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ADP5501 Datasheet(PDF) 2 Page - Analog Devices |
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ADP5501 Datasheet(HTML) 2 Page - Analog Devices |
2 / 28 page ADP5501 Rev. 0 | Page 2 of 28 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Typical Operating Circuit................................................................ 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Typical Performance Characteristics ............................................. 7 Theory of Operation ........................................................................ 9 Backlight Drive Control .............................................................. 9 Backlight Operating Levels ....................................................... 10 Backlight Maximum and Dim Settings ................................... 10 Backlight Turn-On/Turn-Off/Dim .......................................... 10 Automatic Dim and Turn-Off Timers..................................... 11 Linear Backlight Fade-In and Fade-Out.................................. 11 Fade Override ............................................................................. 13 Advanced Fading (Square)........................................................ 13 Advanced Fading (Cubic 1 and Cubic 2) ................................ 13 Ambient Light Sensing .............................................................. 14 Automatic Backlight Adjustment............................................. 14 LED Current Sinks ..................................................................... 15 Interrupt Output (INT) ............................................................. 17 Reset Input (RST)....................................................................... 17 Communicaton Interface .............................................................. 18 Register Map ................................................................................... 19 Detailed Register Descriptions ..................................................... 20 Applications Information .............................................................. 26 Converter Topology ................................................................... 26 PCB Layout ................................................................................. 27 Example Circuit.......................................................................... 27 Outline Dimensions ....................................................................... 28 Ordering Guide .......................................................................... 28 REVISION HISTORY 10/08—Revision 0: Initial Version |
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