Automotive bipolar stepper motor driver/dual DC motor driver IC
The chip is capable of output currents up to 1A per channel and operating voltages from 3.5 to 15V. Key applications include: head-up-display (HUD) – mirror positioning and dust cover; navigation – screen lift, driver attention monitor – camera movement or focus, and steering wheel feedback – vibration alert.
The AMT49702 is an automotive-grade device and is tested across extended temperature and voltage ranges to ensure compliance in automotive or industrial applications. It has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor. An output fault flag is provided that notifies the user of a TSD or overcurrent protection event.
The AMT49702 is supplied in a low-profile 16-lead TSSOP (suffix “LP”) with exposed power tab for enhanced thermal dissipation. Data sheet.
Allegro; www.allegromicro.com
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