Believed to be the market's first multi-functional door-zone driver with an integrated electric-window control, STMicroelectronics' L99DZ80 is claimed to reduce the bill of materials. It has already been selected for broad adoption by a German car manufacturer. The door actuator driver removes the need for mechanical relays in car-window control, reducing component costs as well as eliminating EMC countermeasures. The device 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. There is an embedded SPI-programmable, slew-rate control IP that can drive four external MOSFETs in a half-bridge configuration dedicated to PWM-driven electric-window applications.
