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ZSP4491 - 雙面板EL驅動器 | 亞信電子
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首頁 >> 產品訊息 >> I/O 連接控制器 >> EL驅動器 >> ZSP4491

 ZSP4491 -- 雙面板EL驅動器

The ZSP4491 electroluminescent lamp driver provides designers of cell phones PDA’s and other handheld, portable electronic devices with an integrated solution for driving two EL lamps independently or concurrently. The ZSP4491 is designed with our proprietary high voltage BiCMOS technology. The ZSP4491 reduces system cost, component count and board space requirements over a discrete 2-EL driver approach. The EL lamps operate in opposite phase so the ZSP4491 can be easily implemented in applications driving multi-color or multi-segment EL lamps. The ZSP4491 operates from a +2.2V to +5.0V battery source. The device features a low power standby mode which draws less than 1mA. The frequency of the internal oscillator is set using a single external resistor. A single external inductor is required to generate the high voltage AC outputs to drive the EL lamps. All input pins are ESD protected with internal diodes to V DD and VSS.

規格:

  • Single IC drives 2 EL lamps for backlighting:
    • Cell phone keypad and LCD
    • Multi-color EL lamps
    • Multi-segment EL lamps
  • Control over lamp-A and lamp-B for independent or concurrent operation
  • +2.2V to +5.0V battery operation
  • Single coil used to generate high voltage AC outputs
  • Low power standby mode draws 100nA typical current
  • A single resistor controls the internal oscillator
  • DC-AC inverter produces up to 220Vpp
  • Space-saving 10-pin MSOP package

應用目標:
  • Cellular phones
  • PDA’s
  • EL keypads & dashboards
  • Handheld GPS units
  • Security systems
  • POS terminals

 方塊圖

ZSP4491_Block_Diagram.jpg

 選型指南

IO_EL_Drivers_Selection_Guide.jpg

技術文件

 產品簡介,產品介紹和數據表

ZSP4491 產品簡介337.3 KB2015-04-30
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ZSP4491 數據表 1 MBV2.002015-06-10
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