The TC78S600FNG/FTG is a PWM constant-current type stepping motor driver IC designed for sinusoidal-input micro-step control of stepping motors.
The TC78S600FNG/FTG can be used in applications that require 1-2-phase, W1-2-phase, 2W1-2 phase, and 4W1-2 phase excitation modes. The TC78S600FNG/FTG is capable of forward and reverse driving of a 2-phase bipolar stepping motor using only a clock signal

Features
• Motor power supply voltage: VM = 15V (max)
• Control power supply voltage: Vcc = 2.7 to 5.5V (operation range)
• Output current: Iout ≤ 0.8A (max)
• Output ON-resistance: Ron = 1.2Ω (upper and lower sum)
• Decoder that enables micro step control with the clock signal
• Selectable phase excitation modes (1-2, W1-2, 2W1-2, and 4W1-2)
• Internal pull-down resistors on inputs: 200 kΩ (typ.)
• Output monitor pin (MO)
• Over current protection (ISD), Thermal shutdown (TSD) circuit, and Undervoltage lockout (UVLO) circuit.
• Package: SSOP20 and QFN24
• Fast decay: always 12.5%
• Built-in cross conduction protection circuit