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    深圳市利盛达科技有限公司 利盛达科技让电源设计更便捷可靠|联系电话:13928434054
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    EMC5040,1.2A,13.5V输入单节线性锂电池充电IC

    EMC5040】1.2A,13.5V输入单节线性锂电池充电IC

    • EMC5040 所属品牌:其他
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    EMC5040 详细介绍

    EMC4054概述
    EMC5040完整的单节锂离子电池用恒定电流/恒定电压线性充电器。其TDFN-10封装与较少的外部组件数目使得EMC5040成为便携式应用的理想选择。而且,EMC5040是专为在 USB 电源规范内工作而设计的。采用了内部 MOSFET 架构,所以不需要外部检测电阻器和隔离二极管。热反馈可对充电电流进行调节,以便在大功率操作或高环境温度条件下对芯片温度加以限制。充电电压固定于 4.2V,而充电电流可通过一个电阻器进行外部设置。当充电电流在达到最终浮充电压之后降至设定值的 1/10 时,EMC5040 将自动终止充电循环。当输入电压 (交流适配器或 USB 电源) 被拿掉时,EMC5040自动进入一个低电流状态,将电池漏电流降至 2µA 以下?山EMC5040置于;J,从而将供电电流降至 25µA。
    The EMC5040 is a complete linear charger for single cell lithium-ion batteries. With small TDFN-10 package and few external components, EMC5040 is well suited for portable applications. In addition, the EMC5040 is specifically designed to work within USB power specifications.  No external sense resistor and blocking diode are required. Charging current can be programmed externally with a single resistor. The built-in thermal regulation facilitates charging with maximum power without risk of overheating. 
    The EMC5040 always preconditions the battery with 1/10 of the programmed charge current at the beginning of a charge cycle, after it verifies that the battery can be fast-charged. The EMC5040 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. 
    The EMC5040 features 13.5V maximum rating voltage for AC adapter, and it provides the charge current up to 1.2A. Other features include battery temperature monitoring, reverse current protection, shutdown mode, charging current monitor, under voltage lockout, automatic recharge and status indicator.

    EMC5040技术特性
    Programmable charge current up to 1.2A
    No MOSFET, sense resistor or blocking diode required
    Complete linear charger in TDFN-10 for single cell li-ion batteries
    Thermal regulation maximizes charge rate without risk of overheating
    Thermistor input for temperature qualified charging
    Charges single cell Li-ion batteries directly from USB port.
    Preset 4.2V charge voltage with ±1% accuracy
    Automatic recharge
    Charge status indicator
    C/10 charge termination
    Battery reverse leakage current less than 1uA


    EMC5040应用领域
    Wireless handsets
    Hand-held instruments
    Portable information appliances