A0505LT-2W RSG | Alldatasheet

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MORNSUN reserves the copyright For any design change and upgrade, we will not make any prior notification A/1-2007 Page 1 of 2 A_LT-2W Series FIXED INPUT ISOLATED & UNREGULATED 2W DUAL OUTPUT UTRALMINIATURE SMD PACKAGE Multi-country patent protection RoHS FEATURES PRODUCT PROGRAM Input Output Voltage (VDC) Current (mA) Part Number Nominal Range Voltage (VDC) Max Min Efficiency (%, Typ) Package Style A0505LT-2W ±5 ±200 ±20 82 SMD A0509LT-2W ±9 ±111 ±11 83 SMD A0512LT-2W 5 4.5~5.5 ±12 ±83 ±8 84 SMD A1205LT-2W ±5 ±200 ±20 83 SMD A1209LT-2W ±9 ±111 ±11 84 SMD A1212LT-2W ±12 ±83 ±8 84 SMD A1215LT-2W 12 10.8~13.2 ±15 ±67 ±7 85 SMD Note: The A_T-1W series also are available in our company. COMMON SPECIFICATIONS Short circuit protection 1 second Temperature rise at full load 25 °C Max, 15°C Typ Cooling Free air convection Operating temperature range -40 °C~+85°C Storage temperature range -55 °C ~+125°C Lead temperature 260 °C (1.5mm from case for 10 seconds) Storage humidity range ≤ 95% Case material Plastic (UL94-V0) MTBF >3,500,000 hours ISOLATION SPECIFICATIONS 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 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) 10 15 10% to 100% load (9V output) 6.5 15 10% to 100% load (12V output) 6.0 15 Load regulation 10% to 100% load (15V output) 6.0 15 Output voltage accuracy See tolerance envelope graph Temperature drift 100% full load 0.03 %/°C Output ripple 20MHz Bandwidth 75 150 Noise 20MHz Bandwidth 150 250 mVp-p Switching frequency Full load, nominal input 70 kHz

  • High Efficiency up to 85%
  • High Power Density
  • SMD Package Styles
  • Small Footprint
  • 1kVDC Isolation
  • Temperature Range: -40°C -+85°C
  • Industry Standard Pinout
  • No Heatsink Required
  • No External Component Required
  • RoHS Compliance

APPLICATIONS

The A_LT-2W Series are specially designed for applications where a group of polar pow er 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 in put 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 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. RSG ELECTRONIC COMPONENTS RSG Electronic Components GmbH ■ Sprendlinger Landstr. 115 ■ D-63069 Offenbach/Germany Tel. +49 69 984047-0 ■ Fax +49 69 984047-77 ■ info@rsg-electronic.de ■ www.rsg-electronic.de Änderungen vorbehalten / subject to change without notice

MORNSUN reserves the copyright For any design change and upgrade, we will not make any prior notification A/1-2007 Page 2 of 2 TYPICAL CHARACTERISTICS Ambient TemperatureC( ) RECOMMENDED REFLOW SOLDERING PROFILE 100 150 200 250 Time (sec.) Temperature ( )℃

90 Max

(>220) Sec 220

10 MaxSec

Peak.Temp 260 PIN CONNECTIONS Pin Function GND Vin NC -Vo +Vo NC NC -Vo NC NC NC OUTLINE DIMENSIONS& RECONMENDED FOOTPRINT DETAILS 123567 8910121314 0.25 A 6.00 1.27 0.25 2.75 2.54 1.300.13± 0.50

5.00 MAX。

(0.24) (0.05) (0.10.004)± (0.01) (0.11) 17.78 ( 0.7 0.01)± 12.7(0.5) 15.24 (0.6) 17.78 (0.7) (0.01)(0.02) (0.050.005)± ±0.25 ±0.05 ±0.1 0.6 0.02 0 .002± 5.75 (0.23) Note: All Pins on a 2.54mm(0.1) pitch; All Pin Widths are 0.60 mm(0.02); Tolerances:±0.15mm(0.006); Unit: mm(inch) Filtering In some circuits which are sensitive to noise and ripple, a filtering capacitor may be added to the DC/DC output end and input end to reduce the noise and ripple. 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 the EXTERNAL CAPACITOR TABLE. To get an extremely low ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, which may produce a more significant filtering effect. 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 (Figure 1). Vin GND +Vo 0VDCC L L DC L C C -Vo (Figure 1) 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 (Figure2). (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. APPLICATION NOTE EXTERNAL CAPACITOR TABLE Vin External capacitor Vout External capacitor 5VDC 4.7uF 5VDC 4.7uF 12VDC 2.2uF 9VDC 2.2uF 12VDC 1uF -- -- 15VDC 0.47uF Requirement on output load To ensure this module can operate efficiently and reliably, a min imum 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 (A_T-1W series). It’s not recommend to connect any external capacitor in the application field with less than 0.5 watt output。 RSG ELECTRONIC COMPONENTS RSG Electronic Components GmbH ■ Sprendlinger Landstr. 115 ■ D-63069 Offenbach/Germany Tel. +49 69 984047-0 ■ Fax +49 69 984047-77 ■ info@rsg-electronic.de ■ www.rsg-electronic.de Änderungen vorbehalten / subject to change without notice