NCV70627 Datasheet, PDF (1/61 Pages) ON Semiconductor – Micro-stepping Motor Driver

NCV70627
Micro-stepping Motor Driver
Introduction
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.
www.onsemi.com
SSOP−EP
36 LEAD
CASE 940AB
1 32
QFN32, 5x5
CASE 488AM
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 2 of this data sheet.
PRODUCT FEATURES
Motordriver
• 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
Controller with RAM and OTP Memory
• Position Controller
• Configurable Speeds and Acceleration
• Input to Connect Optional Motion Switch
LIN Interface
• Physical Layer Compliant to LIN rev. 2.0. Data−link
Layer Compatible with LIN rev. 1.3 (Note 1)
• Field−programmable Node Addresses
• Dynamically Allocated Identifiers
• Diagnostics and Status Information
Protection
• 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
Power Saving
• Powerdown Supply Current < 150 mA
• 3.3 V Regulator with Wake−up On LIN Activity
EMI Compatibility
• LIN Bus Integrated Slope Control
• HV Outputs with Slope Control
• This is a Pb−Free Device
1. Minor exceptions to the conformance of the data−link layer to LIN rev. 1.3.
© Semiconductor Components Industries, LLC, 2015
1
August, 2015 − Rev. 0
Publication Order Number:
NCV70627/D