Datasheet > AAT3686IXN-4.2-1-T1

AAT3686IXN-4.2-1-T1

更新时间： 2024-02-17 13:38:41

品牌	Logo	应用领域
AAT		电池
页数	文件大小	规格书
24页	549K
描述
USB Port/AC Adapter Lithium-Ion/Polymer Battery Charger

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AAT3686IXN-4.2-1-T1 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84

AAT3686IXN-4.2-1-T1 数据手册

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AAT3686

USB Port/AC Adapter

Lithium-Ion/Polymer Battery Charger

™

BatteryManager

General Description

Features

The AAT3686 BatteryManager is a highly integrated

single-cell lithium-ion/polymer battery charger IC

designed to operate with USB port and AC adapter

inputs. It requires the minimum number of external

components.

•

USB Port/AC Adapter System Power Charger

— USB: Programmable to 500mA for

USB Hi/Lo

— Adapter: Programmable to 1.5A Max

4.0V to 5.5V Input Voltage Range

Adapter Present Indicator (ADPP# Pin)

Adapter Presence Automatically Disables

USB Charging

High Level of Integration With Internal:

— Charging Devices

— Reverse Blocking Diodes

— Current Sensing

Automatic Recharge Sequencing

Digital Thermal Regulation in ADP Charge

Charge Reduction Loop in USB Charge

Battery Temperature Monitoring

Full Battery Charge Auto Turn-Off

Over-Voltage and Emergency Thermal

Protection

•

The AAT3686 precisely regulates battery charge

voltage and current for 4.2V lithium-ion/polymer

battery cells. Adapter charge current rates can be

programmed up to 1.5A. In the absence of an

adapter and with a USB port connected, the battery

can also be charged by USB power. Depending on

the USB port type, the AAT3686 charge current can

be programmed for two separate levels up to

500mA. An optional Charge Reduction Loop is also

built in to allow users to charge the battery with

available current from a USB port, while keeping

the port voltage regulated. USB charging is dis-

abled when an adapter is present.

•

Battery temperature and charge state are fully moni-

tored for fault conditions. In the event of an over-volt-

age or over-temperature failure, the device will auto-

matically shut down, thus protecting the charging

device, control system, and the battery under charge.

Status monitor output pins are provided to indicate

the battery charge status by directly driving two exter-

nal LEDs. A serial interface output is available to

report 22 various status states to a microcontroller.

•

Power On Reset and Soft Start

Serial Interface Status Reporting

TDFN34-16 or TDFN44-16 Package

Applications

•

Cellular Telephones

Digital Still Cameras

Hand-Held PCs

The AAT3686 is available in a Pb-free, thermally-

enhanced, space-saving TDFN34-16 (3x4mm) or

TDFN44-16 (4x4mm) package and is rated over the

-40°C to +85°C temperature range.

MP3 Players

Personal Data Assistants (PDAs)

Other Lithium-Ion/Polymer Battery-Powered

Devices

Typical Application

Enable

USB

CHR

BAT

USB Input

USBSEL

USB Hi/Lo Select

BATT+

USBH

USBL

10μF

R_SETH

AAT3686

R_SETL

BATT-

C_T

GND

ADP Present

ADP Input

ADPP#

ADP

ADPSET

DATA

TEMP

R_SET

STAT1

STAT2

Battery Pack

Serial Data

3686.2006.10.1.9

12 3 4 5 6 7...24

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