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RZ7889

Overview

Working Principle: The RZ7889 is a single H-bridge DC motor driver. This project uses two of these chips to implement a dual-channel motor drive.
Function: This module receives pulse signals from the I/O pins and controls the motor's direction and speed based on these signals.
The module's size and pin definitions are completely identical to the A4950 module, making it a direct replacement, and the chip is cheaper.
Operating Conditions: (See attached datasheet for details) Voltage 3-15V, Current 3-5A;

Physical Image:

Design Files

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Update:2026-03-23 14:21:18

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