返回主站 | 设为首页 | 加入收藏      
   
 
  首页 关于我们 产品展示 方案设计 技术分享 行业资讯 联系我们  
 
马达驱动IC/步进电机控制芯片
直流电机驱动芯片
步进电机驱动芯片(并行接口)
步进电机驱动芯片(步进/方向接口&串行接口)
功放IC
音量控制IC
TFT-Driver IC
TFT-LCD 时序控制IC
触摸屏控制IC
LED照明驱动IC
锁相环IC
USB声卡IC
功率半导体器件
STN Driver IC
视频IC
HDMI IC
FM解调IC
模拟开关阵列IC
LCD显示驱动IC
马达驱动IC/步进电机控制芯片
电源管理IC
电容式触摸感应IC
LED音乐频谱IC
音频CODEC IC
Lightning闪电数据接口IC
 
名称:
种类:
类别:

电 话:0755-82863877
传 真:0755-82863778
手 机:13242913995

E-MAIL:panxia168@126.com

联系人:潘先生
地 址:深圳市宝安西乡航城大道航城创新创业园A4栋218

 
当前位置:首页 -> 方案设计
A5950直流马达驱动方案
文章来源: 更新时间:2017/7/4 13:31:00
Allegro MicroSystems公司的A5950是脉宽调制(PWM)控制的直流马达驱动器,峰值电流高达±3 A,工作电压高达40V,内部保护电路包括过流保护,马达线对地或对电源保护,带滞后的热关断,VBB欠压监视和过流保护,故障输出.本文介绍了A5950主要特性和优势,功能框图以及A5950EU(QFN封装)演示板和A5950LP(eTSSOP封装)演示板的电路图,材料清单和PCB设计图.

Designed for pulse-width-modulated (PWM) control of DCmotors, the A5950 is capable of peak output currents up to±3 A and operating voltages up to 40 V.

Input terminals are provided for use in controlling the speed anddirection of a DC motor with externally applied PWM controlsignals. Internal synchronous rectification control circuitry isprovided to lower power dissipation during PWM operation.

Internal circuit protection includes overcurrent protection,motor lead short to ground or supply, thermal shutdown withhysteresis, undervoltage monitoring of VBB, and crossovercurrentprotection.

The A5950 is supplied in a low-profile 4 mm×4 mm 16-contactQFN (suffix “EU”) package with wettable flank option (suffix“-P”),or a 16-lead eTSSOP (suffix “LP”),all three with exposedpower tab for enhanced thermal performance.

A5950主要特性和优势:

• Overcurrent protection (OCP)
• Motor lead short-to-ground protection
• Motor lead short-to-battery protection
• Motor short protection
• Low-power standby mode
• Fault output
• Adjustable current limit option
• Current-to-voltage output
• Synchronous rectification – high-side
• Internal UVLO
• Crossover-current protection
• Thermal warning and shutdown function
• AEC-Q100 Grade 1 qua
lified – K version

图1.A5950功能框图

图2.A5950EU(QFN封装)演示板电路图
A5950EU(QFN封装)演示板材料清单:


图3.A5950EU(QFN封装)演示板PCB设计图

图4.A5950LP(eTSSOP封装)演示板电路图
A5950LP(eTSSOP封装)演示板材料清单:


图5.A5950LP(eTSSOP封装)演示板PCB设计图


 
 
 
    相关产品  
 
深圳市永阜康科技有限公司  服务热线:0755-82863877 手机:13242913995