SOURCE: Intersil

October 15, 2008 09:59 ET

Intersil Delivers World's Most Highly-Integrated Battery Charger for Cell Phones, Bluetooth Devices and Portable Media Players

ISL9222A Combines Charger, Comparator and Logic on a Single Device, Providing Maximum Overvoltage Protection With Minimum Footprint

MILPITAS, CA--(Marketwire - October 15, 2008) - Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today announced the ISL9222A, a battery charger innovation designed to detect auxiliary and external power connections in mobile devices.

The ISL9222A is a high input, single cell, Li-Ion battery charger IC that incorporates a charger and digital logic (OR gate) into a single chip. This compact package enables customers to create small footprint solutions. The ISL9222A's high level of integration and small size make it ideal for applications that require overvoltage protection, test fixture power detection or reverse blocking.

The ISL9222A accepts an input voltage up to 28V, but is disabled when the input voltage exceeds the overvoltage protection threshold (typically 7.2V) in order to prevent excessive power dissipation. The 28V rating eliminates the overvoltage protection circuit required with a low input voltage charger.

The charge current is user-programmable with an external resistor. When the battery voltage is lower than 2.55V, the charger preconditions the battery with 20% of the programmed charge current. The ISL9222A also features a thermal foldback function that protects the charger from over-temperature conditions.

The ISL9222A also features voltage accuracy is 1%. An indication pin (PPR) allows simple interface to a microprocessor or LED. When there is no adapter attached to the charger or when the charger is disabled, the ISL9222A draws less than 1µA leakage current from the battery.

Pricing and Availability

The ISL9222A is available now in 8-lead TDFN packages, priced at $1.40 each in 1,000-unit quantities.

For more information on the ISL9222A, please go to,1477,ISL9222A,0.html

Note to editors: To view a high-resolution downloadable photo of the ISL9222A, visit Intersil's photo room at: visit Intersil's photo room at:

About Intersil's Power Management Portfolio

Intersil is a recognized global leader in power management solutions, offering a broad portfolio of products that simplify a variety of power designs. Intersil's family of power management ICs ranges from building blocks such as charge pumps, to highly-integrated, multiple-output and multiphase PWMs, to quad-voltage hot-swap controllers. As a leading supplier of PWM controller ICs with over two billion units shipped, Intersil addresses a broad range of power management needs for applications that include computing, communications, peripherals, display, networking, telecommunications, industrial, instrumentation and battery-powered products. To learn more, visit Intersil's Power Management Web site 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