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NCV70521 PDF预览

NCV70521

更新时间: 2024-11-26 05:52:03
品牌 Logo 应用领域
安森美 - ONSEMI 驱动器电机
页数 文件大小 规格书
28页 281K
描述
Micro-Stepping Motor Driver

NCV70521 数据手册

 浏览型号NCV70521的Datasheet PDF文件第2页浏览型号NCV70521的Datasheet PDF文件第3页浏览型号NCV70521的Datasheet PDF文件第4页浏览型号NCV70521的Datasheet PDF文件第5页浏览型号NCV70521的Datasheet PDF文件第6页浏览型号NCV70521的Datasheet PDF文件第7页 
AMIS-30521, NCV70521  
AMIS-30521/NCV70521  
Micro-Stepping Motor  
Driver  
Introduction  
http://onsemi.com  
PINOUT  
The AMIS30521/NCV70521 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  
AMIS30521/NCV70521 contains a currenttranslation table. It takes  
the next microstep depending on the clock signal on the “NXT” input  
pin and the status of the “DIR” (= direction) register or input pin. The  
chip provides a socalled “Speed and Load Angle” output. This allows  
the creation of stall detection algorithms and control loops based on  
loadangle to adjust torque and speed. It is using a proprietary PWM  
algorithm for reliable current control.  
32 31 30 29 28 27 26 25  
GND  
DI  
1
2
3
4
5
6
7
8
24 GND  
23 GND  
CLK  
NXT  
22 MOTXN  
21 MOTXN  
20 MOTYN  
19 MOTYN  
18 GND  
2
DIR  
The AMIS30521/NCV70521 is implemented in I T100  
ERR  
technology, enabling both high voltage analog circuitry and digital  
functionality on the same chip. The chip is fully compatible with the  
automotive voltage requirements.  
SLA  
17  
GND  
The 521 is ideally suited for general purpose stepper motor  
applications in the automotive, industrial, medical and marine  
environment. The AMIS30521 is intended for use in industrial  
applications. The NCV70521 version is qualified for use in  
automotive applications.  
9
10 11 12 13 14 15 16  
PC20070309.2  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 26 of this data sheet.  
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 Full Stepup 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  
NCV Prefix for Automotive and Other Applications Requiring Site  
and Control Changes  
These are PbFree Devices*  
*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, 2009  
1
Publication Order Number:  
May, 2009 Rev. 1  
AMIS30521/D  
 

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