Datasheet > EUP8020G-JIR1

EUP8020G-JIR1

更新时间： 2024-01-18 19:51:30

品牌	Logo	应用领域
德信 - EUTECH		便携式
页数	文件大小	规格书
12页	397K
描述
Dual Source AC/USB Li-Ion/Polymer Charger IC for Portable Applications

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EUP8020G-JIR1 数据手册

EUP8020X

Dual Source AC/USB Li-Ion/Polymer

Charger IC for Portable Applications

DESCRIPTION

FEATURES

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 selects the

USB-Port or the AC-adapter as the power source for the

system. In the USB configuration, the host can select 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.

Charges Single Cell Li-Ion/Polymer from Either

AC Adapter or USB With Autonomous

Power-Source Selection

Integrated Power FET and Current Sensor for Up

to 1A Charge Applications From AC Adapter

Integrated USB Control With Selectable

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

APPLICATIONS

The EUP8020X integrates internal power FET , current

sensor, charge status and reverse current protection in a

single monolithic devices.

Smartphones

Digital Cameras

PDAs/ MP3 Players

Other Battery-Powered Devices

Typical Application Circuit

Figure 1. EUP8020A

DS8020X Ver 1.1 June 2006

12 3 4 5 6 7...12

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