onsemi NCV70627MW002AR2G

The NCV70627 is a single−chip micro−stepping motor driver with position controller and control/diagnostic interface. It is ready to build dedicated mechatronics solutions connected remotely with a LIN master. The chip receives positioning instructions through the bus and subsequently drives the motor coils to the desired position. The on−chip position controller is configurable (OTP or RAM) for different motor types, positioning ranges and parameters for speed, acceleration and deceleration. The NCV70627 acts as a slave on the LIN bus and the master can fetch specific status information like actual position, error flags, etc. from each individual slave node. An integrated sensor−less step−loss detection prevents the positioner from loosing steps and stops the motor when running into stall. This enables silent, yet accurate position calibrations during a referencing run and allows semi−closed loop operation when approaching the mechanical end−stops. The chip is implemented in I3T50 technology, enabling both high voltage analog circuitry and digital functionality on the same chip. The NCV70627 is fully compatible with the automotive voltage requirements. Due to the technology, the device is especially suited for use in applications with fluctuating battery supplies.

• Micro−stepping Technology
• Sensorless Step−loss Detection
• Peak Current up to 800 mA
• Low Temperature Boost Current up to 1100 mA
• Programmable Current Stabilization Phase
• Fixed Frequency PWM Current−control
• Automatic Selection of Fast and Slow Decay Mode
• No External Fly−back Diodes Required
• Compliant with 14 V Automotive Systems
• Position Controller
• Configurable Speeds and Acceleration
• Input to Connect Optional Motion Switch
• Physical Layer Compliant to LIN rev. 2.0. Data−link Layer Compatible with LIN rev. 1.3
• Field−programmable Node Addresses
• Dynamically Allocated Identifiers
• Diagnostics and Status Information
• Overcurrent Protection
• Open−circuit Detection
• High Temperature Warning and Management
• Low Temperature Flag
• LIN Bus Short−circuit Protection to Supply and Ground
• Lost LIN Safe Operation
• Enhanced Under Voltage Management
• Powerdown Supply Current <150 μA
• 3.3 V Regulator with Wake−up On LIN Activity
• LIN Bus Integrated Slope Control
• HV Outputs with Slope Control
• This is a Pb−Free Device

• Automotive (headlamp leveling, HVAC, idle control, cruise control)
• Industrial equipment (lighting, fluid control, labeling, process control, XYZ tables, robotics, etc.)
• Building automation (HVAC, surveillance, satellite antennas, renewable energy systems)