TC78S600FTG(O,EL)

The TC78S600FTG is a PWM constant-current type stepping motor driver IC designed for sinusoidal-input micro-step control of stepping motors. The TC78S600FTG can be used in applications that require 1-2-phase, W1-2-phase, 2W1-2 phase, and 4W1-2 phase excitation modes. The TC78S600FTG is capable of forward and reverse driving of a 2-phase bipolar stepping motor using only a clock signal. This product has a MOS structure and is sensitive to electrostatic discharge. When handling this product, ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive mat and an ionizer. Ensure also that the ambient temperature and relative humidity are maintained at reasonable levels. Do not insert devices in the wrong orientation or incorrectly. Otherwise, it may cause the device breakdown, damage and/or deterioration.

• 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 = 1.2O (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 kO (typ.)
• Output monitor pin ( MO )/
• Over current protection (ISD), Thermal shutdown (TSD) circuit, and Under voltage lockout (UVLO) circuit.
• Package: WQFN24
• Fast decay: always 12.5%
• Built-in cross conduction protection circuit