Sipex SP7615 expands family of low side LED drivers

Date Announced: 25 Aug 2005

Sipex Corporation (Nasdaq: SIPX - News), a leading provider of high performance, analog integrated circuits (ICs), today announced the release of the new SP7615, a linear constant current LED driver. It is designed to drive multiple LEDs in series from a high input voltage rail (+16V max).

Complimenting Sipex's existing LED drivers, SP7615 is ideal for mid size LCD module backlighting, LCD TV LED backlighting, landscape lighting, and any high power LED lighting application.

SP7615 employs a simple design that enables a cost effective solution for driving LEDs from a wide range of input voltages. It is capable of powering up to four LED strings of up to 125mA per string for a total of 500mA. LED current can be adjusted with only one external resistor, thus offering a simple and easy to use solution to accurately match the current between multiple LEDs. The device also features very low drop out voltage for high efficiency. Packaged in a tiny 2mm x 3mm 8 pin DFN package, the SP7615 offers a small factor solution.

Its internal circuitry maintains the preset constant current output for a wide voltage range at the 4 LED outputs. For example in a typical +12V input application, the SP7615 can drive up to 3 LEDs in series per string for a total of 12 LEDs, offering a powerful lighting solution. Brightness can be adjusted by employing a PWM dimming scheme. Additionally, the SP7615 features built-in thermal protection which automatically adjusts LED current to prevent overheating.

SP7615 Key Features (typical):

* Constant current output ideal for driving Led strings
* Four Channel LED Driver provides matched LED current
* Current adjusted via only one external resistor
* PWM dimming by using the ENABLE pin
* Small 2mm x 3mm DFN package
* Outputs can be connected in parallel to increase driving capability
* Constant current for wide cathode voltage range (1.0V to 16V)
* Highly integrated design, minimal components
* Thermal shutdown protects the driver and LED from overheating

Pricing and Availability

SP7615 is qualified over the industrial, -40 degrees C to 85 degrees C, temperature range and is available now. Samples are available to assist in the evaluation of the products. Pricing for these products begins at $0.92 in 1,000 piece quantities. Datasheets and additional information on this family and other Sipex product offerings may be found on the company web site at www.sipex.com.

About Sipex Power Management Product Line

Power management ICs deliver key benefits to portable power and distributed power applications, providing better power efficiency, increased miniaturization and more power at lower voltage levels. This product group includes low dropout linear regulators, DC to DC switching regulators, LED drivers, PWM controllers, charge pumps, and microprocessor supervisors. Applications for the Sipex power products include personal computers and peripherals, battery powered hand-held devices such as PDAs and cellular telephones, and data communications products.

About Sipex

Sipex Corporation is a semiconductor company that designs, manufactures and markets high performance, value-added analog integrated circuits (IC). Sipex serves the broad analog signal processing market with interface, power management and optical storage ICs for use in automotive, portable products, computing, communications, and networking infrastructure markets. The company is headquartered in Milpitas, CA with additional offices in Belgium, Canada, China, Germany, Japan, and Taiwan. Sipex sells products direct and through its distribution channels.

Contact
Chris Lee Technical Marketing Manager Phone: 408-934-7500 Fax: 408-935-7600

E-mail:info@sipex.com

Web Site:http://www.sipex.com

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