16 Vin NC:No Connection 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) APPLICATION NOTE 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 GND +Vout DC DC 0V (Figure 2) Overload Protection Under norm al 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. Note: 1. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. Only typical models listed, other models may be different, please contact our technical person for more details. 3. Operation under minimum load will not damage the converter; However, they may not meet all specification listed. 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. The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. H_LT-2W A/0-2009 Page 2 of 2