Multiple Motor Smart Control Solution



This solution describes a smart way to control multiple DC motors in applications with short-time duty cycles. A flexible and low-cost solution that allows several different configurations, it also offers advanced diagnostics for increased motor reliability and longevity.

This automotive-grade solution consists of a general-purpose SPC56 B line automotive microcontroller that provides the logic for monitoring and driving our L99UDL01 actuator control IC. With six integrated half-bridges featuring programmable pulse width modulation (PWM) current regulation, the L99UDL01 is able to drive several motors as well as two external high-power half-bridges.

Thanks to its integrated control loop, the system guarantees an accurate current regulation, so in critical phases like inrush and stall (when usually high currents are required), the current flow can be managed reducing motor stress and noise, ensuring a longer motor lifetime.

This cost-effective solution can also be easily adapted for several configurations: the six half-bridges can be connected in many ways for driving different motors by parallelizing 3 outputs, even ones requiring higher currents up to 12 A.

Developed originally for universal door locks, this solution is ideal for automotive applications where short-time, intermittent duty cycles are required. Designed for internally-commutated motors running from a DC power source, our solution makes it easy to drive motors used in low-voltage applications ranging from trunk and window lifts, seat positioning, door control, HVAC (heating, ventilation, and air conditioning) to exhaust gas recirculation (EGR), turbo waste gates and throttle valves.

  • 主要产品优势

    L99UDL01 actuator control IC

    Designed originally as a universal door lock IC, the L99UDL01 can drive several motors independently. Entirely commanded by SPI using duration and current level commands, it offers a high level of programmability, many protection features, and advanced diagnostics. The L99UDL01 also includes an Emergency Mode which provides the most reliable way to ensure Emergency Responders’ access to the vehicle in case of an accident.

    SPC560B54L3 32-bit Power Architecture MCU

    Addressing the specific needs of convenience and body control modules, the SPC560B54L3 operates at speeds of up to 64 MHz and offers high-performance processing optimized for low power consumption. In addition to two input operating voltage ranges (3.3V supply: 6 to 18 V; 5V supply: 6 to 26 V), it features advanced light control and diagnostics with exhaustive debugging capabilities.

  • All Features

    • Smart way to control multiple DC motors in applications with short-time duty cycles
    • Flexible and low-cost solution that allows several different configurations
    • Advanced diagnostics for increased motor reliability and longevity