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参数

Number of series cells 1 Charge current (Max) (A) 1 Operating Vin (Max) (V) 6 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.2 Battery charge voltage (Max) (V) 4.2 Absolute Vin (safety rating) (Max) ((V)) 6.5 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation Operating Vin (Min) (V) 4.5 Rating Catalog open-in-new 查找其它 电池充电器IC

封装|引脚|尺寸

WSON (DSC) 10 9 mm² 3 x 3 open-in-new 查找其它 电池充电器IC

特性

  • Integrated power FETs with thermal regulation
  • Charges from either an AC wall adapter or USB power source with automatic source selection
  • 50 mA to 1000 mA charge currents using AC wall adapter
  • Pin-selectable USB charge currents of 100 mA or 500 mA
  • LDO mode with 1A of source current is automatically invoked when the battery is absent and the AC wall adapter is connected
  • Continuous battery temperature monitoring
  • Built-in multiple safety timers
  • Charge status indication
  • Continuous over-current and temperature protection
  • Near-depleted battery pre-conditioning
  • Sleep mode with ultra low quiescent current
  • On-board Kelvin-sensing achieves ±0.35% termination accuracy
  • Maintenance mode with automatic recharge
  • Thermally enhanced 3 mm x 3 mm LLP package

  • open-in-new 查找其它 电池充电器IC

    描述

    The LM3658 is a single chip charger IC designed for handheld applications. It can safely charge and maintain a single cell Li-Ion/Polymer battery operating from an AC wall adapter or USB power source. Input power source selection of USB/AC is automatic. With both power sources present, the AC power source has priority. Charge current is programmed through an external resistor when operating from an AC wall adapter allowing charge currents from 50 mA to 1000 mA. When the battery is charged using USB power, charge currents of 100 mA or 500 mA are pin-selectable. The termination voltage is controlled to within ±0.35% of 4.2V.

    The LM3658 requires few external components and integrates internal power FETs, reverse current protection and current sensing. The internal power FETs are thermally regulated to obtain the most efficient charging rate for a given ambient temperature.

    The LM3658 operates in five modes: pre-qualification mode, constant-current mode, constant-voltage mode, top-off mode and maintenance mode. Additionally, the charger IC operates as a linear regulator in “LDO mode”, when the AC wall adapter is connected and no battery is present. Optimal battery management is obtained through thermal regulation, battery temperature measurement and multiple safety timers. The LM3658 provides two open-drain outputs for LED status indication or connection to GPIOs.


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    技术文档

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    类型 标题 下载最新的英文版本 发布
    * 数据表 LM3658 Dual Source USB/AC Li Chemistry Charger IC for Portable Applications 数据表 2007年 3月 10日
    技术文章 When to use rechargeable batteries in small battery applications 2019年 10月 1日
    技术文章 Should I use a linear charger or a switching charger? 2015年 10月 30日
    技术文章 Summertime and the livin' is easy 2014年 6月 20日
    用户指南 AN-1517 LM3658 Evaluation Kit 2013年 4月 30日

    设计与开发

    有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

    硬件开发

    评估板 下载
    document-generic 用户指南
    $99.00
    说明

    The LM3658 is a single chip charger IC designed for hand-held applications. The LM3658 can safely charge and maintain a single cell Li-Ion/Polymer battery operating from an AC wall adapter or the USB power source. Input power source selection of USB/AC is automatic. With both power sources present (...)

    特性
    • Integrated power FETs with thermal regulation
    • Charges from either an AC wall adapter or USB power source with automatic source selection
    • 50mA to 1000 mA charge currents using AC wall adapter
    • Pin-selectable USB charge currents of 100 mA or 500 mA
    • LDO mode with 1A of source current is automatically (...)
    评估板 下载
    document-generic 用户指南
    $99.00
    说明

    Recommended tool:
    bq24040 is the recommended alternative to the LM3658 devices. Please refer to the bq24040EVM for new device evaluation.


    The LM3658 is a single chip charger IC designed for hand-held applications. The LM3658 can safely charge and maintain a single cell Li-Ion/Polymer battery operating (...)

    特性
    • Integrated power FETs with thermal regulation
    • Charges from either an AC wall adapter or USB power source with automatic source selection
    • 50mA to 1000 mA charge currents using AC wall adapter
    • Pin-selectable USB charge currents of 100 mA or 500 mA
    • LDO mode with 1A of source current is automatically (...)

    CAD/CAE 符号

    封装 引脚 下载
    WSON (DSC) 10 了解详情

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