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AAT3680 Datasheet(Fiches technique) 1 Page - Advanced Analog Technology, Inc.

Numéro de pièce AAT3680
Description  Lithium-Ion/Polymer Linear Battery Charge Controller
Télécharger  18 Pages
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Fabricant  AAT [Advanced Analog Technology, Inc.]
Site Internet  http://www.aatech.com.tw
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AAT3680
Lithium-Ion/Polymer
Linear Battery Charge Controller
3680.2006.03.1.6
1
BatteryManager
Typical Application
Q1
SMA
B34DLA
FZT968
AAT3680
C2
1
µF
C3
10
µF
R2
1k
RSENSE
0.2
R1
1.9k
BATT+
BATT-
TEMP
RT1
RT2
VP
Battery
Pack
DRV
CSI
VP
VP
VSS
STAT
TS
BAT
T2X
LED1
General Description
The AAT3680 BatteryManager is a member of
AnalogicTech's Total Power Management IC™
(TPMIC™) product family. This device is a lithium-
ion/polymer battery charge and management IC,
specifically designed for compact portable applica-
tions.
The AAT3680 precisely regulates battery
charge voltage and charge current, and is capable
of two trickle charge current levels controlled by
one external pin. Battery charge temperature and
charge state are carefully monitored for fault con-
ditions. In the event of an over-current, short-cir-
cuit, or over-temperature failure, the device will
automatically shut down, protecting the charging
device and the battery under charge. A battery
charge state monitor output pin is provided to indi-
cate the battery charge status through a display
LED. The battery charge status output is a serial
interface which may also be read by a system
microcontroller.
The AAT3680 is available in a Pb-free, 8-pin MSOP
or 12-pin TSOPJW package, specified over the
-20°C to +70°C temperature range.
Features
Input Voltage Range: 4.5V to 7V
1% Accurate Preset Voltages: 4.1V, 4.2V
Low Operation Current, Typically 0.5mA
Programmable Charge Current
Automatic Recharge Sequencing
Battery Temperature Monitoring
Deep Discharge Cell Conditioning
Fast Trickle Charge Option with Thermal
Over-Ride
Full Battery Charge Auto Turn-Off / Sleep Mode
Over-Voltage, Over-Current, and Over-
Temperature Protection
Power On Reset
LED Charge Status Output or System
Microcontroller Serial Interface
Temperature Range: -20°C to +70°C
8-Pin MSOP or 12-Pin TSOPJW Package
Applications
Cellular Phones
Desktop Chargers
Personal Digital Assistants (PDAs)
USB Chargers




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