SOURCE: Intersil

May 24, 2007 09:31 ET

Intersil Delivers the World's First Integrated Cell Balancing and Overcurrent Protection ICs for Multi-Cell Li-Ion Battery Packs

MILPITAS, CA -- (MARKET WIRE) -- May 24, 2007 -- Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today announced the release of the single-chip ISL9208 and ISL9216/17 chipset solution for cell balancing and overcurrent protection. These devices are the industry's first integrated analog front ends for cell balancing and overcurrent protection in multi-cell li-ion battery packs.

These truly unique devices can replace up to 17 FETs, 12 diodes, 53 resistors and 31 capacitors in some designs and will simplify designs for multi-cell battery powered packs for applications ranging from power tools to hybrid automotive vehicles. This advancement further establishes Intersil as the leader in li-ion charging and protection ICs. Already the power management solution of choice in four of the world's top five cell phone OEMs, Intersil is the recognized leader in single-cell li-ion battery charging and protection ICs.

The ISL9208 single chip and ISL9216/17 chipset perform cell balancing and protect battery packs against high current conditions. The cell balancing allows the microcontroller to keep cell capacities matched to increase the battery pack's operating time and extend battery life. The built-in 3.3V voltage regulator reduces component count while providing power to the microcontroller. The devices provide critical protection through the ability to detect short circuits and overcurrent conditions and automatically shut down the power FETs when necessary.

The ISL9208 is recommended for 5 to 7 cell (18V to 28V) battery packs and the ISL9216/17 chipset is recommended for 7 to 12 cell (28V to 50V) battery packs. The ISL9216 and ISL9217 chipset solution extends the monitoring capability to higher voltage cell packs by establishing a communication link between an I2C interface and a level shifter of the two chips.

About Intersil's Power Management Portfolio

Intersil's high-performance analog ICs provide innovative power management solutions for applications in the computing, communications, peripherals, display, networking, telecommunications, industrial, instrumentation and battery-powered products markets. Intersil is a leading supplier of PWM controller ICs with over two billion units shipped. Intersil offers a broad portfolio of power management ICs, including single and multiple output switching regulators, integrated FET DC/DC controllers, battery management ICs, hot plug controllers and power MOSFET drivers. To learn more, visit Intersil's Power Management page at

Pricing and Availability

The ISL9208 is available in a 32-lead, 5mm x 5mm Pb-free QFN configuration starting at $2.33 each in quantities of 100 to 1,000. The ISL9216 is available in a Pb-Free 32-lead, 5mm x 5mm QFN package starting at $3.08 each in quantities of 100 to 1,000. The ISL9217 is available in a 4mm x 4mm Pb-Free 24-lead QFN configuration starting at $3.01 each in quantities of 100 to 1,000.

NOTE: The ISL9216 and the ISL9217 are designed as a chip set. Although they are priced individually, package pricing may be obtained by contacting Intersil.

Note to editors: To view high-resolution downloadable photos of the ISL9216 and the ISL9217, visit Intersil's photo room at:

About Intersil

Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, other handheld systems, and notebooks. Intersil's product families address power management functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high-performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and radiation-hardened applications. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at

Contact Information

  • Media Contact:
    Rob Purdie
    Senior Marketing Representative
    Intersil Corporation
    (321) 724-7688
    Email Contact