ON Semiconductor Introduces Optimized Low Power LED Driver for Button Battery Powered Backlight

Ultra-small CAT3661 delivers up to 92% performance, extending battery life for a variety of ultra-low power portable handheld LED applications

ON Semiconductor (Nasdaq: ONNN), the premier supplier of high-performance, high-performance silicon solutions for green electronics, introduces the new CAT3661 single-channel Quad-ModeTM LED driver for ultra-low Power LED applications such as portable handheld medical devices.

Anthony Russel, director of LED power products at ON Semiconductor, said: "High performance and small size are often the top priorities for portable electronics designers. The CAT3661 low power Quad-ModeTM LED driver utilizes proprietary technology. Reflecting these requirements, and in conjunction with the customer's small form factor and long battery life, we are introducing new battery-powered product designs that meet the needs of end users."

The CAT3661 uses a patented architecture that integrates fault protection and fault diagnosis to drive a single LED backlight at up to 5 mA. Soft start current limiting and short circuit protection make this new component ideal for use in coin cell powered devices. Typical applications include low power liquid crystal display (LCD) backlights and a wide range of portable handheld backlights including medical devices.

The CAT3661 is available in a TQFN-16 package of only 3 mm x 3 mm x 0.8 mm (height), providing a useful solution for engineers looking for new designs with limited board space. This new component provides low noise input chopping and constant switching frequency, enabling the use of small external ceramic capacitors, further saving space and total system cost. The four-mode charge pump supports a wide range of input voltages from 2.0 V to 5.5 V. It also provides the CAT3661 with peak performance levels of up to 92%, up to 10% higher than traditional high-performance 1.5x three-mode charge pumps. At full load, this component has a typical quiescent current of only 150 μA in all operating modes, with zero current shutdown, which promotes reduced power consumption and ensures long battery life of the application.

Package and price

The CAT3661 is available in a Pb-free TQFN-16 package and is priced at $0.86 each in 10,000 units.

About ON Semiconductor

ON Semiconductor (Nasdaq: ONNN) is the premier supplier of high performance, high performance silicon solutions for green electronics. The company's product portfolio includes power and signal management, logic, discrete and custom components to help customers solve their unique design challenges in automotive, communications, computing, consumer electronics, industrial, LED lighting, medical, military/aerospace and power applications. Fast and cost-effective. The company operates world-class, value-added supply chains and networks in key markets in North America, Europe and Asia Pacific, including manufacturing, sales offices and design centers. For more information, please visit http://