STK672-442AN-E: Unipolar 2-phase Stepper Motor Driver

The STK672-442AN-E is a hybrid IC for use a unipolar, 2-phase stepper motor driver with PWM current control. It includes a built-in microstepping controller and is based on a unipolar constant-current PWM system. The STK672-442AN-E supports application simplification and standardization by providing a built-in 4 phase distribution stepper 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 stepper 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. In addition the STK672-442AN-E has various protective function against over-current and over-heat. And STK672-440AN-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, half step, 1/4 step, 1/8 step and 1/16 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
  • Security Camera
  • Vending Machine
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
STK672-440AN-E, STK672-442AN-E Application NoteANDSTK672-440AN_442AN/D (878kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SIP19 24.2x14.4127BA (48.2kB)O
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
2-phase Stepper Motor DriverENA2274/D (867kB)0JAN, 2014
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
STK672-442AN-EActivePb-freeSIP-19127BANATube20$3.0
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)
STK672-442AN-E20524.755.253.5201/16ClockNoneFully IntegratedNoThermal
2-phase Stepper Motor Driver (867kB) STK672-442AN-E
STK672-440AN-E, STK672-442AN-E Application Note STK672-442AN-E
SIP19 24.2x14.4 STK672-732AN-E