描述 Description

The AAT3681 BatteryManager? is a member of AnalogicTech's Total Power Management IC? (TPMIC?) product family. This product is a highly integrated single cell lithium-ion/polymer battery charger IC, designed to operate from a DC power source or USB port to an input voltage of 7.5V.?It requires just one external component.
The AAT3681 precisely regulates battery charge voltage and current for 4.2V (4.375V option) lithium-ion/polymer battery cells. When charged from an AC adapter or USB port, the battery charging current can be set by an external resistor up to 300mA.
Battery charge state is continuously monitored for fault conditions. In the event of an over-voltage, short-circuit, or over-temperature failure, the device will automatically 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 AAT3681 is available in a Pb-free, thermally-enhanced, space-saving 8-pin 2.0x2.1mm SC70JW package and is specified for operation over the -40°C to +85°C temperature range.Please note: AAT3681IJS-4.2-T1 is being discontinued and is not recommended for new designs.

特性 Features

·USB or AC Adapter System Power Charger
·Programmable from 15mA to 300mA
·VIN Range: 4.0V to 6.5V
·High Level of Integration With Internal:
·Charging Device
·Reverse Blocking Diode
·Automatic Current Sensing
·Automatic Recharge Sequencing
·Full Battery Charge Auto Turn-Off/Sleep Mode/Charge Termination
·Shutdown Current <1μA
·Automatic Trickle Charge for Battery Pre-Conditioning
·Over-Voltage and Emergency Thermal Protection
·Power On Reset and Soft Start
·LED Status Pin
·8-Pin 2.0x2.1mm SC70JW Package

簡介

AAT3681屬于集成電路（IC）的電池充電器。由制造生產(chǎn)的AAT3681電池充電器電池充電器 PMIC（電源管理集成電路）是元器件級產(chǎn)品系列，用于在電子設(shè)備中實(shí)現(xiàn)電池充電控制和充電管理功能。這些器件主要根據(jù)電池化學(xué)及其設(shè)計(jì)用于的電池?cái)?shù)量來分類，可提供電化學(xué)電池和超級電容器安全充電所必需的電流或電壓調(diào)節(jié)和監(jiān)視功能。