A1212LT-2W

A0505LT-2W MORNSUN | Alldatasheet

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Technical content

MORNSUN reserves the copyright Specifications subject to change without notice. A_LT-2W & B_LT-2W A/1-2008 Page 1 of 2 A_LT-2W & B_LT-2W Series 2W, FIXED INPUT, ISOLATED & UNREGULATED, DUAL/SINGLE OUTPUT, SMD, DC-DC CONVERTER multi-country patent protection RoHS PRODUCT PROGRAM Input Output Voltage (VDC) Current (mA) Part Number Nominal Range Voltage (VDC) Max Min Efficiency (%, Typ) A0505LT-2W ±5 ±200 ±20 82 A0509LT-2W ±9 ±111 ±11 83 A0512LT-2W ±12 ±83 ±8 84 A0515LT-2W ±15 ±67 ±7 82 B0505LT-2W 5 400 40 80 B0509LT-2W 9 222 23 82 B0512LT-2W 12 167 17 84 B0515LT-2W 5 4.5-5.5 15 133 14 84 A1205LT-2W ±5 ±200 ±20 83 A1209LT-2W ±9 ±111 ±11 84 A1212LT-2W ±12 ±83 ±8 84 A1215LT-2W ±15 ±67 ±7 85 B1205LT-2W 5 400 40 82 B1209LT-2W 9 222 23 83 B1212LT-2W 12 167 17 85 B1215LT-2W 12 10.8-13.2 15 133 14 85 OUTPUT SPECIFICATIONS Item Test Conditions Min Typ Max Units Output power 0.2 2 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 75 150 mVp-p Switching frequency Full load, nominal input 70 KHz *Test ripple and noise by “parallel cable ” method. See detailed operation instructions at Testing of Power Converter Section, application notes. COMMON SPECIFICATION Item Test Conditions Min Typ Max Units Storage humidity 95 % Operating temperature -40 85 Storage temperature -55 125 Lead temperature 15 25 Temp. rise at full load 1.5mm from case for 10 seconds 260 Cooling Free air convection Short circuit protection* 1 s Case material Plastic(UL94-V0) MTBF 3500 K hours Weight 2.1 g *Supply voltage must be discontinued at the end of short circuit duration.

FEATURES

High Efficiency up to 85% 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

APPLICATIONS

The A_LT-2W & B_LT- 2W Series are specially designed for applications where a group of polar power supplies 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 (isolation voltage ≤1000VDC); 3) Where 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. MODEL SELECTION A0505LT-2W Product Series Input Voltage Output Voltage Package Style Rated Power 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 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.

MORNSUN reserves the copyright Specifications subject to change without notice. A_LT-2W & B_LT-2W A/1-2008 Page 2 of 2 ISOLATION CHARACTERISTICS Item Test Conditions Min Typ Max Units Isolation voltage Tested for 1 minute and 1mA max 1000 VDC Isolation resistance Test at 500VDC 1000 M Ω TYPICAL CHARACTERISTICS Operating Temp.(C) o RECOMMENDED REFLOW SOLDERING PROFILE 100 150 200 250 Time (sec.) 220

10 MaxSec

Peak.Temp 260

90 Max

( >220 ) Sec C C C Temperature C ( ) OUTLINE DIMENSIONS & PIN CONNECTIONS 6.00 1.27 2.75 2.54 1.300.13 0.5

5.0 MAX

(0.236) (0.050)(0.100) (0.108) 23567 8910121314 17.78(0.700) 12.70(0.500) 17.78(0.700) (0.020) (0.0520.005) 5.75 (0.226) A 0.25 (0.010) A FOOTPRINT DETAILS Pin Singles Duals Vin GND NC +Vo Vin GND -Vo +Vo

10 NC -Vo

NC:No Connection RECOMMENDED FOOTPRINT Top view,grid:2.54*2.54mm(0.1*0.1inch) Dual output & Single Output First Angle Projection 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) 1 1312 10 9814 2 3 5671 2.00 (0.079) 1.00 (0.039) 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 s mall, 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). 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 testing and application circuit If you want to further d ecrease 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). Dual Output Single Output Vin GND +Vo 0VDCCin L L DC L Cout Cout -Vo L Vin GND +Vo DCCin 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 - - 12 2.2 ±12 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). Dual Output Single Output Vin GND +Vout DCDC -Vout Vin GND 0V +Vout DC DC REG REG REG REG REG (Figure 2) No parallel connection or plug and play.