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数据搜索系统，热门电子元器件搜索 |
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IPS21 数据表(PDF) 1 Page - List of Unclassifed Manufacturers |
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IPS21 数据表(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 12 page  Power Management IPS20 and IPS21 © Copyright 2006-2009 - ASIC Advantage, Inc. AADS00001/AA743 - Revision 5– Dec 2008 1 / 12 IN-PLUG® series: IPS20 and IPS21 Precision Feedback Controllers Fixed and PTAT references R RE EV V5 5 INTRODUCTION DESCRIPTION IN-PLUG ® IPS20 & IPS21 Integrated Circuits are low-voltage current sensing feedback controllers used in Switch Mode Power Supplies to control load-side current and voltage. They have been designed to limit the power dissipated in the sensing circuitry for high output current applications that require current limiting. They also provide excellent loop stability and superb transient response. They both incorporate a 4V shunt regulator for maximum flexibility to power the chip. The IPS20 and IPS21 only differ by the characteristics of the current sensing references. The IPS20 incorporates a trimmed 54mV reference with a positive temperature coefficient which closely matches that of a PCB copper trace. This copper trace sensing method can be used inexpensively with very low associated power losses. The IPS21 incorporates a temperature compensated 100mV reference for more conventional resistors. Both controllers feature the same voltage regulator section with a trimmed temperature stable voltage reference of 1.19V. This allows the output voltage of the SMPS to be set to any value down to about 1.2V. The IPS20 and IPS21 are suitable for any SMPS and any make of SMPS controllers, including flyback, forward, PFC and DC/DC solutions. These flyback controllers work best in complement with the IN-PLUG ® family of IPS1x flyback controllers, IPS10x PFC controllers and IPS20x Push- Pull controllers. FEATURES • Dual precision regulators for SMPS voltage and current control • Output currents up to 50A • Output voltage down to 1.2V • 54mV or 100mV current sensing voltage • 1.19V voltage reference • Operates with grounded optocoupler • 4V shunt regulator for VCC supply APPLICATIONS • Fast chargers for power tools and other applications • Battery eliminators • Industrial and bench-type power supplies • Distributed power systems PIN CONFIGURATION: DIP-8 / SOIC-8 ORDERING INFORMATION For part number, packaging, and ordering information, please refer to the second-to-last page of this datasheet. VCC OUT (-) IS VS VCOMP OPTO GND IPS20 IPS21 1 45 8 ICOMP |
类似零件编号 - IPS21 |
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类似说明 - IPS21 |
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