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发布者:来自网络 发布时间:2014/7/25 阅读:3549次    关键字: 锂电充电
EUP8092-Li-ion/Li Polymer Battery Charger


EUP8092-Li-ion/Li Polymer Battery Charger DataSheet

DESCRIPTION
      TheEUP8092 is an integrated single-cell Li-ion or Li-polymer battery charger capable of operating with an input voltage as low as 2.4V. This charger is designed to work with various types of AC adapters or a USB port.
      TheEUP8092 operates as a linear charger when the AC adapter is a voltage source. The battery is charged in a CC/CV (constant current/constant voltage) profile. The charge current is programmable with an external resistor up to 2A. TheEUP8092 can also work with a current-limited adapter to minimize the thermal dissipation, in which case theEUP8092 combines the benefits of both a linear charger and a pulse charger.
      TheEUP8092 features charge current thermal foldback to guarantee safe operation when the printed circuit board is space limited for thermal dissipation. Additional features include preconditioning of an over-discharged battery, an NTC thermistor interface for charging the battery in a safe temperature range, automatic recharge, and thermally enhanced TQFN or TDFN packages.

FEATURES
•  Complete Charger for Single-Cell Li-ion Batteries
•  Very Low Thermal Dissipation
•  Integrated Pass Element and Current Sensor
•  No External Blocking Diode Required
•  1% Voltage Accuracy
•  Programmable Current Limit up to 2A
•  Programmable End-of-Charge Current
•  Charge Current Thermal Foldback
•  NTC Thermistor Interface for Battery Temperature Monitor
•  Accepts Multiple Types of Adapters or USB BUS Power
•  Guaranteed to Operate at 2.65V After Start-Up
•  Ambient Temperature Range: -20°C to +70°C
•  Thermally-Enhanced TQFN Packages
•  RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS
•  Handheld Devices including Medical Handhelds
•  Portable Instruments, MP3 Players
•  Self-Charging Battery Packs
•  Stand-Alone Chargers
•  USB Bus-Powered Chargers

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