GS-RXXX12 DC/DC STEP DOWN POWER SUPPLY PRELIMINARY DATA FEATURES ■ MODULE DC/DC STEP DOWN SINGLE OUTPUT ■ WIDE RANGE INPUT VOLTAGE 100÷370 Vdc ■ ■ ■ ■ OUTPUT POWER 1.8W, 4.5W OR 12W MAX OUTPUT VOLTAGE PRECISION 5% FOR 4.5W AND 12W OUTPUT VOLTAGE PRECISION 10% FOR 1.8W OUTPUT SHORT CIRCUIT PROTECTION DESCRIPTION The DC/DC module is a high efficiency DC/DC not insulated switch mode constant voltage generator. Designed for industrial application where low voltages are required from main. Power Module VIP 4.5W Step down converter performs a max 1.8W, 4.5 W and 12W power conversion. The output voltages and current level are set up by design in accordance with customer requirements. Typical reference values for the shelf solution are: -single output -12V, ±10%, 0.15A for 1.8W; -single output -12V, ±5%, 0.35A for 4.5W; -single output -12V, ±5%, 1A for 12W. Power Module SM 12W Power Module VIP 1.8W Rev. 1 December 2004 This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without notice. 1/8 GS-RXXX12 Figure 1. Application Diagram for 1.8W and 4.5W 1A FUSE POWER MODULE L1 -12V (RECOMMENDED FOR SAFETY COMPLIANCE) RTN N1 Figure 2. Application Diagram for 12W 1A FUSE POWER MODULE L1 -12V (RECOMMENDED FOR SAFETY COMPLIANCE) 33µF (NOT NEEDED FOR EUROPEAN BUS) N1 2/8 RTN GS-RXXX12 Table 1. Electrical Characteristics (Tamb=25)C, unless otherwise specified.) Symbol Vi Parameter Test Condition Min. Typ. Unit 370 Vdc Input Voltage Output Power 1.8W, 4.5W and 12W Vo1 Output Voltage Vi = 100 to 370 Vdc for 4.5W and 12W -12.6 -12 -11.4 V Vo2 Output Voltage Vi = 100 to 370 Vdc for 1.8W -10.8 -12 -13.2 V Io1 Output Current Vi = 100 to 370 Vdc for 1.8W 0.15 A Io2 Output Current Vi = 100 to 370 Vdc for 4.5W 0.35 A Io3 Output Current Vi = 100 to 370 Vdc for 12W 1 A Vor Output Ripple Vi = 100 to 370 Vdc Iosc Output short circuit current Vi = 100 to 370 Vdc n Efficiency Vi = 100 to 370 Vdc Io=0.15 A for 1.8W 70 % n Efficiency Vi = 100 to 370 Vdc Io=0.35 A for 4.5W 80 % n Efficiency Vi = 100 to 370 Vdc Io=1 A for 12W 83 % P stand by Power losses in no load condition Iir Inrush input current Top Operating Ambient Temperature Tstg Storage Temperature Range 100 Max. 5% Hiccup Mode A 0.3 Vi = 320 Vdc Io = 0 mA Vi = 320 Vdc mVpp 30 W A 0 70 °C -20 85 °C AGENCY APPROVALS The safety and EMI compliance has to be assured by the user. 3/8 GS-RXXX12 Figure 3. Mechanical Data for 1.8W (dimensions in mm) Figure 4. Mechanical Data for 4.5W (dimensions in mm) 4/8 GS-RXXX12 Figure 5. Mechanical Data for 12W (dimensions in mm) Figure 6. Mechanical Data for 1.8W (dimensions in mm) 5/8 GS-RXXX12 Figure 7. Mechanical Data for 4.5W (dimensions in mm) Figure 8. Mechanical Data for 12W (dimensions in mm) 6/8 GS-RXXX12 Figure 9. Mechanical Data (dimensions in mm) Figure 10. Ordering Information Scheme GS-Rx.xx12yyy Output Current 0.15 0.35 1.00 Output Voltage VIP VIP SM Table 2. Revision History Date Revision Description of Changes 14-Dec.-2004 1 First Release 7/8 GS-RXXX12 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2004 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America http://www.st.com 8/8