LED Driver conserves board space in handheld electronics.
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Press Release Summary:
Offered in 3 x 3 mm QFN package, SP6887 integrates off-chip functions so that only 5 external components are required. Charge pump-based device offers 4 independently controlled channels and is compatible with PWM dimming up to 1 kHz as well as analog dimming. Though 3-bit parallel interface, unit can enable/dim individual LEDs and is adjustable from 1.1-30 mA with peak efficiencies of 90%. Channel-to-channel current matching of 3% ensures even color and brightness between all 4 LEDs.
Original Press Release:
Exar's Light Emitting Diode (LED) Driver Delivers Reduced Board Space Requirements Critical in the Design of Handheld Electronics
FREMONT, Calif., March 3 -- Exar Corporation (NASDAQ:EXAR) released a new LED driver -- the SP6887 -- that saves valuable board space by leveraging its small packaging (3x3mm QFN), and the integration of off-chip functions which lowers external component requirements. The SP6887 is a charge pump based 4-channel LED driver that requires only five external components.
It is ideal for two key market areas: small display/keypad LED lighting applications found in handheld portable devices such as PDAs, cell phones and data collection devices, and also in architectural and general purpose LED systems found in office equipment operator panels.
"In addition to reducing board space needs, the device delivers lowered Bill-of-Material (BOM) costs giving OEMs a competitive advantage for supporting price-sensitive market conditions," said Joe Vyvijal, vice president, Power Product Line. "The SP6887, with its four independently controlled channels, is an ideal choice for keypads utilizing Light Guide Film (LGF) systems where only portions of the available LEDs are illuminated to accentuate specialized functions in end-user devices."
Key Product Features
The SP6887 is compatible with PWM dimming up to 1 kHz and analog dimming and has the ability to enable/dim individual LEDs through a 3 bit parallel interface and can vary the current through an analog control pin. In addition, the drivers are adjustable from 1.1mA to 30mA with peak efficiencies of 90% and have an input voltage operating range of 2.5V to 5.5V. Also, the SP6887 has 3% channel-to-channel current matching ensuring even color and brightness between all four LEDs.
Power Management Products
Highly reliable, accurate, power management is a critical part of any technology system. Exar has a broad array of high-performance and industry-proven power management solutions including handset and lighting controls, power conversion, and standard linear devices.
Prices, Packages, Availability and Additional Information
Samples of the SP6887 are available now and it operates over a -40 degrees C to +85 degrees C temperature range. In 1k piece quantities the SP6887 is $0.65. Additional information on this product can be found at www.exar.com/Common/Content/ProductDetails.aspx?ID=SP6887 . Additional information on this and other LED drivers can be found at www.exar.com/Common/Content/Product.aspx?Parent=2&ID=116#19. Samples, evaluation boards, and technical documentation are all available at http://www.exar.com/.
About Exar
Exar Corporation is Powering Connectivity by delivering highly differentiated silicon solutions empowering products to connect. With distinctive knowledge in analog and digital technologies, Exar enables a wide array of applications such as portable devices, home media gateways, communications systems, and industrial automation equipment. Exar has locations worldwide providing real-time system-level support to drive rapid product innovation. For more information about Exar visit: http://www.exar.com/.
CONTACT: Greg Kaufman, Marketing Communications of Exar Corporation, +1-510-668-7000
