TB6600HG PWM chopper type bipolar stepper motor driver IC TB6600HG is a PWM chopper type single chip bipolar sine micro stepper motor driver. Forward and reverse rotation control provides 2-phase, 1-2 phase, W1-2 phase, 2W1-2 phase, and 4W1-2 phase excitation modes. The two-phase bipolar stepper motor is driven only by a clock signal, with low vibration and high efficiency. Features • Single chip bipolar sine micro stepper motor driver Ron (upper and lower limits)=0.4 Ω (typical value) • Provides forward and reverse rotation control • Optional phase drive (1/1, 1/2, 1/4, 1/8, and 1/16 step sizes) • Output withstand voltage: Vcc=50 V • Output current: IOUT=5.0 A (absolute maximum rated value, peak) IOUT=4.5 A (working range, maximum value) Package: HZIP25-P-1.00F Built in input pull-down resistance: 100 k Ω (typical value), (TQ terminals only: 70k Ω (typical value)) • Output monitor pin (ALERT): maximum IALERT=1 mA • Output monitor pin (MO): IMO=maximum value of 1 mA • Equipped with reset and enable pins • Functional backup • Single power supply • Built in thermal shutdown (TSD) circuit • Built in undervoltage lockout (UVLO) Circuit • Built in overcurrent detection (ISD) circuit