STK672-640AN-E: Unipolar 2-Phase Stepper Motor Driver
The STK672-640AN-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 STK672-640AN-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 STK672-640AN-E has protective function against over-current and over-heat. And a small package STK672-642AN-E without 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
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Applications- Computing & Peripherals
- Industrial
| End Products- Multi-Function Printer
- Document Scanner
- Vending Machine
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Application Notes (1)
Package Drawings (1)
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| STK672-640AN-E | Active | Pb-free | SIP-19 | 127CF | NA | Tube | 15 | $2.8 |
Specifications
| Product | VM Min (V) | VM Max (V) | VCC Min (V) | VCC Max (V) | IO Max (A) | IO Peak Max (A) | Step Resolution | Control Type | Feedback Method | Current Sense | Regulator Output | Fault Detection | Flyback Protection | RDS(on) Typ (Ω) |
|---|
| STK672-640AN-E | 10 | 52 | 4.75 | 5.25 | 4 | 20 | 1/2 | Clock | None | Fully Integrated | No | Over-Current | | |
