STK672-080

Ordering number : ENN6507A Thick-Film Hybrid IC STK672-080 Stepping Motor Driver (Sine Wave Drive) Output Current: 2.8 A (No Heat Sink*) Unipolar constant-current chopper (external excitation PWM) circuit with built-in microstepping controller Overview The STK672-080 is a stepping motor driver hybrid IC that uses power MOSFETs in the output stage. It includes a built-in microstepping controller and is based on a unipolar constant-current PWM system. The STK672-080 supports application simplification and standardization by providing a built-in 4 phase distribution stepping motor controller. It supports five excitation methods: 2 phase, 1-2 phase, W1-2 phase, 2W1-2 phase, and 4W1-2 phase excitations, and can provide control of the basic stepping angle of the stepping motor divided into 1/16 step units. It also allows the motor speed to be controlled with only a clock signal. The use of this hybrid IC allows designers to implement systems that provide high motor torques, low vibration levels, low noise, fast response, and high-efficiency drive. Compared to the earlier SANYO STK672-050, the STK672-080 features a significantly smaller package for easier mounting in end products. One of five drive types can be selected with the drive mode settings (M1, M2, and M3) —2 phase excitation drive —1-2 phase excitation drive —W1-2 phase excitation drive —2W1-2 phase excitation drive —4W1-2 phase excitation drive Phase retention even if excitation is switche...