AnalogicTech Announces Broad Family of Compact USB/AC Battery Charger ICs |
| Advanced Analogic Technologies Inc. logo. (PRNewsFoto)
SAN FRANCISCO, CA USA | |||
Product Line Supports Charge Currents Up To 1A in Extremely Small Packages
SUNNYVALE, Calif., July 12 /PRNewswire-FirstCall/ -- Advanced Analogic
Technologies Incorporated (AnalogicTech) (Nasdaq: AATI), a developer of
power management semiconductors for mobile consumer electronic devices,
announced today a comprehensive line of USB/AC battery charger ICs for
portable systems operating off single-cell 4.2V (4.375V) Lithium
Ion/Polymer batteries. Integrating a wide array of features into a highly
compact footprint and requiring just a single external component, these new
devices offer complete USB/AC charging function in packages as small as 2.0
x 2.1 mm.
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"Designers of today's cellular handsets, Bluetooth headsets, MP3
players and digital cameras must offer comprehensive USB/AC charging
capability while sacrificing as little of their limited product footprint
as possible," said Siamak Bastami, product line director for AnalogicTech.
"By offering a wide array of choices from comprehensive solutions with
integrated digital thermal regulation to relatively basic alternatives with
automatic trickle charge and battery pre-conditioning options in extremely
compact packages, this product family enables the optimal solution in the
smallest footprint for their target market."
Integrated Digital Thermal Regulation
The AAT3683 offers the most comprehensive feature set in the new
product family. This highly integrated, single input USB/AC charger
supports programmable charge currents up to 1A. Operating off a voltage
input range of 4.0V to 6.5V, the AAT3683 integrates a charging device,
reverse blocking diode and current sensing to regulate battery charge
voltage and current for 4.2V (4.375V) Li-ion/polymer battery cells. The
battery charger IC includes a digital thermal regulation circuit developed
and patented by AnalogicTech which automatically reduces the charging
current when the internal temperature of the die exceeds a preset limit to
prevent the device from thermal shutdown. This feature helps minimize
charge time by maintaining the maximum possible battery charging current
for a given set of input to output, power dissipation and ambient
temperature conditions. The AAT3683 also adds an integrated charge timer
which automatically terminates charging functions if a defective battery
cell does not accept a charge over a preset period of time.
The AAT3684 is a single-input USB/AC adapter charger with charge
current programmable from 15 mA to 500 mA. The device offers automatic
trickle charge for battery pre-condition as a standard feature. The
optional AAT3684-1 version comes without the trickle charge capability.
The AAT3681A is a derivative of the AAT3681 previously announced by
AnalogicTech in April, 2006. Designed for space-constrained, portable
applications requiring up to 500 mA from either a USB or AC source, the
AAT3681A comes in a highly compact 2.0 x 2.1 mm SC70JW package. Unlike its
predecessor, this battery charger IC is also available with a variety of
trickle charge, active enable high and low, and charge termination
threshold current options.
Each of the new charger ICs offer overvoltage, short-circuit and over
temperature protection. The AAT3683 adds over-current protection.
Price and availability
All three devices are specified across the -40 degrees to +85 degrees C
temperature range. The AAT3681A is available in a Pb-free, 8-pin, 2 x 2.1
mm SC70JW package and sells for $0.81 in 1,000 piece quantities.
The AAT3683 is available in Pb-free, 10-pin 2.2 x 2.2 mm STDFN and
16-pin QFN-33 packages. It sells for $0.98 in 1,000 piece quantities. The
AAT3684 is available in a 10-pin 2.2 x 2.2 mm STDFN package and costs $0.92
in 1,000 piece quantities.
About AnalogicTech
Advanced Analogic Technologies Incorporated (AnalogicTech) is a
supplier of power management semiconductors for mobile consumer electronic
devices, such as wireless handsets, notebook and tablet computers,
smartphones, digital cameras, and digital audio players. The company
focuses its design and marketing efforts on the application-specific power
management needs of consumer, communications, and computing applications in
these rapidly evolving devices. AnalogicTech is headquartered in Sunnyvale,
California, with offices in Beijing, Hong Kong, Japan, Shanghai, Shenzhen,
South Korea, Sweden, UK, France, and Taiwan, as well as a worldwide network
of sales representatives and distributors. For more information, please
visit the AnalogicTech website: http://www.analogictech.com. (AnalogicTech
- G)
AnalogicTech and the AnalogicTech logo are trademarks of Advanced
Analogic Technologies Incorporated. All other brand and product names
appearing in this document are registered trademarks or trademarks of their
respective holders.
SOURCE Advanced Analogic Technologies
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CONTACT:
Headquarters Contact: Siamak Bastami of
Advanced Analogic Technologies, +1-408-737-4600,
sbastami@analogictech.com; Agency Contact: Matthew Quint of Quint
Public Relations, +1-650-599-9450, mquint@quintpr.com, for
Advanced Analogic Technologies
