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LTC6804-1 Production
The LTC6804 is a 3rd generation multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of...
Datasheet
LTC6804-1 on Analog.com

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LTC6804 isoSPI Layout Guidelines



		

			

									
					    kaq
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Apr 12, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Does the isoSPI Guideline number 2 found in the LTC6804 data sheet apply if I am using the LTC6804-1 in , specifically number 2, apply if I am connecting multiple LTC6804-1's on the same PCB as shown in Figure 44 of the data sheet?  What is the purpose of not extending the V- ground plane under the transformer?
    

    

    

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      •  Analog Employees  
      
            
			                            
                        
                on Apr 12, 2022 5:05 AM
            
            
					
      
	
      

		
		
      
					
      Extending the V- ground plane under the transformer could allow noise from the transformer to couple into the ground plane.  Placing a slot helps prevents this.  It's the same reason we don't recommend extending the ground plane under the isoSPI connector and traces before the transformer.
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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