August 23, 2012 – Intersil, a global leader in the design and manufacture of high-performance analog and mixed-signal semiconductors, today announced the introduction of a backlight LED driver that operates from the low input voltages of single-cell Li-ion batteries. The new ISL9769x series delivers high efficiency with ultra-low quiescent current, maximizing battery life in smartphones, tablets, Ultrabooks, and notebooks.

The ISL97692/3/4A series of LED drivers offer a minimum input current of just 2.4 V and a standby current of 0.8 mA, maximizing the limited capacity of lithium-ion batteries in portable devices. The ISL97692 integrates four channels with up to 40 mA, while the ISL97693 and ISL97694A offer six channels with up to 30 mA.

Featuring output voltage phase shifting, the product maximizes efficiency during PWM dimming while simultaneously increasing the effective output current frequency and eliminating noise. Furthermore, when operating from a single-cell lithium-ion battery, the driver requires no input current beyond the battery, reducing board size and the number of required components.

Product Features and Details
• Provides 90% efficiency at 3.7V input and 6-parallel, 5-series LED configuration at 20mA/LED
• 0.8mA supply current and phase-shift PWM dimming maximize energy efficiency and battery life
• Provides a minimum input voltage of 2.4 V to operate from a single-cell lithium-ion battery while reducing component count
• Wide dimming range with a low 0.025% duty cycle at 5 kHz frequency
• Phase shift effectively increases the dimming frequency by the number of channels, allowing ultrasonic PWM dimming with 10-bit dimming resolution.

Price and sales information
The ISL97692 and ISL97693 are currently available in a 16-lead TQFN package, and the ISL97694A is available in a 20-lead TQFN package. Pricing starts at $1.20 for quantities of 1,000 units. For detailed product information, please visit the link below.
- ISL97692: http://www.intersil.com/products/ISL97692
- ISL97693: http://www.intersil.com/products/ISL97693
- ISL97694: http://www.intersil.com/products/ISL97694