STMicroelectronics (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications and the leading supplier of car-door electronics, today introduced the market's first multi-functional door-zone driver with an integrated electric-window control. This innovative chip, which reduces bill-of-material costs and offers new levels of passenger comfort, has already been selected for broad adoption at a leading German car manufacturer.
Today, equipment manufacturers use relays to drive the
electric-window motors. ST's newest door actuator driver
redefines the established system topology, removing the
need for mechanical relays in car-window control. The
innovation slashes component costs and eliminates expensive
electromagnetic compatibility (EMC) countermeasures,
associated with the existing solutions, while enabling
users to enjoy a smoother and quieter car-window operation.
ST's new door-zone driver supports adjustable window speeds
related to the position of the window - soft start and
shutdown - and reduces noise levels with the removal of the
relay as well.
embeds an SPI-programmable slew-rate1 control IP that can
drive 4 external MOSFETs in a half-bridge configuration
dedicated to PWM (Pulse Width Mode)-driven electric-window
applications. Other features include six bridges for double
door-lock control, mirror fold, and mirror-axis control,
together with a high-side driver for mirror defroster,
bulbs and LEDs. The device also integrates a control block
with an external MOS transistor for charging and
discharging of electrochromic (dimmable) mirror
glasses.
ST is the world's largest supplier of car-door electronics,
with more than 100 million door-actuator devices shipped
over the past ten years. Designed for state-of-the-art
automotive door-module applications, ST's market-proven
devices are renowned and recognized for their scalability,
small size, advanced power-management functionality, and
superior thermal performance.
The newest addition to ST's family of
microcontroller-driven multi-functional car-door actuator
drivers, the L99DZ80 is available in volumes. For pricing
options, please contact your ST sales office.
About STMicroelectronics
STMicroelectronics is a global leader serving customers
across the spectrum of electronics applications with
innovative semiconductor solutions. ST aims to be the
undisputed leader in multimedia convergence and power
applications leveraging its vast array of technologies,
design expertise and combination of intellectual property
portfolio, strategic partnerships and manufacturing
strength. In 2011, the Company's net revenues were $9.73
billion. Further information on ST can be found at .
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