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AAT3681 Datasheet PDF - Analog Technology Inc

Part NameDescriptionManufacturer
AAT3681 USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger Analog-Technology
Analog Technology Inc Analog-Technology
Other PDF  no available.
AAT3681 Datasheet PDF : PDF DOWNLOAD   
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General Description
The AAT3681 BatteryManager is an integrated single cell lithium-ion/polymer battery charger IC, designed to operate from a DC power source or USB port up 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.

Features
• USB or AC Adapter System Power Charger
▪ Programmable from 15mA to 300mA
• 4.0V ~ 7.5V Input Voltage Range
• 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 (AAT3681-1 is No Trickle Charge Option)
• Over-Voltage and Emergency Thermal Protection
• Power On Reset and Soft Start
• LED Status Pin
• 8-Pin 2.0x2.1mm SC70JW Package

Applications
• Bluetooth® 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

 

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