Overview
The NCV70627DQ001R2G is a single-chip microstepping motor driver produced by onsemi. It integrates a position controller and a control/diagnostic interface, making it ideal for building dedicated mechatronics solutions. The device communicates with a LIN master to receive positioning instructions and drives the motor coils to the desired position. The on-chip position controller is configurable via OTP or RAM for various motor types, positioning ranges, and parameters such as speed, acceleration, and deceleration. It operates as a slave on the LIN bus, allowing the master to retrieve status information like actual position and error flags from each slave node.
Key Specifications
| Parameter | Min | Max | Unit | Description | |
|---|---|---|---|---|---|
| VBB Supply Voltage | 5.5 | 29 | V | Battery voltage supply range | |
| Peak Current | 800 mA | mA | Maximum current through motor coil in normal operation | ||
| Low Temperature Boost Current | 1100 mA | mA | Boost current under thermal warning level | ||
| Junction Temperature Range | -50 | 175 | °C | Operating junction temperature range | |
| Storage Temperature Range | -55 | 160 | °C | Storage temperature range | |
| Internal Oscillator Frequency | 3.6 | 4.0 | 4.4 | MHz | Frequency of internal oscillator |
| Power-up Time | 10 | ms | Guaranteed power-up time | ||
| Sleep Mode Current Consumption | 150 μA | μA | Current consumption in sleep mode |
Key Features
- Microstepping Technology: Supports half-stepping, 1/4, 1/8, and 1/16 microstepping modes.
- Sensorless Step-loss Detection: Prevents position loss and stops the motor in case of stall, enabling silent and accurate position calibrations.
- Programmable Current Stabilization Phase: Allows for fixed frequency PWM current control with automatic selection of fast and slow decay modes.
- No External Fly-back Diodes Required: Simplifies the circuit design.
- Position Controller with RAM and OTP Memory: Configurable speeds and acceleration parameters.
- LIN Interface Compliance: Compliant with LIN rev. 2.0 and compatible with LIN rev. 1.3 for data-link layer.
- Protection Features: Includes overcurrent protection, open-circuit detection, high temperature warning and management, and LIN bus short-circuit protection.
- Power Saving: Low powerdown supply current and integrated 3.3 V regulator with wake-up on LIN activity.
- EMI Compatibility: Integrated slope control for LIN bus and HV outputs.
Applications
The NCV70627DQ001R2G is ideally suited for various applications across different industries:
- Automotive: Headlamp alignment, HVAC, idle control, cruise control.
- Industrial Equipment: Lighting, fluid control, labeling, process control, XYZ tables, robots.
- Building Automation: HVAC, surveillance, satellite dish, renewable energy systems.
These applications typically involve small positioning tasks, multiple axes, or mechatronics solutions with the driver chip mounted directly on the motor.
Q & A
- What is the NCV70627DQ001R2G?
The NCV70627DQ001R2G is a single-chip microstepping motor driver with a position controller and control/diagnostic interface.
- What are the supported microstepping modes?
It supports half-stepping, 1/4, 1/8, and 1/16 microstepping modes.
- What is the maximum peak current through the motor coil?
The maximum peak current is up to 800 mA, with a low temperature boost current up to 1100 mA.
- What is the operating voltage range for VBB?
The VBB supply voltage range is from 5.5 V to 29 V.
- Does the device require external fly-back diodes?
No, external fly-back diodes are not required.
- What protection features does the device have?
The device includes overcurrent protection, open-circuit detection, high temperature warning and management, and LIN bus short-circuit protection.
- Is the device compatible with automotive voltage requirements?
Yes, it is fully compatible with 14 V automotive systems and can operate with fluctuating battery supplies.
- What is the purpose of the integrated sensor-less step-loss detection?
The integrated sensor-less step-loss detection prevents position loss and stops the motor in case of stall, enabling silent and accurate position calibrations.
- What are the typical applications for the NCV70627DQ001R2G?
Typical applications include automotive, industrial equipment, and building automation, particularly for small positioning tasks and mechatronics solutions.
- How does the device communicate with the LIN master?
The device communicates through the LIN bus, receiving positioning instructions and providing status information like actual position and error flags.
