AAT3693 Advanced Analogic Technologies, Inc., AAT3693 Datasheet
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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:
Part Number:
AAT3693IDH-AA-T1
Manufacturer:
ANALOGIC
Quantity:
5 000
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
TM
VIN
ON/OFF
1.6A Lithium-Ion/Polymer Battery Charger in 2.2x2.2 TDFN
C
T
w w w . a n a l o g i c t e c h . c o m
VIN
EN
GND
CT
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
TS
Charging Device
Reverse Blocking Diode
Current Sensing
R
SET
C
Temp
BAT
BAT+
R
PRODUCT DATASHEET
TERM
Battery
Pack
AAT3693
1