Boost Regulator drives white LEDs for backlighting.
Share:
Press Release Summary:
With max output voltage of 24 V and switch current of over 350 mA, Model MIC3287 drives string of 4 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. Unit features 1.2 MHz PWM operation and 250 mV feedback for over-voltage and over-temperature protection. Housed in TSOT-5 and TSOT-6 packaging, IC is suited for backlighting in mobile phones, PDAs, GPS systems, digital cameras, MP3 players, and IP phones.
Original Press Release:
Micrel Introduces New Boost Regulator to Drive Series WLEDs in LCD Backlighting Applications
SAN JOSE, Calif., Jan. 9 / -- Micrel Inc. (NASDAQ:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched the MIC3287, a 1.2MHz pulse width modulated (PWM) boost-switching regulator optimized for driving series white LEDs. The new IC targets backlighting applications in mobile phones, PDAs, GPS systems, digital cameras, MP3 players and IP phones. The MIC3287 is currently available in volume and pricing starts at $0.75 for 1K quantities.
"The white LED backlighting market remains one of the most competitive arenas in the industry," noted Ralf Muenster, Micrel's director of marketing for power products. "Our goal is to offer ever-higher levels of efficiency and functionality while bringing our customers the most value for their money. The MIC3287 integrates an over-voltage protection function that gives manufacturers real value because competitive solutions require a discrete circuit, which increases the size and cost of the solution."
With a maximum output voltage of 24V and a switch current of over 350mA, the MIC3287 drives a string of four white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The IC features 1.2MHz PWM operation for small output filter size, 250mV feedback for high efficiency and over-voltage and over-temperature protection for safety. The MIC3287 comes in low profile TSOT-5 and TSOT-6 packaging options as well as a 2.x 2 MLF(TM) 8L packaging for space-conscious applications.
About Micrel Inc.
Micrel Inc. is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: www.micrel.com/ .
NOTE: MLF is a trademark of Amkor Technology.
CONTACT: Julieanne DiBene, Marketing Communications of Micrel Inc., +1-408-474-1276, or Julie.DiBene@Micrel.com
