Front Door Without Lock Control
The actuator drivers designed by ST for automotive door zone applications are characterized by a scalable actuator driving concept, compatible with package and software, to satisfy the multiplicity of door electronics variants today. The drivers support all regular door zone loads such as door lock motors, mirror folder and leveling, defroster, and several lighting functions from LEDs to incandescent bulbs.
L9952 is a sophisticated power management device, enabling the application to achieve a very low quiescent current. Control and diagnostics for all devices are managed via a serial peripheral interface (SPI). They are available in small power packages, offering superior thermal performance – ideal for compact and lightweight systems. In case door lock motors become centralized-driven, the door module supports only power window and mirror control functionality. L9954 is a device that fits this requirement perfectly.
AN2334: Complete car door module