AAT3684IOQ-4.2-1-T1 Datasheet

IC型號：
AAT3684IOQ-4.2-1-T1
PDF描述：
500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Cha...
文件大小：
280.09KB
PDF頁數(shù)：
17頁
芯片廠家：
ANALOGICTECH

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PRODUCT DATASHEET

AAT3684

BatteryManager

500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

Features

鈥?USB or AC Adapter System Power Charger

鈻?/div>

Programmable from 15mA to 500mA

鈥?4.0V ~ 6.5V Input Voltage Range

鈥?High Level of Integration with Internal:

鈻?/div>

Charging Device

鈻?/div>

Reverse Blocking Diode

General Description

The AAT3684 BatteryManager is an integrated single cell

lithium-ion/polymer battery charger IC, designed to oper-

ate from a DC power source or USB port up to an input

voltage of 6.5V. It requires just one external component.

The AAT3684 precisely regulates battery charge voltage

and current for 4.2V (4.375V option) lithium-ion/poly-

mer battery cells. When charged from an AC adapter or

USB port, the battery charging current can be set by an

external resistor up to 500mA.

Battery charge state is continuously monitored for fault

conditions. In the event of an over-voltage, short-cir-

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

matically shut down, thus protecting the charging device,

control system, and the battery under charge. A status

monitor output pin is provided to indicate the battery

charge status by directly driving an external LED.

The AAT3684 is available in a Pb-free, thermally

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

age and is specified for operation over the -40擄C to

+85擄C temperature range.

鈥?Automatic Current Sensing

鈥?Automatic Recharge Sequencing

鈥?Full Battery Charge Auto Turn Off/Sleep Mode/Charge

Termination

鈥?Shutdown Current <1渭A

鈥?Automatic Trickle Charge for Battery Pre-Conditioning

(AAT3684-1 is No Trickle Charge Option)

鈥?Over-Voltage and Emergency Thermal Protection

鈥?Power On Reset and Soft Start

鈥?LED Status Pin

鈥?STDFN2.2x2.2-10 Package

Applications

鈥?/div>

Bluetooth

廬

Headsets

DECT Headsets

Digital Still Cameras

MP3, Portable Music, and Portable Media Players

Personal Data Assistants (PDAs)

Wrist Watches

Other Lithium-Ion/Polymer Battery-Powered Devices

Typical Application

Adapter/USB Input

ADP

BAT

BATT+

AAT3684

Enable

STAT

ISET

GND

BATT-

Battery

Pack

SET

3684.2007.12.1.2

www.analogictech.com

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AAT3684IOQ-4.2-1-T1 Datasheet

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