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ON Semiconductor Introduces Current Mirror with Switch Controller and SENSEFET® Power MOSFETs  Chinese Japanese Korean

System level power management solution supports integrated, low power current monitoring for portable computers and networking equipment

CAT2300 current mirror with switch controller, and power MOSFETs

PHOENIX, Ariz. – Aug. 18, 2011 – ON Semiconductor (Nasdaq: ONNN), a premier supplier of high performance silicon solutions for energy efficient electronics, has introduced the CAT2300 current mirror with switch controller, that when combined with the company’s NTMFS4833NS or NTMFS4854NS SENSEFET Power MOSFET devices, provides a compact, efficient solution for current monitoring.

This combination of new devices enables system level power management in applications such as portable computers and networking equipment.

Exact control and matching of the SENSEFET’s SENSE output with the KELVIN voltage leads by the CAT2300 ensures accurate current monitoring over the SENSEFET’s entire operating range.

The CAT2300 offers a single chip alternative to a discrete circuit approach and is able to provide sensorless precision current measurement of 0.9 volt (V) to 5 V power supply rails. The new device performs current mirroring to 70 milliamperes (mA) – which equates to 25 amperes (A) of measured current - and integrates logic level ON /OFF control of the power MOSFET and its own circuitry, reducing power consumption to virtually zero. A soft-start function is also included. Current consumption is less than one microampere (µA) in shutdown mode supporting long life in battery powered applications. Housed in a space saving, low profile 2 mm x 3 mm TDFN-8 package, the CAT2300 is suitable for use over the full -40 ºC to +85 ºC operating temperature range.

The NTMFS4833NS and NTMFS4854NS are 30 V, N-Channel SENSEFET MOSFETs that provide lossless current sensing with improved accuracy. They also combine low on-resistance, low capacitance, and low gate charge to minimize conduction, driver, and switching losses. The NTMFS4833NS and NTMFS4854NS are rated at 26 A and 24 A respectively.

“Replacing multiple component discrete solutions with integrated devices can bring benefits such as PCB real estate savings, lower power consumption and enhanced reliability,” said Paul Leonard, vice president of Power MOSFETs at ON Semiconductor. “The CAT2300, which has been optimized for use with our SENSEFET devices, supports a simple, compact, and highly efficient solution for accurate current monitoring in a wide range of fixed and portable equipment applications.”

Packaging and Pricing
The CAT2300 is offered in a Pb-free, RoHS-compliant TDFN-8 package, and is priced at $0.56 per unit in 3,000 unit quantities. The NTMFS4833NS and NTMFS4854NS are offered in a Pb-free, RoHS-compliant SO-8 Flat Lead package, and are priced between $0.87 - $1.60 per unit in 1,500 unit quantities.

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オン・セミコンダクターについて
オン・セミコンダクター(Nasdaq: ONNN)は、グローバルな省エネルギー実現のためデザインエンジニアを強化し、エネルギー効率のイノベーションをリードしてまいります。オン・セミコンダクターのエネルギー効率の高い、パワー&信号制御、ロジック、ディスクリートおよびカスタム・ソリューションの包括的なポートフォリオは、自動車、通信、コンピューティング、民生機器、産業用機器、LED 照明、医療機器、軍事/航空宇宙および電源アプリケーションにおける特有な設計上の課題を解決します。オン・セミコンダクターは、北米、ヨーロッパ、およびアジア太平洋地域の主要市場で、対応力、信頼性に優れた、世界クラスのサプライ・チェーンと品質保証体制、および製造工場、営業所、デザイン・センターのネットワークを稼働させています。詳細については、http://www.onsemi.jpをご覧ください。

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