AAT3693 Advanced Analogic Technologies, Inc., AAT3693 Datasheet

AAT3693

Manufacturer Part Number

AAT3693

Description

1.6a Lithium-ion/polymer Battery Charger In 2.2x2.2 Tdfn

Manufacturer

Advanced Analogic Technologies, Inc.

Datasheet

1.AAT3693.pdf (23 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AAT3693IDH-AA-T1

Manufacturer:

ANALOGIC

Quantity:

5 000

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General Description

The AAT3693 BatteryManager is a highly integrated sin-

gle-cell lithium-ion/polymer (Li-Ion) battery charger

which operates from a USB port, or an AC adapter input

up to 7.5V input voltage. The AAT3693 precisely regu-

lates 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 1.6A. Digital Thermal Loop

Control maintains the maximum possible battery charg-

ing current for the given set of input to output power

dissipation and ambient temperature conditions.

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 charg-

ing device, control system, and the battery under

charge. A status monitor output pin is provided to indi-

cate the battery charge status by directly driving an

external LED. An open-drain power source detection out-

put is provided to report the power supply status. With

the "No-Battery Detection" circuit integrated, the status

LEDs indicate that the battery is not present or not prop-

erly installed.

The AAT3693 is available in the Pb-free, thermally

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

ages and is specified for operation over the -40°C to

+85°C temperature range.

Typical Application

BatteryManager

3693.2009.04.1.1

VIN

ON/OFF

1.6A Lithium-Ion/Polymer Battery Charger in 2.2x2.2 TDFN

w w w . a n a l o g i c t e c h . c o m

VIN

GND

STAT1

STAT2

AAT3693

Features

• USB or AC Adapter System Power Charger

• Programmable from 100mA to 1.6A max

• 4.0V ~ 7.5V Input Voltage Range

• High Level of Integration with Internal:

• Digitized Thermal Regulation

• Charge Current Programming (ISET)

• Charge Termination Current Programming (TERM)

• Charge Timer (CT)

• Battery Temperature Sensing (TS)

• No-Battery Detection

• TS Pin Open Detection

• Automatic Recharge Sequencing

• Full Battery Charge Auto Turn Off/Sleep Mode/Charge

• Shutdown Current < 6μA

• Automatic Trickle Charge for Battery Preconditioning

• Over-Voltage and Over-Current Protection

• Emergency Thermal Protection

• Power On Reset and Soft Start

• 2.2x2.2 TDFN Package

Applications

• Bluetooth™ Headsets

• Cell Phones

• Digital Still Cameras

• MP3 Players

• Personal Data Assistants (PDAs)

• Other Li-Ion Battery Powered Devices

TERM

ISET

▪

Termination

BAT

Charging Device

Reverse Blocking Diode

Current Sensing

SET

Temp

BAT

BAT+

PRODUCT DATASHEET

TERM

Battery

Pack

AAT3693

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