AS5040 磁传感器开发板

enly

AS5040是一种非接触式磁旋转编码器进行精确的360°的整圈角度测量。它是系统级芯片，结合集成霍尔元件，模拟前端和数字信号处理在单个器件中。来测量角度，仅仅需要一个简单的2极磁体，旋转在芯片的中心，磁体可以放置上方或下方集成电路。这种绝对角度测量提供了磁铁的角位置，每转0.35度=1024的位置分辨率为即时指示。该数字数据可以作为一个串行比特流以及PWM信号。Key Features

       

• ƒ Contactless high resolution rotational position encoding over a full turn of 360 degrees       
  
• ƒ Two digital 10bit absolute outputs:
  
         
  
  •  Serial interface and       
    
  •  Pulse width modulated (PWM) output
    
         
  
• ƒ Three incremental output modes:
  
         
  
  •  Quadrature A/B and Index output signal       
    
  •  Step / Direction and Index output signal       
    
  •  3-phase commutation for brushless DC motors       
    
  •  10, 9, 8 or 7 bit user programmable resolution ƒ
    
         
  
• User programmable zero / index position       
  
• ƒ Failure detection mode for magnet placement monitoring and loss of power supply ƒ       
  
• Rotational speeds up to 30,000 rpm ƒ       
  
• Push button functionality detects movement of magnet in Z-axis ƒ       
  
• Serial read-out of multiple interconnected AS5040 devices using Daisy Chain mode ƒ       
  
• Wide temperature range: - 40°C to + 125°C ƒ       
  
• Fully automotive qualified to AEC-Q100, grade 1 ƒ       
  
• Small Pb-free package: SSOP 16 (5.3mm x 6.2mm)