ISSI's Innovative FxLED Driver drives 144 RGB LEDs for
informational lighting displays
SAN JOSE, Calif., Dec. 4, 2012 /PRNewswire/ -- Integrated
Silicon Solution, Inc. (Nasdaq:ISSI), a leader in advanced memory
and analog IC solutions, has announced the IS31FL3731 a high
performance dot matrix LED driver for intelligent displays used in
mobile phones, white good appliances, toys and personal
electronics. The IS31FL3731 is a compact LED driver with
pre-programmed animation and color-effect lighting functions
accessed via an I2C compatible interface. These
pre-programmed functions free-up the microcontroller to do other
system functions resulting in increased performance and battery
life. These devices can also be used in non-battery applications
such as displays in home appliances, thermostats, indoor
informational displays and in industrial applications such as
displays in smart meters. They are also used in various automotive
applications including dashboard and decorative display
applications.
The IS31FL3731 supports two arrays of 72 LEDs for a total of 144
LEDs which can be individually dimmed in 256 steps (8-bit) with 1/9
cycle rate. The required signals to drive all 144 LEDs have been
reduced to 18 by using a multiplexing feature that requires fewer
traces resulting in an optimized PCB space. The IS31FL3731
integrates 8 frames of memory which can be displayed with
programmable time delays between frames to play small LED matrix
animations. The flexible architecture allows multiple
IS31FL3731's to be cascaded for driving much larger arrays of RGB
LEDs. For an added dimension of animation, an analog input such as
an audio signal can be used to modulate the LED display
intensity.
"ISSI has been known traditionally as a high quality, advanced
memory supplier", said Ven Shan,
ISSI VP of Analog products. "Many don't know that we have embarked
on a fast track strategy to become a go-to supplier of audio
amplifiers, HB LED and RGB LED drivers for the automotive, white
good appliances and consumer electronics markets. The
IS31FL3731 is the industry leading matrix LED driver with the most
functions packed into a small QFN-28 package."
In addition to the small QFN-28 (4mm × 4mm), the IS31FL3731
matrix LED driver is also available in a gull winged SSOP-28
package for easier handling in applications that are not space
sensitive. The device's operating voltage of 2.7V to 5.5V
over the industrial temperature range of -40°C to +85°C makes it
ideal for portable battery applications. For more information
on this and other RGB LED products visit the ISSI Analog products
website
http://www.issi.com/products-analog-light-effect.htm
ISSI FxLED Product Line
The FxLED family of Matrix, Multichannel and RGB LED drivers
provides system designers with a wide range of options for bringing
eye-catching color functionality to consumer electronics. For
example, the Matrix line of LED drivers can be used to build an LED
graphic panel for message boards and animated graphic displays; the
Multichannel drivers can be used with light guides for informative
appliance displays and the RGB drivers are perfect for low-cost
color lighting. Overall, ISSI's broad portfolio of FxLED
drivers simplifies the blending of Red-Green-Blue LEDs to produce a
broad range of predefined colors and sequences driving 3 to 144 LED
channels.
Price and Availability
The IS31FL3731 is available now and is priced at $1.49 for the QFN-28 and $1.69 for the SSOP-28 packages in 1,000 piece
quantities.
About Integrated Silicon Solution, Inc.
ISSI is a fabless semiconductor company that designs and markets
high performance integrated circuits for the following key markets:
(i) automotive, (ii) communications, (iii) industrial, medical, and
military, and (iv) digital consumer. The Company's primary products
are high speed and low power SRAM and low and medium density DRAM.
The Company also designs and markets NOR flash products and high
performance analog and mixed signal integrated circuits. ISSI is
headquartered in Silicon Valley with worldwide offices in
Taiwan, Japan, Singapore, China, Europe, Hong
Kong, India, and Korea.
Visit our web site at http://www.issi.com/.
SOURCE Integrated Silicon Solution, Inc.