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NCV70624 fiches techniques PDF

ON Semiconductor - Micro-stepping Motor Driver

Numéro de référence NCV70624
Description Micro-stepping Motor Driver
Fabricant ON Semiconductor 
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NCV70624 fiche technique
AMIS-30624, NCV70624
I2C Micro-stepping Motor
Driver
INTRODUCTION
The AMIS30624/NCV70624 is a singlechip microstepping
motor driver with a position controller and control/diagnostic
interface. It is ready to build intelligent peripheral systems where up to
32 drivers can be connected to one I2C master. This significantly
reduces system complexity.
The chip receives positioning instructions through the bus and
subsequently drives the stator coils so the twophase stepper motor
moves to the desired position. The onchip position controller is
configurable (OTP or RAM) for different motor types, positioning
ranges and parameters for speed, acceleration and deceleration.
Microstepping allows silent motor operation and increased
positioning resolution. The advanced motion qualification mode
enables verification of the complete mechanical system in function of
the selected motion parameters. The AMIS30624/NCV70624 can
easily be connected to an I2C bus where the I2C master can fetch
specific status information like actual position, error flags, etc. from
each individual slave node.
An integrated sensorless steploss 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 semiclosed loop operation when approaching the
mechanical endstops.
The chip is implemented in I2T100 technology, enabling both high
voltage analog circuitry and digital functionality on the same chip.
The NCV70624 is fully compatible with the automotive voltage
requirements.
http://onsemi.com
SOIC20
4 or DW010 SUFFIX
CASE 751AQ
NQFP32
5 SUFFIX
CASE 560AA
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
PRODUCT FEATURES
Motor Driver
MicroStepping Technology
Sensorless StepLoss Detection
Peak Current Up to 800 mA
Fixed Frequency PWM CurrentControl
Selectable PWM Frequency
Automatic Selection of Fast and Slow Decay Mode
No external Flyback Diodes Required
14 V/24 V Compliant
Motion Qualification Mode (Note 1)
Controller with RAM and OTP Memory
Position Controller
Configurable Speeds and Acceleration
Input to Connect Optional Motion Switch
I2C Interface
BiDirectional 2Wire Bus for Inter IC Control
Field Programmable Node Addresses
Full Diagnostics and Status Information
Protection
Overcurrent Protection
Undervoltage Management
Opencircuit Detection
High Temperature Warning and Management
Low Temperature Flag
EMI Compatibility
High Voltage Outputs with Slope Control
Patents
US 7,271,993
US 7,288,956
This is a PbFree Device
NCV Prefix for Automotive and Other Applications
Requiring Site and Control Changes
1. Not applicable for “Product Versions NCV70624DW010G, NCV70624DW010R2G”
Semiconductor Components Industries, LLC, 2009
September, 2009 Rev. 5
1
Publication Order Number:
AMIS30624/D

PagesPages 30
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