Драйвер подсветки с расширителем портов ввода/вывода
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ADP5520 - это универсальный однокристальный драйвер белых светодиодов подсветки с конфигурируемым расширителем портов ввода/вывода. Данный компонент подходит для применения в мобильных телефонах, требующих подсветки откидной или сдвигаемой части, а также детектирования и формирования сигналов ввода/вывода, светодиодной индикации и работы с клавиатурой. ADP5520 имеет совместимый с I2C® последовательный интерфейс и одну линию прерывания, что позволяет значительно сократить количество линий в гибком кабеле, необходимых для интерфейса с процессором обработки сигналов.

ADP5520 способен определять уровни интенсивности внешнего освещения и соответствующим образом подстраивать яркость подсветки, продлевая срок службы батареи. По завершении конфигурирования ADP5520 может осуществлять управление интенсивностью подсветки откидной/сдвигающейся части телефона, длительностями активного/неактивного интервалов и приглушением света без вмешательства основного процессора, обеспечивая сбережение ценного ресурса батареи.

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits

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Product Details

The ADP5520 evaluation board allows the user to exercise the main features and functionality of the ADP5520 backlight driver with I/O expander IC. A daughterboard houses the actual IC and associated components for backlight driving. The daughter-board plugs into a larger motherboard that houses additional components for device configuration and stimulus. The evaluation board is powered via the USB port and is accompanied by a free register graphical user interface (GUI) that allows interaction with all internal settings of the ADP5520.


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Software & Systems Requirements


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Reference Materials

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  • Solutions Bulletins & Brochures

    Integrated Power Solutions for Xilinx FPGAs

    Combining multiple switching regulators and LDOs into a single package enables very small, flexible, highly efficient...

  • Power Reference Designs

    ADP5520 LED Driver

    The ADP5520 demo board drives up to 6 LEDs in series and a RGB LED. The toggle switch S1 specifies one of two modes...

Design Resources

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

ADP5520 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints



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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.