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August 16, 2012

Intersil's ISL9769x Series Joins the Family of Backlight LED Drivers

Intersil Corporation (ISIL), a provider of a broad portfolio of display ICs that provide a complete analog solution for high performance LCD displays launched its new series of backlight LED drivers that can operate from the low input voltage of a single cell Li-ion battery.

The new 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. Also, the new ISL97692/3/4A series of LED drivers makes the most of the limited capacity of Li-Ion batteries in portable devices with a minimum input voltage of just 2.4V, and quiescent current of only 0.8mA.

The ISL97692 incorporates four channels with up to 40mA each, while the ISL97693 and ISL97694A provide six channels with up to 30mA each. 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.

Key features and specifications of the new series include; 90 percent 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 percent 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.

The ISL97692 and ISL97693 are available with immediate effect 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.

Intersil Corporation is a designer and manufacturer of analog, mixed-signal and power management semiconductors. Intersil's history and experience in the space and defense industries span almost six decades, beginning with the founding of Radiation, Inc. in 1950. Since then, virtually every satellite, shuttle launch and deep-space mission has included Intersil products. The company has 34 unique radiation-hardened and single-event effects hardened ICs onboard the latest space mission, Mars Science Laboratory (Curiosity).

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Edited by Amanda Ciccatelli

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