Alpha and Omega Semi's AlphaDFN solution enhances mobile battery protection

Date
02/05/2015

 PDF

AOS's new AlphaDFN MOSFETs series address battery pack protection

Alpha and Omega Semiconductor, a designer, developer and
global supplier of a broad range of power semiconductors and power ICs,
today announced the release of two new MOSFETs optimized for battery
protection applications. The AOC2804 and AOC2806 are the latest
additions to the AlphaDFN(TM) package portfolio which takes chip scale
packaging to the next level. These devices are specifically targeting
one and two cells portable battery pack applications such as those
found in the latest smart phones, tablets, media players and wearable
devices.

In mobile battery pack applications the protection MOSFET controls
charging and discharging of the battery, and is critical to battery
life and battery safety. The new generation of devices is optimized
with AOS's proprietary power trench technology, which minimizes RSS
(source- to-source resistance) in a common-drain MOSFET configuration.
For the same dimensions, these new devices can deliver 20% lower
resistance, which makes them ideal for conserving battery life.
AOC2804, 1.5mm x 1.5mm, is aimed at 22 m? max RSS level applications
such as feature phones and wearable devices. AOC2806, with slightly
larger dimension at 1.7mm x 1.7mm, is a 18 m? max RSS device that is
best-suited for smart phones. When used in parallel, either device can
significantly reduce conduction loss by offering <10 m? RSS.

In addition to the silicon technology, the AOC2804 and AOC2806 feature
AOS's proprietary AlphaDFN packaging technology encapsulating silicon
in a protective molding compound. The resulting product still provides
an ultra-thin 0.3mm solution, while providing a more robust structure
to solve die chipping and placement issues associated with standard CSP
products.

"AOS's new AlphaDFN MOSFETs series deliver a superior solution for
battery pack protection. Their low RSS and small chip-scale footprint
help designers enhance battery life while saving precious board space.
Additionally, the extra layer of protection in the proprietary AlphaDFN
package enhances mechanical robustness and reliability," said George
Feng, Senior Manager for Product Marketing.

AOC2804 and AOC2806 are all Halogen-Free and RoHS compliant.

Availability
All devices are immediately available in production quantities with a
lead-time of 12-14 weeks. * The unit price is for 1,000 pieces.

Alpha and Omega Semiconductor

Related articles

 Switchboard Enhances Safety and Reduces Downtime
 ERNI Reduces Lead Times for Multiple Connector Product Lines
 Mouser Electronics Now Stocking Qorvo's Front-End Modules