Allegro Announces New Automotive Grade Bipolar Stepper Motor Driver or Dual DC Motor Driver IC

Allegro MicroSystems, LLC introduces a new automotive grade bipolar stepper motor driver or dual DC motor driver IC AMT49702, which is designed for pulse width modulation (PWM) control of low voltage stepper motors and dual/single high current DC motors. design. The output current of AMT49702 can reach 1A per channel and the working voltage is 3.5 to 15V. The main application areas include: mirror positioning and dust cover in HUD, screen lifter in navigation system, driver attention monitoring system. Camera movement or focus in, and vibration alarms in steering wheel feedback, etc.

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The AMT49702 is an automotive grade device that has been tested for extended temperature and voltage ranges to ensure compliance with automotive or industrial applications. It has an internal fixed off-time PWM timer that sets the peak current based on the selected current sense resistor. The AMT49702 also provides an output fault flag that notifies the user of events such as thermal shutdown (TSD) or overcurrent protection.

The AMT49702 is available in a thin 16-lead TSSOP (suffix "LP") package with an exposed power pad for enhanced thermal performance.