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