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The TB6600 is a PWM controlled single-chip bipolar micro-step stepping motor driver. It is used for controlling stepper motor stepping and direction It can withstand voltage up to 50V and output current up to 5A. Forward and reverse rotation control is available. It can be driven by only clock signal. It runs stepper motor with low vibration and high efficiency. TB6600 has micro-stepping capability (up to 1/16 microstep) for better positioning accuracy. Features Bipolar stepper motor driver Supply Voltage : up to 50V Rated current: 4.5A/phase Peak Current: 5A Micro-stepping capability (1/1, 1/2, 1/4, 1/8, and 1/16 step) Forward and reverse rotation Built-in thermal shutdown (TSD) circuit Built-in over-current detection (ISD) circuit TB6600 stepper motor driver IC datasheet