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NCV70522MN Datasheet

Micro-Stepping Motor Driver

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NCV70522MN
Micro-Stepping Motor Driver
Introduction
The NCV70522MN is a microstepping stepper motor driver for
bipolar stepper motors. The chip is connected through I/O pins and a
SPI interface with an external microcontroller. The NCV70522MN
features an internal currenttranslation table: it takes the next
microstep depending on the clock signal on the stepping input pin
(NXT) and the status of the direction register or input pin (DIR). A
reliable current control is achieved using an integrated proprietary
PWM algorithm.
The NCV70522MN includes a socalled “Speed and Load Angle
(SLA) output, allowing the creation of stall detection algorithms and
control loops to adjust torque and speed based on the motor’s back
electromotive force (BEMF).
The NCV70522MN is implemented in I2T100 technology, enabling
both high voltage analog circuitry and digital functionality on the
same chip. The device is fully compatible with automotive voltage and
temperature requirements and suited to general purpose stepper motor
applications in the automotive, industrial, medical and marine
domains.
Features
Dual HBridge for 2 Phase Stepper Motors
Programmable PeakCurrent up to 1.2 A Continuous (1.5 A Short
Time), Using a 5Bit Current DAC
OnChip Current Translator
SPI Interface
Speed and LoadAngle Output
7 Step Modes from FullStep up to 32 MicroSteps
Fully Integrated CurrentSense
PWM Current Control with Automatic Selection of Fast and Slow
Decay
Low EMC PWM with Selectable Voltage Slopes
Active Flyback Diodes
Full Output Protection and Diagnosis
Thermal Warning and Shutdown
Digital IO’s Compatible with 5 V and 3.3 V Microcontrollers
Integrated 5 V Voltage Regulator to Supply an External
Microcontroller
Integrated Reset Function to Reset External Microcontroller
Integrated Watchdog Function
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AECQ100
Qualified and PPAP Capable
These are PbFree Devices*
http://onsemi.com
PINOUT
32 31 30 29 28 27 26 25
GND 1
DI 2
CLK 3
NXT 4
DIR 5
ERR 6
SLA 7
8
NCV70522MN
24 GND
23 GND
22 MOTXN
21 MOTXN
20 MOTYN
19 MOTYN
18 GND
17 GND
9 10 11 12 13 14 15 16
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 27 of this data sheet.
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2012
1
June, 2012 Rev. 0
Publication Order Number:
NCV70522MN/D


  ON Semiconductor Electronic Components Datasheet  

NCV70522MN Datasheet

Micro-Stepping Motor Driver

No Preview Available !

NCV70522MN
Table of Contents
Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . 4
Equivalent Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Package Thermal Characteristics . . . . . . . . . . . . . . . . . . . . 5
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended Operation Conditions . . . . . . . . . . . . . . . . 5
DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
AC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SPI Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical Application Schematic . . . . . . . . . . . . . . . . . . . . . . 10
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Warning, Error Detection and Diagnostics Feedback . . 18
SPI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
http://onsemi.com
2



Part Number NCV70522MN
Description Micro-Stepping Motor Driver
Maker ON Semiconductor
Total Page 3 Pages
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