STK672-642AN-E: Unipolar 2-Phase Stepper Motor Driver

The STK672-642AN-E is a hybrid IC for use a unipolar, 2-phase stepper motor driver with PWM current control. It includes a built-in controller and is based on a unipolar constant-current PWM system. The STK672-642AN-E supports application simplification and standardization by providing a built-in 4 phase distribution stepping motor controller. It supports five excitation methods: 2 phase and 1-2 phase excitations, and can provide control of the basic stepping angle of the stepper motor divided into 1/2 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. In addition the STK672-642AN-E has protective function against over-current and over-heat. And STK672-640AN-E with hole to attach a heat-sink is lined up.

Features
  • Micro stepping controller built in
  • Protective function against over-current and over-heat built in
  • Current detection resistors built in
Benefits
  • Easy to switch between full step and half step with prevention of jumping phase
  • Superior in safety drive
  • Easy to design and reduce the mounting area
Applications
  • Computing & Peripherals
  • Industrial
End Products
  • Multi-Function Printer
  • Document Scanner
  • Vending Machine
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
STK672-640AN-E, STK672-642AN-E Application NoteANDSTK672-640AN_642AN/D (488kB)0JAN, 2014
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SIP19 24.2x14.4127BA (48.2kB)O
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Unipolar 2-Phase Stepper Motor DriverENA2277/D (480kB)1Jan, 2014
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
STK672-642AN-EActivePb-freeSIP-19127BANATube20$2.8
Specifications
ProductVM Min (V)VM Max (V)VCC Min (V)VCC Max (V)IO Max (A)IO Peak Max (A)Step ResolutionControl TypeFeedback MethodCurrent SenseRegulator OutputFault DetectionFlyback ProtectionRDS(on) Typ (Ω)
STK672-642AN-E10524.755.254201/2ClockNoneFully IntegratedNoThermal
Unipolar 2-Phase Stepper Motor Driver (480kB) STK672-642AN-E
STK672-640AN-E, STK672-642AN-E Application Note STK672-642AN-E
SIP19 24.2x14.4 STK672-732AN-E