SOURCE: Intersil

Intersil

August 14, 2012 11:00 ET

Intersil's Backlight LED Drivers Improve Energy Efficiency and Increase Battery Life of Tablets, Mobile Devices

ISL9769x Series Delivers Industry Leading 90% Efficiency

MILPITAS, CA--(Marketwire - Aug 14, 2012) - Intersil Corporation (NASDAQ: ISIL) today announced the newest family of backlight LED drivers that can operate from the low input voltage of a single cell Li-ion battery. The ISL9769x series features ultra-low quiescent current and high efficiency required to maximize battery life in the latest generation of smartphones, tablets and Ultrabook/notebook PCs.

With a minimum input voltage of just 2.4V, and quiescent current of only 0.8mA, the new ISL97692/3/4A series of LED drivers makes the most of the limited capacity of Li-Ion batteries in portable devices. The ISL97692 incorporates four channels with up to 40mA each, while the ISL97693 and ISL97694A provide six channels with up to 30mA each. All the drivers feature output current phase shifting which maximizes efficiency during PWM dimming and increases the effective output current frequency to eliminate audible noise. Additionally, when operating from a single cell Li-Ion battery, the drivers do not require any input voltage other than the battery, reducing board size and component count.

Features and Specifications

  • 90% efficient with 3.7V input, driving 6-parallel, 5-series LED configuration at 20mA/LED
  • 0.8mA supply current and phase shifted PWM dimming improve energy efficiency and extend battery life
  • 2.4V minimum input voltage allows operation from a single cell Li-ion battery and reduces component count
  • Wide dimming range down to 0.025% duty cycle at 5kHz frequency
  • Phase shifting multiplies the effective dimming frequency by the number of channels, permitting ultrasonic PWM dimming with 10-bit dimming resolution

Pricing and Availability
The ISL97692 and ISL97693 are available now in 16-lead TQFN packages. The ISL97694A is available in a 20-lead TQFN package. Prices start at $1.20 each in 1,000-unit quantities. For more information, please visit:

ISL97692 http://www.intersil.com/products/ISL97692
ISL97693 http://www.intersil.com/products/ISL97693
ISL97694 http://www.intersil.com/products/ISL97694

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About Intersil
Intersil Corporation is a leader in the design and manufacture of high-performance analog, mixed-signal and power management semiconductors. The company's products address some of the fastest growing markets within the industrial and infrastructure, personal computing and high-end consumer markets. For more information about Intersil or to find out how to become a member of our winning team, visit our website and career page at www.intersil.com.

Intersil and the Intersil logo are trademarks or registered trademarks of Intersil Corporation. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.