STMicroelectronics unveils car-door controller IC with integrated window control


Telecom Lead Team:
STMicroelectronics, a provider
of electronics applications with semiconductor solutions, has launched
multi-functional door-zone driver with an integrated electric-window control.


This chip
reduces bill-of-material costs and offers new levels of passenger comfort.


ST’s new
door-zone driver reduces component costs and eliminates expensive
electromagnetic compatibility (EMC) counter measures.


ST’s L99DZ80,
the new door actuator driver, eliminates the need for mechanical relays in
car-window control. ST’s L99DZ80 embeds an SPI-programmable slew-rate control
IP that can drive 4 external MOSFETs in a half-bridge configuration dedicated
to PWM (Pulse Width Mode)-driven electric-window applications. 


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.


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


recently announced the launch
of its high-voltage Schottky diode that will assist
to increase the energy efficiency and ruggedness of equipment such as telecom
base stations and welding equipment.


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