Overview
The STK682-010-E is a hybrid IC designed by ON Semiconductor for use as a bipolar, 2-phase stepping motor driver with PWM current control. This device is particularly suited for applications requiring precise motor control, such as turning, alignment, and positioning in both low-cost and harsh environments. It features an integrated driver circuit with single-ended input signals, automatic indexing for fast step and direction control, and various protection mechanisms to ensure reliable operation.
Key Specifications
| Parameter | Symbol | Conditions | Ratings | Unit |
|---|---|---|---|---|
| Supply voltage | VMmax | Tc = 25°C | 36.0 | V |
| Peak output current | Iopmax | Tc = 25°C | 3.0 | A |
| Logic input voltage | VINmax | Tc = 25°C | 6.0 | V |
| VREF input voltage | VREFmax | Tc = 25°C | 6.0 | V |
| Operating substrate temperature | Tc | -20 to +105 | °C | |
| Storage temperature | Tstg | -40 to +125 | °C | |
| Output on-resistance (High side) | Ta = 25°C, IO = 2.5A | 0.3 Ω | Ω | |
| Output on-resistance (Low side) | Ta = 25°C, IO = 2.5A | 0.25 Ω | Ω | |
| Total output on-resistance | Ta = 25°C, IO = 2.5A | 0.55 Ω | Ω |
Key Features
- Output on-resistance: High side 0.3 Ω, Low side 0.25 Ω, Total 0.55 Ω at Ta = 25°C, IO = 2.5A
- Maximum supply voltage: 36 V (DC), Maximum peak output current: 3.0 A
- Selectable phase excitation modes: 2, 1-2, W1-2, 2W1-2, 4W1-2, 8W1-2, 16W1-2, 32W1-2
- Built-in automatic half current maintenance energizing function
- Over current protection circuit and thermal shutdown circuit
- Input pull down resistance and reset pin and enable pin
- Chopping frequency setting function via capacitor between OSC1 pin and GND
- Output short-circuit protection circuit
- Internal DOWN pin for detecting no rising edge of CLK within a specified period
Applications
The STK682-010-E is ideal for various motor and motion control applications, including:
- Turning and alignment systems
- Positioning systems in both low-cost and harsh environments
- Industrial automation
- Medical devices requiring precise motor control
- Consumer electronics with motorized components
Q & A
- What is the STK682-010-E used for?
The STK682-010-E is a hybrid IC used as a bipolar, 2-phase stepping motor driver with PWM current control.
- What are the maximum supply voltage and peak output current of the STK682-010-E?
The maximum supply voltage is 36 V (DC), and the maximum peak output current is 3.0 A.
- What phase excitation modes are available on the STK682-010-E?
The device supports 2, 1-2, W1-2, 2W1-2, 4W1-2, 8W1-2, 16W1-2, and 32W1-2 phase excitation modes.
- Does the STK682-010-E have built-in protection mechanisms?
Yes, it includes over current protection, thermal shutdown, and output short-circuit protection circuits.
- How is the chopping frequency set on the STK682-010-E?
The chopping frequency is set by a capacitor connected between the OSC1 pin and GND.
- What is the purpose of the DOWN pin on the STK682-010-E?
The DOWN pin is used to detect when there is no rising edge of the CLK signal within a specified period and outputs a low level signal.
- What is the operating temperature range of the STK682-010-E?
The operating substrate temperature range is -20 to +105°C, and the storage temperature range is -40 to +125°C.
- Does the STK682-010-E support micro-stepping?
Yes, it supports ultra-high resolution from full-step to 1/128 step.
- What package type does the STK682-010-E come in?
The device is packaged in a 19-pin SIP (Single In-Line Package).
- Where can I purchase the STK682-010-E?
The STK682-010-E can be purchased from various electronic component distributors such as X-ON Electronics, Mouser Electronics, and Ovaga Technologies.
