ST decided to do something about the tons of battery chargers tossed out with portable devices from cell phone handsets through personal media players. ST's ESDA8V-1MX2 is a smaller-dimension circuit protection device that enables safer use of universal chargers. The device features a 30% higher surge protection housed in a 55% smaller outline.
In 2010, 1 billion cell phone handsets are expected to be shipped, prompting initiatives such as the Chinese government's requirement for mobile devices to provide a USB port for charging. Dedicated chargers are typically useless when the accompanying portable devices reach end of life--which is extremely fast in this market segment. Few are recycled, most tossed incorrectly, or saved, fulfilling no purpose.
Although universal chargers reduce this burden, portable device designers must improve internal protection against the risks presented by chargers of unknown quality. The ESDA8V2-1MX2 absorbs surges containing up to 500 Watts peak pulse energy, a level of protection which is 30% higher than the current most popular surge protector. Its 55% smaller footprint, measuring just 1.0 x 1.45mm, provides space savings for designers to implement extra functions or further miniaturize the device. The protection device also has a thin profile of 0.55mm, compared to 0.7mm or 1.0mm for most alternative devices. Finally, it provides a 50% reduction in leakage current, which reduces drain on the battery for improved performance and longer recharge intervals.
The ESDA8V2-1MX2 is available immediately in sample quantities or for full production, priced at $0.11 for 10,000 pieces.
More on battery chargers on Mobile Handset DesignLine