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AAT3681AIJS-4.2-3-T1 PDF预览

AAT3681AIJS-4.2-3-T1

更新时间: 2024-01-07 10:10:33
品牌 Logo 应用领域
ANALOGICTECH 电源电路电池电源管理电路
页数 文件大小 规格书
17页 204K
描述
500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

AAT3681AIJS-4.2-3-T1 技术参数

生命周期:Obsolete包装说明:,
Reach Compliance Code:unknown风险等级:5.72
Is Samacsys:NBase Number Matches:1

AAT3681AIJS-4.2-3-T1 数据手册

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AAT3681A  
500mA USB Port or AC Adapter  
Lithium-Ion/Polymer Battery Charger  
BatteryManager  
General Description  
Features  
The AAT3681A BatteryManager is an integrated sin-  
gle 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.  
USB or AC Adapter System Power Charger  
— Programmable from 15mA to 500mA  
4.0V ~ 7.5V Input Voltage Range  
High Level of Integration with Internal:  
— Charging Device  
— Reverse Blocking Diode  
Automatic Current Sensing  
The AAT3681A 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 cur-  
rent can be set by an external resistor up to 500mA.  
Automatic Recharge Sequencing  
Full Battery Charge Auto Turn Off/Sleep  
Mode/Charge Termination  
Shutdown Current <1µA  
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 bat-  
tery under charge. A status monitor output pin is  
provided to indicate the battery charge status by  
directly driving an external LED.  
Automatic Trickle Charge for Battery Pre-  
Conditioning (AAT3681A-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  
The AAT3681A 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.  
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  
Typical Application  
Adapter/USB Input  
ADP  
BATT+  
BAT  
C
AAT3681A  
BATT-  
Battery  
Pack  
STAT  
EN  
Enable  
ISET  
GND  
RSET  
3681A.2007.10.1.2  
1

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