SUNNYVALE, CA--(Marketwire - February 23, 2009) - Leadis Technology,
Inc. (NASDAQ: LDIS), an analog and mixed-signal semiconductor
developer of LED drivers and Touch ICs for mobile consumer electronic
devices, today announced that its proprietary LED-Sense(TM)
Temperature Sensing and Compensation Engine, implemented in the
LDS8160, is now available for licensing to third parties as an
embedded, stand-alone IP block. This IP engine, suitable for
enhancing the performance of LED Driver, Light Management Unit and
Power Management Unit ICs, directly measures the junction temperature
of an LED in the system at its precise physical location. Based on
the measurement, the LED drive current is then optimized according to
a user-programmed profile. The engine continuously monitors the LED,
with each measurement cycle taking less than 200 microseconds per
LED.

Because the engine directly measures the junction temperature of the
diode, it achieves accuracies up to +/- 1C, which roughly doubles the
accuracy obtainable with incumbent indirect solutions that measure
the junction temperature of the silicon in the IC and then
extrapolate the temperature at the LED. Alternatively, for solutions
that rely on an external temperature sensor, the LED-Sense(TM)
reduces system cost and complexity.

In today's power-hungry environment, LEDs are growing as a green,
higher-efficiency alternative used to light our world. Regardless of
the application, a critical factor to the adoption of LEDs is its
reliability, which degrades with self-heating. Preventing excessive
heating on the device is one of the most significant challenges
system designers face today. This is especially the case for High
Brightness LEDs in automotive and general illumination. The first
step in preventing excessive self-heating of LEDs is to accurately
and continuously monitor their junction temperature and quickly react
to changes. In this context, Leadis' LED-Sense(TM) Temperature
Sensing and Compensation Engine is a unique tool that can be added to
every system designer's tool box.

"We are pleased to bring to the market our patent pending
LED-Sense(TM) Temperature Sensing and Compensation Engine IP," said
Donato Montanari, Vice President at Leadis Technology. "The modular
structure of this IP engine and its small gate count of approximately
twenty thousand gates make it economical and flexible for system
designers to adopt. Our IP can be used in systems where the LEDs are
connected in either series or parallel."

About the LED-Sense(TM) Temperature Sensing and Compensation Engine
IP

The LED-Sense(TM) Temperature Sensing and Compensation Engine is
comprised of three independent IP blocks. The Sensing and Acquisition
block is a mixed-signal block that outputs 10-bit codes representing
sequential readings of the Threshold Voltage of the different LEDs.
The Digital Temperature Processing block is a hardwired digital
signal processor that transforms the 10-bit voltage codes into 5-bit
Temperature codes. The Temperature Compensation block is the last
block of the pipe and consists of a Look-Up Table that takes the
Temperature codes as address and produces an adjustment value that is
summed to the PWM signal controlling the current of the LED.

Leadis' LED-Sense(TM) Temperature Sensing and Compensation Engine has
been proven on the LDS8160, a backlight driver for portable
applications, and is now being made available as a stand-alone IP for
embedded use. Both the LDS8160 and its evaluation board are available
for sampling.

About Leadis Technology, Inc.

Leadis Technology, Inc., headquartered in Sunnyvale, California,
designs, develops and markets analog and mixed-signal semiconductors
that enable and enhance the features and capabilities of portable and
consumer electronics devices. Leadis' product offerings include color
display drivers, which are critical components of displays used in
mobile consumer electronic devices; LED drivers, which provide
controlled levels of current required to drive light emitting diodes
in diverse applications including mobile backlight units; and touch
controller ICs, which enable highly reliable touch-based input
controls and attractive industrial design options for both mobile and
non-mobile applications.

Cautionary Statement

Certain statements in this press release including, but not limited
to, the features and benefits of Leadis' LED-Sense(TM) Temperature
Sensing and Compensation Engine and LDS8160 LED driver, are
forward-looking statements that are subject to risks and
uncertainties that could cause results to be materially different
than expectations. Such risks and uncertainties include, but are not
limited to, the lack of market adoption of the LED-Sense(TM)
Temperature Compensation engine technology, that pending patent
applications will not result in issued patents or that any issued
patents may not be sufficiently broad to protect our proprietary
technologies, that competing technologies will evolve rapidly, that
customer specifications will change, general mobile handset and
semiconductor industry trends, and other risks detailed from time to
time in Leadis' reports filed with the Securities and Exchange
Commission including its Form 10-K for the year ended December 31,
2007 and Form 10-Q for the quarter ended September 30, 2008. Leadis
disclaims any obligation to update these forward-looking statements.


For more information, visit www.leadis.com.

Contact Information:
Julie Pestka Schardt
408-331-8603


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