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LM628N-6 PDF预览

LM628N-6

更新时间： 2024-11-24 22:11:19
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器
页数 文件大小 规格书
24页 633K
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Precision Motion Controller

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LM628N-6 数据手册

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November 1999  
LM628/LM629  
Precision Motion Controller  
General Description  
Features  
n 32-bit position, velocity, and acceleration registers  
n Programmable digital PID filter with 16-bit coefficients  
n Programmable derivative sampling interval  
n 8- or 12-bit DAC output data (LM628)  
n 8-bit sign-magnitude PWM output data (LM629)  
n Internal trapezoidal velocity profile generator  
n Velocity, target position, and filter parameters may be  
changed during motion  
The LM628/LM629 are dedicated motion-control processors  
designed for use with a variety of DC and brushless DC  
servo motors, and other servomechanisms which provide a  
quadrature incremental position feedback signal. The parts  
perform the intensive, real-time computational tasks required  
for high performance digital motion control. The host control  
software interface is facilitated by a high-level command set.  
The LM628 has an 8-bit output which can drive either an  
8-bit or a 12-bit DAC. The components required to build a  
servo system are reduced to the DC motor/actuator, an in-  
n Position and velocity modes of operation  
n Real-time programmable host interrupts  
n 8-bit parallel asynchronous host interface  
n Quadrature incremental encoder interface with index  
pulse input  
cremental encoder,  
a DAC, a power amplifier, and the  
LM628. An LM629-based system is similar, except that it  
provides an 8-bit PWM output for directly driving H-switches.  
The parts are fabricated in NMOS and packaged in a 28-pin  
dual in-line package or a 24-pin surface mount package  
(LM629 only). Both 6 MHz and 8 MHz maximum frequency  
versions are available with the suffixes -6 and -8, respec-  
tively, used to designate the versions. They incorporate an  
SDA core processor and cells designed by SDA.  
n Available in a 28-pin dual in-line package or a 24-pin  
surface mount package (LM629 only)  
DS009219-1  
FIGURE 1. Block Diagram  
TRI-STATE® is a registered trademark of National Semiconductor Corporation.  
© 1999 National Semiconductor Corporation  
DS009219  
www.national.com  
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LM628N-6 替代型号

型号 品牌 替代类型 描述 数据表
LM628N-6 TI

功能相似

 LM628/LM629 Precision Motion Controller

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