This shield makes it easy to control two high-power DC motors with your Arduino or Arduino-compatible board. Its twin discrete MOSFET H-bridges support a wide 6.5 V to 40 V operating range and are efficient enough to deliver a continuous 14 A without a heat sink. The drivers offer basic current sensing and current limiting functionality, and they accept ultrasonic PWM frequencies for quieter operation. The Arduino pin mappings can all be customized if the defaults are not convenient, and the motor driver control lines are broken out along the left side of the shield for general-purpose use without an Arduino.
Key Specifications:
Operating voltage: 6.5 V to 40 V (absolute maximum; not intended for use with 36 V batteries)
Output current: 14 A continuous
Current sense output proportional to motor current (approx. 20 mV/A; only active while H-bridge is driving)
Active current limiting (chopping) with approximate default threshold of 40 A (can be adjusted lower)
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