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發布者:微橋 發布時間:2012/10/17 閱讀:6836次    關鍵字: 鋰電充電
EUP8020X-1A AC/USB雙電源輸入單節鋰離子/鋰聚合物電池充電管理IC


EUP8020X-1A AC/USB雙電源輸入單節鋰離子/鋰聚合物電池充電管理IC DataSheet

概述
    EUP8020X系列是高集成鋰離子(Li-Ion)和鋰聚合物(Li-Pol)電池線性充電電源管理組件。EUP8020X可接受AC與USB兩種電源輸入,自動選擇USB端或AC適配器作為系統的電壓來源。在USB充電組態,外部控制可以預先設定充電電流為500mA或100mA。在AC充電組態,利用外部電阻來設定充電電流大小,電流可高達1A。
    EUP8020X充電有三個區段,包含涓流充電,恒流與恒壓充電。充電結束有兩種控制方式:最小電流充電終止以及內部計數器計數充電終止。假如電池電壓下降至再充電門限值以下,EUP8020X自動重新開始充電。當兩個電源均移除后,EUP8020X自動進入休眠模式。充電時無須外接MOSFET、電流檢測電阻和隔離二極管。
    EUP8020X將功率FET,電流檢測電阻,充電狀態,反相電流保護集成于芯片中。

特點
•  自動選擇AC適配器或USB電源,為單節鋰離子或鋰聚合物電池充電
•  集成功率FET和電流感測,由AC適配器提供產生高達1A的充電電流
•  集成USB充電控制,可選100mA/500mA充電電流
•  含安全時間計數的預充電狀態
•  AC電源存在時電源好狀態輸出
•  充電前和充電過程電池溫度檢測
•  低功耗自動休眠模式
•  3mm x 3mm TDFN-10封裝
•  符合RoHS規范及Pb-Free
 
應用
•  智能電話
•  數碼相機
•  PDA/MP3播放器
•  網絡家電

EUP8020X-Dual Source AC/USB Li-Ion/Polymer Charger IC for Portable Applications 

Description
The EUP8020X series are highly integrated single cell Li-Ion/Polymer battery charger IC designed for handheld devices. The EUP8020X accepts two power inputs, normally one from a USB port and another one from AC-adaptor. The EUP8020X automatically s the USB-Port or the AC-adapter as the power source for the system. In the USB configuration, the host can from the two preset charge rates of 100 mA and 500 mA. In the AC-adapter configuration an external resistor sets the magnitude of the charge current, which may be programmed up to 1A.
The EUP8020X charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The EUP8020X automatically re-starts the charge if the battery voltage falls below an internal threshold. The EUP8020X also automatically enters sleep mode when both supplies are removed. No external sense resistor or blocking diode is required for charging.
The EUP8020X integrates internal power FET, current sensor, charge status and reverse current protection in a single monolithic devices.

Feature
• Charges Single Cell Li-Ion/Polymer from Either AC Adapter or
USB With Autonomous Power-Source ion
• Integrated Power FET and Current Sensor for Up to 1A Charge Applications From AC Adapter
• Integrated USB Control With able 100 mA and 500 mA Charge Rates
• Precharge Conditioning With Safety Timer
• Power Good (AC Adapter Present) Status Output
• Optional Battery Temperature Monitoring Before and During Charge
• Automatic Sleep Mode for Low-Power Consumption
• Available in TDFN-10 Package
• RoHS Compliant and 100% Lead (Pb)-Free

Application
• Smartphones
• Digital Cameras
• PDAs/ MP3 Players
• Other Battery-Powered Devices

本文共分 1

  • 上篇文章EUP8010X-1A高集成鋰電池線性充電電源管理IC
  • 下篇文章EUP8060X-高輸入電壓,具熱調節充電電流的1A鋰電池充電管理IC
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