STK672-440BN-E: Uni-polar 2-phase Stepper Motor Driver
The STK672-440BN-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 STK672-440BN-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 STK672-440BN-E has various protective function against over-current, over-heat, and motor terminal open. And small package type STK672-442BN-E without hole to attach a heat-sink is lined up.
Features- Micro stepping controller built in
- Protective function against over-current, over-heat, and motor terminal open 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)
Package Drawings (1)
Data Sheets (1)
Evaluation Board Documents (4)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| STK672-440BNGEVB | Active | Pb-free | Motor Driver, 2-Phase, Microstepping, Unipolar Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| STK672-440BN-E | Active | Pb-free | SIP-19 | 127CF | NA | Tube | 15 | $3.0 |
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) |
|---|
| STK672-440BN-E | 10 | 50 | 4.75 | 5.25 | 3.5 | 20 | 1/16 | Clock | None | Fully Integrated | No | Over-Current | | |
