Intersil's new high integrated backlight LED driver achieves the industry's best multichannel current matching and tuning accuracy

Global High Performance Analog and mixed signal semiconductor design and manufacturing leader in Intersil company (NASDAQ Global Trading Code: ISIL) today announced the launch of its latest LED backlight drive - ISL97682, ISL97683 and ISL97684. These devices have high degree of performance, the best current adjustment precision and channel, very suitable for driving the intelligent mobile phone, tablet computer, Internet and other portable electronic products of small and medium size LCD backlight screen multi channel LED.

ISL97682, ISL97683 and ISL97684 are compact, 2 3, 4 LED drive, the input voltage in the range of 4V to 26.5V, the output voltage up to 45V. In the bootstrap mode, the driver can also work under the low voltage of 3V, and output voltage up to 26.5V, can support a single lithium battery direct power supply.

Device can automatically switch between PWM and PFM mode, ensure to achieve the best efficiency of input voltage and output load range (up to 90%). The current accuracy of all devices is 1.5%, the channel to channel current matching degree of 0.7%, is a very good consistency in the application of the 6 inch to 15 inch TFT LCD backlight solution. Its high performance and multi functionality makes this product also suitable for industrial and automotive applications display devices.

Function and specification

The minimum 3V supply voltage (with bootstrap mode) means that the 5V bias power supply is not required to achieve very high efficiency

Optional inter channel phase shifting technology can reduce the noise interference of video and audio

0.7% channel to channel current matching to ensure a uniform backlight brightness

Dimming frequency up to 30kHz can make the dimming frequency higher than the audio range, which can eliminate the audio noise

The open circuit, short circuit, over voltage and over temperature protection of each series of LED enables the chip to work in a variety of environments without damage

Pricing and supply

ISL97682/3/4 using 3mm x 3mm 16 pin TQFN package, 1000 orders for $1.35.

For more information on ISL97682 please visit the http://www.intersil.com/products/deviceinfo.asp pn=ISL97682?

For more information on ISL97683 please visit the http://www.intersil.com/products/deviceinfo.asp pn=ISL97683?

For more information on ISL97684 please visit the http://www.intersil.com/products/deviceinfo.asp pn=ISL97684?

About Intersil

Intersil, mixed signal and power management semiconductor design and manufacturing leader in the field of simulation and high performance. The company's products are mainly used in the fastest growing markets such as communications, computing, consumer goods and industry.

For more information about Intersil, or learn how to become a member of our team, please visit the company's Web site: www.intersil.com.