• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 29 subscribers
  • Views 288 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV8432: No intentional freewheel with DRV8432. Short circuiting a DC-Motor

Franz Braun
Prodigy 130 points
Part Number: DRV8432


Dear TI Team,

according to the manual, I can not intentionally run a motor current over the body diodes in the freewheel, but can operate the motor either in clockwise, anticlockwise or short circuit. Can I safely operate a motor between clockwise and short-circuit without paying attention to diode reverse recovery, or the load on the motor due to the short circuit?

Yours sincerely

Franz Braun




								


				
				

				
			

		

			
						
									
                			    			            
						
						
			
			
			
			                        
			

				

			


			

		


				    			

						

















	

	

					
    
	
    





		
	
  • 
		
    
			 


	
			
		
	









    
	
    
		
    
							
					
    
		
    
			
													0
							
			
				
									
							
						
				
			
			
			
					
    
	
    
	                                    
                      
    
                        
                          TI__Guru**
                        114905 points
                      
    
                          
                   		
		
    
					
    Hi Franz,
    

    Can I safely operate a motor between clockwise and short-circuit without paying attention to diode reverse recovery, or the load on the motor due to the short circuit?
    


    If you mean both outputs low (also referred to as slow decay) when you say short-circuit in the question above, the answer is yes.
    

    The device is designed to PWM between driver (clockwise/counterclockwise) and slow decay (outputs low).
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    

	            
                 	
	
    
				
		                
                
                
                
                
                
                
        		
		
				
    
			
		
    
		
		 
		
		
     
    
	
    

    
			
    
			
    
		
    

		
    
	
    •