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AMIS-30623AANA 参数 Datasheet PDF下载

AMIS-30623AANA图片预览
型号: AMIS-30623AANA
PDF下载: 下载PDF文件 查看货源
内容描述: 林微Motordriver [LIN Microstepping Motordriver]
分类和应用: 电动机控制
文件页数/大小: 67 页 / 3352 K
品牌: AMI [ AMI SEMICONDUCTOR ]
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AMIS-30623 LIN Microstepping Motordriver  
Data Sheet  
15.3.6. Charge Pump Monitoring  
If the charge pump voltage is not sufficient for driving the high side transistors (due to a failure), an internal HardStop command is  
issued. This is acknowledged to the master by raising flag <CPFail> (available with command GetFullStatus).  
In case this failure occurs while a motion is ongoing, the flag <StepLoss> is also raised.  
15.3.7. Electrical Defect on Coils, Detection and Confirmation  
The principle relies on the detection of a voltage drop on at least one transistor of the H-bridge. Then the decision is taken to open the  
transistors of the defective bridge.  
This allow to detect the following short circuits:  
External coil short circuit  
Short between one terminal of the coil and Vbat or Gnd  
One cannot detect internal short in the motor  
Open circuits are detected by 100% PWM duty cycle value during a long time  
Table 24: Electrical Defect Detection  
Pins  
Fault mode  
Yi or Xi  
Short circuit to GND  
Short circuit to Vbat  
Open  
Yi or Xi  
Yi or Xi  
Y1 and Y2  
X1 and X2  
Xi and Yi  
Short circuited  
Short circuited  
Short circuited  
AMI Semiconductor – June 2006, Rev 3.0  
37  
www.amis.com