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ADP2291 Datasheet(PDF) 2 Page - Analog Devices |
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ADP2291 Datasheet(HTML) 2 Page - Analog Devices |
2 / 20 page ADP2291 Rev. 0 | Page 2 of 20 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration And Functional Descriptions......................... 6 Typical Performance Characteristics ............................................. 7 Theory of Operation ...................................................................... 10 Precharge Mode .......................................................................... 10 End-of-Charge Mode................................................................. 10 Shutdown Mode.......................................................................... 10 Charge Restart............................................................................. 10 Programmable Timer................................................................. 10 Charge Status Indicator ............................................................. 10 Automatic Reverse Isolation ..................................................... 10 Overshoot Protection................................................................. 10 Power Supply Checks ................................................................. 10 Thermal Shutdown .................................................................... 11 Application Information................................................................ 12 Setting the Maximum Charge Current.................................... 12 Setting the Maximum Charge Time ........................................ 12 External Capacitors.................................................................... 12 Reverse Input Protection........................................................... 12 External Pass Transistor ............................................................ 13 Typical Application Circuit ....................................................... 14 EOC Terminates Charging........................................................ 14 Selectable Charge Current......................................................... 14 Thermal Protection.................................................................... 14 Printed Circuit Board Layout Considerations........................ 16 LFSCP Layout Considerations.................................................. 16 Outline Dimensions ....................................................................... 18 Ordering Guide .......................................................................... 18 REVISION HISTORY 10/04—Initial Version: Revision 0 |
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