The 33926 is a monolithic H-Bridge Power IC designed primarily for automotive electronic throttle control, but is applicable to any low-voltage DC servo motor control application within the current and voltage limits stated in this specification. This breakout board for Freescale’s MC33926 full H-bridge has an operating range of 5 – 28 V and can deliver almost 3 A continuously (5 A peak) to a DC motor. The MC33926 works with 3 – 5 V logic levels, supports ultrasonic (up to 20 kHz) PWM, and features current feedback, under-voltage protection, over-current protection, and over-temperature protection.
The MC33926 motor driver carrier can supply up to almost 3 A continuous current to a single brushed DC motor at 5 – 28 V, and it can tolerate peak currents up to 5 A for a few seconds, making this a great general-purpose motor driver for medium-sized DC motors. The MC33926 supports ultrasonic (up to 20 kHz) pulse width modulation (PWM) of the motor output voltage, which eliminates the audible switching sounds caused by PWM speed control, and a current feedback circuit outputs an analog voltage on the FB pin that is proportional to the output current.
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