[方案]STL6482H微步距步进马达驱动办理方案

ST公司的l6482H是接纳模拟混淆信号技能的微步距步进马达驱动器,集成了用来驱车两相双极MOSFET功率级的两个全桥栅极驱动器.接纳全新的电流控制,可得到者/16的微步距,工作电压7.5 V-85 V.本文先容了L6482H主要特点,框架图,应用电路图及其质料清单,评估板EVAL6482H主要特点,电路图,质料清单和PCB文件设计原理图.

The L6482 device, realized in analog mixedsignal technology, is an advanced fully integratedsolution suitable for driving two-phase bipolarstepper motors with microstepping.

It integrates a dual full bridge gate driver forN-channel MOSFET power stages with embedded non dissipative overcurrent protection.

Thanks to a new current control, a 1/16microstepping is achieved through an adaptive decay mode which outperforms traditionalimplementations. The digital control core can generate user defined motion profiles withacceleration, deceleration, speed or target position easily programmed through a dedicatedregister set. All application commands and dataregisters, including those used to set analogvalues (i.e. current protection trip point,deadtime,PWM frequency, etc.) are sent through a standard5-Mbit/s SPI. A very rich set of protections(thermal, low bus voltage, overcurrent and motorstall) makes the L6482 device “bullet proof”, asrequired by the most demanding motor controlapplications.

L6482H主要特点:

 Operating voltage: 7.5 V - 85 V
 Dual full bridge gate driver for N-channelMOSFETs
 Fully programmable gate driving
 Embedded Miller clamp function
 Programmable speed profile
 Up to 1/16 microstepping
 Advanced current control with auto-adaptivedecay mode
 Integrated voltage regulators
 SPI interface
 Low quiescent standby currents
 Programmable non dissipative overcurrentprotection
 Overtemperature protection

L6482H应用:

 Bipolar stepper motor

图1{京电港论坛}. L6482H框架图

图2{京电港论坛}. L6482H应用电路图
应用电路图中质料清单:

评估板EVAL6482H

The EVAL6482H demonstration board is a highpower microstepping motor driver. In combinationwith the STEVAL-PCC009V2 communicationboard and the evaluation software, the boardallows the user to investigate all the features ofthe L6482 device. In particular, the board can beused to check the advanced current control and toregulate the L6482 parameters in order to fit theapplication requirements.

The EVAL6482H supports the daisy chainconfiguration making it suitable for the evaluationof the L6482 in multi motor applications.

评估板EVAL6482H主要特点:

 Voltage range from 10.5 V to 85 V
 Low Rds(ON) MOSFETs in DPAK package
 SPI with daisy chain feature
 FLAG and BUSY LED indicators
 Flexible supply voltage management
 Suitable for use in combination with theSTEVAL-PCC009V2

评估板EVAL6482H应用:

 High power bipolar stepper motor driving

图3{京电港论坛}.评估板EVAL6482H外形图
评估板EVAL6482H主要指标:


图4{京电港论坛}.评估板EVAL6482H电路图(1)

图5{京电港论坛}.评估板EVAL6482H电路图(2)
评估板EVAL6482H质料清单:



图6{京电港论坛}.评估板EVAL6482H PCB设计原理图(顶层)

图7{京电港论坛}.评估板EVAL6482H PCB设计原理图(内2层)

图8{京电港论坛}.评估板EVAL6482H PCB设计原理图(内3层)

图9{京电港论坛}.评估板EVAL6482H PCB设计原理图(底层)
详情请复制打开此衔接地址:
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00067131.pdf
和http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00068871.pdf?s_searchtype=keyword
以及http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/eval6482h_schem.pdf

DM00067131.pdf
DM00068871.pdf
eval6482h_bom.pdf
eval6482h_schem.pdf