Light vehicle locks, windows and mirrors are no longer mechanically operated. In today’s environment, the window, mirror, and seat controls are an integral part of the vehicle. Control can be direct and remote, via a switch, button, handle, or key-fob. Functions such as door lock/unlock; mirror fold, defrost, leveling, and lighting; and seat and window adjustment are all done within the door module. We have a wide variety of mixed analog digital technologies with power driving capabilities, that enable designers to develop customizable door zone solutions for cars, trucks, and SUVs.

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Evaluation/Development Kits


SEC-PTC400-EVB is a complete system solution for PTC HEV/EV vehicles applications, incorporating the power train, gate drivers and auxiliary subsystems to facilitate the adoption in custom designs.

LIN ST Driver Stall SS Demonstration Evaluation Board

A single-chip micro-stepping motor driver with position controller and control/diagnostic interface.

Reference Designs

PTC IGBT Driver Reference Design

An entry point to the reference documentation of PTC heater discrete IGBT driver board evaluation platform, version 1.0.1.

Technical Documents

Automatic HVAC Air Recirculation Made Easy with Stepper Motors

A technical note highlighting system requirements and operating conditions of automatic air recirculation valves and reviewing compatibility of existing actuator types with these requirements.