Active-Semi Announces Two New Cost Reduced Solutions for Low Power Applications Such as iPhone or iPad AC Charger/Adapters
ACT364 and ACT365 Are New Universal-input AC/DC Off-line Controllers Based on NPN Technology
SAN JOSE, – June 1, 2011 – Active-Semi announced today the release of two additions to their family of charger and adapter solutions. The ACT364, released last year, is joined by the ACT365. Each provides an AC charger solution using NPN (negative-positive-negative) switching with Suitable Operation Frequency up to 85 kHz.
Most similar products on the market today are based on the MOSFET (metal-oxide-semiconductor field-effect transistor) technology, which is significantly more expensive. Utilizing a unique NPN drive technique, Active-Semi NPN solutions achieve 2% higher efficiency in 5V/2.1A solutions compared to traditional NPN based products.
“Active-Semi has focused on developing solutions using NPN, in low power applications, since 2005. In charger applications, low cost NPN, together with low component count, make these devices an attractive low total cost solution. Customers are seeing total system costs savings of around 10% versus designs using MOSFET components”
The ACT364 and ACT365 ensure safe operation with complete protection against all fault conditions. Built-in protection circuitry is provided for output short-circuits, output over-voltage, line under-voltage, and over temperature conditions.
ACT364 and ACT365 ActivePSRs™ are optimized for high performance, cost-sensitive applications and utilize Active-Semi’s proprietary primary-side feedback architecture to provide accurate constant voltage, constant current (CV/CC) regulation without the need of an opto-coupler or reference device. Integrated line and primary inductance compensation circuitry provides accurate constant current operation despite wide variations in line voltage and primary inductance. Integrated output cord resistance compensation enhances output accuracy. The ACT364 and ACT365 achieve excellent regulation and transient response, yet require less than 100mW of standby power.
The compact ACT364 comes in 2W to 6.3W charger applications in 6-pin SOT23-6 packages. The ACT365 is optimized for compact size in 6W to 12.5W adapter applications. It is available in SOP-8 packages. Pricing on request.
Active-Semi’s ActivePMU™ is a patented, revolutionary technology that leverages Active-Semi’s large and growing IP portfolio to produce targeted, high-performance solutions for the industry’s most challenging portable power and system management problems. ActivePMUs™ are being deployed throughout an increasingly wide range of portable applications. Active-Semi’s ActivePSR™ family of digital Primary-Side Regulation (PSR) controllers simplify today’s AC/DC designs for charger, adapter and LED lighting with low component-count, and exceed all green power efficiency or standby power standards.
Please visit www.qorvo.com/how-to-buy for additional contact and purchasing information.
About Qorvo
Qorvo (Nasdaq: QRVO) makes a better world possible by providing innovative Radio Frequency (RF) solutions at the center of connectivity. We combine product and technology leadership, systems-level expertise and global manufacturing scale to quickly solve our customers' most complex technical challenges. Qorvo serves diverse high-growth segments of large global markets, including advanced wireless devices, wired and wireless networks and defense radar and communications. We also leverage unique competitive strengths to advance 5G networks, cloud computing, the Internet of Things, and other emerging applications that expand the global framework interconnecting people, places and things. Visit www.qorvo.com to learn how Qorvo connects the world.
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