|Alguien dijo ...|
|Ciencia es creer en la ignorancia de los científicos,|
Richard Phillips Feynman(1918-1988).
Físico estadounidense. Premio Nobel de Física 1965.
|Micrel Offers Tiny New 40V PWM Boost Regulator Featuring|
San Jose, Calif., - Micrel Inc., (Nasdaq:MCRL), today launched the MIC2297, a powerful new high
voltage 40V PWM Boost Regulator. This chip, optimized for driving up to 10 LEDs in series, offers an innovative
brightness control feature that minimizes noise and EMI. This allows for an adjustable output current proportional
to an applied analog DC voltage or high-speed digital PWM signal. White LEDs are widely used in PDAs, GPS systems,
Smart Phones, PIC PCs, Digital Cameras, IP phones and LED flashlights. The IC is available in volume and pricing
starts at $1.33 for 1K quantity.
“Consumers continue to demand crisper resolution and brighter screens on all
their electronic and hand-held devices,” noted Ralf Muenster, Micrel’s Director of Marketing for Power Products.
“The MIC2297 offers the highest levels of brightness and clarity possible with the lowest power consumption with its
1uA shutdown current, an ideal combination for the market’s most demanding electronic devices.”
The MIC2297 is a 600 KHz PWM boost-switching regulator optimized for driving a large number of backlight LEDs
in series for backlight applications. It offers a powerful internal 40V switch and has a guaranteed switch current
of 1.2A. With a 2.5V to 10V wide input voltage range and PWM and DAC brightness control, the IC ensures a high level
of brightness while eliminating several external components. In addition, it is available in one of the industry’s
smallest form factors, a tiny, lead-free, 2.5mm x 2.5mm MLF™ -10L packaging option.
Martes, 28 Junio, 2005 - 07:05