Datasheet > AAT3683IOQ-4.2-3-T1

AAT3683IOQ-4.2-3-T1

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		电池
页数	文件大小	规格书
24页	588K
描述
1A Linear Li-Ion Battery Charger

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AAT3683

1A Linear Li-Ion Battery Charger

™

BatteryManager

General Description

Features

The AAT3683 BatteryManager is a highly integrat-

ed single-cell lithium-ion / polymer (Li-Ion) battery

charger that operates from a USB port or an AC

adapter input up to an input voltage of 6.5V.

•

USB or AC Adapter Input

Programmable from 100mA to 1A

4.0V to 6.5V Input Voltage Range

High Level of Integration with Internal:

— Charging Device

The AAT3683 precisely regulates battery charge

voltage and current for 4.2V Li-Ion battery cells.

The battery charging current can be set by an

external resistor up to 1A.

— Reverse Blocking Diode

— Current Sensing

•

Digital Thermal Regulation

Charge Current Programming (ISET)

Charge Termination Current Programming (TERM)

Charge Timer (CT)

Digital Thermal Loop Control maintains the maxi-

mum possible battery charging current for the given

set of input to output power dissipation and ambi-

ent temperature conditions.

Battery Temperature Sensing (TS)

TS Pin Open Detection

Automatic Recharge Sequencing

Automatic Trickle Charge for Battery Pre-

Conditioning (no trickle charge option available)

Full Battery Charge Auto Turn-Off / Sleep

Mode / Charge Termination

Battery charge state is continuously monitored for

fault conditions. In the event of an over-current,

over-voltage, short-circuit, or over-temperature

condition, the device will shut down automatically,

thus protecting the charging device, control sys-

tem, and the battery under charge. A status mon-

itor output pin is provided to indicate the battery

charge status by directly driving an external LED.

An open-drain power source detection output is

provided to report the power supply status.

•

1µA Max. Shutdown Current

Over-Voltage and Over-Current Protection

Emergency Thermal Protection

Power On Reset and Soft Start

2.2x2.2mm STDFN-10 (AAT3863-2 and -3)

and QFN33-16 (AAT3683-4) Packages

The AAT3683 is available in the Pb-free, thermally-

enhanced, space-saving 2.2x2.2mm 10-pin STDFN

(AAT3683-2 and -3) and 16-pin QFN33 (AAT3683-4)

packages and is specified for operation over the

-40°C to +85°C temperature range.

Applications

•

BluetoothHeadsets, Headphones, Accessories

Cellular Phones

Digital Still Cameras

MP3, Portable Music, and Portable Media

Players

Personal Data Assistants (PDAs) and

Handheld Computers

•

Typical Application

Other Li-Ion Battery-Powered Devices

ENABLE

VIN

BATT+

VIN

BAT

C_IN

C_BAT

C_IN

C_BAT

R_T

BATT-

TERM

AAT3683-4

R_TERM

AAT3683-2

R_TERM

STAT1

TEMP

STAT

ADPP#

TEMP

STAT2

ISET

Battery

Pack

ISET

C_T

GND

R_SET

Battery

Pack

C_T

GND

R_SET

3683.2007.06.1.0

12 3 4 5 6 7...24

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