Products In This Thread

LT4363 Recommended for New Designs
The LT4363 surge stopper protects loads from high voltage transients. It regulates the output during an overvoltage event, such as load dump in vehicles...
Datasheet
LT4363 on Analog.com

LT4356-1 Recommended for New Designs
The LT4356 surge stopper protects loads from high voltage transients. It regulates the output during an overvoltage event, such as load dump in automobiles...
Datasheet
LT4356-1 on Analog.com

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LT4363 & LT4356 : Mos and Rsense



		

			

									
					    Snow.Hung
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 9, 2019 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi,
    

    I can't figure out what's the benefit between this. ( LT4363 & LT4356 : Mos and Rsense )
    

    Why LT4363 change the location, Mos in front of Rsense.
    

    Does there any benefit on it?
    

    Please kindly help with this.
    

    Thanks a lot !
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			


				
	









	
      
	

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													+1
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Jan 16, 2019 10:24 PM
            
            
					
      
	
      

		
		
      
					
      Hi Snow.Hung,
      

      The LTC 4363 with Rsense moved on the downstream of Mos enables current limit functionality even in case of high voltage surges (greater than 100V) whereas in case of LTC 4356 , the Vcc and Sns pins have abs. max of 100V and in case of high voltage surges (like 250 V in load dump scenario) , these pins need to be clamped by a TVS , thus current limit feature cannot be used.

      In summary , LTC 4363 provides high voltage surge stopper along with current limit feature , whereas  LTC 4356 current limit can be used for surges less than 100 V. 
      Hope this helps!
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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