Datasheet > AAT3688IWP-4.2-T1

AAT3688IWP-4.2-T1

更新时间： 2024-02-14 01:28:36

品牌	Logo	应用领域
ANALOGICTECH		电池
页数	文件大小	规格书
23页	527K
描述
USB Port Lithium-Ion/Polymer Battery Charger

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AAT3688IWP-4.2-T1 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.79

AAT3688IWP-4.2-T1 数据手册

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AAT3688

USB Port Lithium-Ion/Polymer Battery Charger

™

BatteryManager

General Description

Features

The AAT3688 BatteryManager™ is a member of

AnalogicTech's Total Power Management IC™

(TPMIC™) product family. This device is a highly

integrated single cell lithium-ion/polymer battery

charger IC designed to operate with USB port

inputs. It requires the minimum number of external

components.

•

USB Charger

— Programmable up to 500mA Max

4.0V to 5.5V Input Voltage Range

High Level of Integration With Internal:

— Charging Device

— Reverse Blocking Diode

— Current Sensing

•

Automatic Recharge Sequencing

Charge Reduction Loop for USB Charging

Battery Temperature Monitoring

Full Battery Charge Auto Turn-Off

Over-Voltage Protection

Emergency Thermal Protection

Power On Reset and Soft Start

Serial Interface Status Reporting

12-Pin 3x3mm TDFN Package

The AAT3688 precisely regulates battery charge

voltage and current for 4.2V lithium-ion/polymer bat-

tery cells. Depending on the USB port type, the

AAT3688 charge current can be programmed for

two separate levels up to 500mA. An optional

Charge Reduction Loop is built in to allow users to

charge the battery with available current from a USB

port, while keeping the port voltage regulated.

Battery temperature and charge state are fully

monitored for fault conditions. In the event of an

over-voltage or over-temperature failure, the

device will automatically shut down, thus protecting

the charging device, control system, and the bat-

tery under charge. Status monitor output pins are

provided to indicate the battery charge status by

directly driving two external LEDs. A serial interface

output is available to report any one of 14 various

status states to a microcontroller.

Applications

•

Bluetooth™ Headsets

Cellular Telephones

Digital Still Cameras

Hand-Held PCs

MP3 Players

The AAT3688 is available in a Pb-free, thermally-

enhanced, space-saving 12-pin 3x3mm TDFN

package and is rated over the -40°C to +85°C tem-

perature range.

Personal Data Assistants (PDAs)

Other Lithium-Ion/Polymer Battery-Powered

Devices

Typical Application

Enable

USB

EN CHR

USB Input

USBSEL

USB Hi/Lo Select

BATT+

USBH

BAT

10μF

R_SETH

USBL

AAT3688

R_SETL

BATT-

GND

DATA

TEMP

STAT1

STAT2

Battery Pack

Serial Data

3688.2006.04.1.3

12 3 4 5 6 7...23

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