A1205LT-2W

ELECTRONIC COMPONENTS RSG ■ 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 A_LT-2W Series FIXED INPUT ISOLATED & UNREGULATED 2W DUAL OUTPUT UTRALMINIATURE SMD PACKAGE Multi-country patent protection RoHS FEATURES ● 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 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. PRODUCT PROGRAM Part Number A0505LT-2W A0509LT-2W A0512LT-2W A1205LT-2W A1209LT-2W A1212LT-2W A1215LT-2W 5 4.5~5.5 Input Voltage (VDC) N ominal Range Voltage (VDC) ±5 ±9 ±12 ±5 ±9 ±12 ±15 Output Current (mA) Max Min ±200 ±111 ±83 ±200 ±111 ±83 ±67 ±20 ±11 ±8 ±20 ±11 ±8 ±7 Efficiency (%, Typ) 82 83 84 83 84 84 85 Package Style SMD SMD SMD SMD SMD SMD SMD 12 10.8~13.2 Note: The A_T-1W series also are available in our company. COMMON SPECIFICATIONS Short circuit protection Temperature rise at full load C ooling Operating temperature range Storage temperature range Lead temperature Storage humidity range C ase material MTBF 1 second 25°C Max, 15°C Typ Free air convection -40°C~+85°C -55°C ~+125°C 260°C (1.5mm from case for 10 seconds) ≤ 95% Plastic (UL94-V0) >3,500,000 hours ISOLATION SPECIFICATIONS Item Isolation voltage Isolation resistance Test conditions Tested for 1 minute and 1mA max Test at 500VDC Min 1000 1000 Typ Max Units VDC MΩ MODEL SELECTION OUTPUT SPECIFICATIONS Item Output power Line regulation Test conditions 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 Output ripple N oise Switching frequency 100% full load 20MHz Bandwidth 20MHz Bandwidth Full load, nominal input 75 150 70 10 6.5 6.0 6.0 Min 0.2 Typ Max 2 1.2 15 15 15 15 0.03 150 250 %/°C mVp-p kHz % Units W % A0505LT-2W Rated Power Package Style Output Voltage Input Voltage Product Series See tolerance envelope graph Note: 1. All specifications measured at TA=25°C, humidity220℃) 200 Te mp e ra t ur e (℃) 150 100 50 0 GND Time (sec. ) DC DC (Figure 1) C L C +Vo 0V -Vo PIN CONNECTIONS 1 2 P in Functio n GND Vin 3 NC 5 -Vo 6 0V 7 +Vo 8 NC 9 NC 10 12 13 - Vo NC NC 14 NC 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). OUTLINE DIMENSIONS& RECONMENDED FOOTPRINT DETAILS 2.7 5 (0. 11) 6.00 (0 . 2 4 ) 5. 75 (0.2 3) A (0.1± 0.004) 0 . 6±0 . 0 5 0. 0 2±0 . 0 02 (0.01) (0.05) 14 1312 17.78±0. 25 ( 0.7±0 .01) 10 9 8 0 .50 (0. 02) 0.2 5 (0.01) 1.27 2.54±0.1 0.25 12.7 (0. 5) (Figure 2) Overload Protection 5.00 MAX 。 123 567 15.24 (0.6) 17.78 (0.7) 1.30 ±0.13 (0. 05±0.005) N ote: 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) 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 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 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). EXTERNAL CAPACITOR TABLE Vin 5VDC 12VDC -External capacitor 4.7uF 2.2uF -Vout 5VDC 9VDC 12VDC 15VDC External capacitor 4.7uF 2.2uF 1uF 0.47uF It’s not recommend to connect any external capacitor in the application field with less than 0.5 watt output。 MORNSUN reserves the copyright For any design change and upgrade, we will not make any prior notification ■ ■ ■ ■ ■ A/1-2007 Page 2 of 2 ELECTRONIC COMPONENTS RSG ■ 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