Products In This Thread

LT3763 Production
The LT3763 is a fixed frequency, synchronous, step-down DC/DC controller designed to accurately regulate output currents up to 20A. The average current...
Datasheet
LT3763 on Analog.com

  • State Verified Answer
  • Replies 11 replies
  • Subscribers 38 subscribers
  • Views 3209 views
  • Users 0 members are here
Options
Related 

        

            Post
             Go back to editing
        

    

    


    

    









		












	
	
			
	
			
		
	
	
		

		
Constant Current Source Design which can source 20A current



		

			

									
					    Bivin
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Oct 25, 2017 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi
    
 
    Suggest a constant current regulator which can source 20A current and support a voltage output of minimum 100V. 
    
 
    If modification is made, can i use LT3763 to operate at 100V like by using GATE drivers.
    
 
    Regards
    
 
    Bivin George
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



Parents
	
      
	

    • 
	
      



	
		
	
	



      
	
      
		
      
							
					
      
		
      
			
													0
							
			
				
									
							        
			
			
			
        
            
			                            
                        
                on Oct 28, 2017 11:57 AM
            
            
					
        
	
        

		
		
        
					
        Hi 
        
 
        In LTC3779 data-sheet it is mentioned, " Constant-Current Regulation (IAVGSNSP and IAVGSNSN Pins)The  LTC3779  provides  a  constant-current  regulation loop for either input or output current. A sensing resistor close  to  the  input  or  output  capacitor  will  sense  the  input  or  output  current.  When  the  current  exceeds  the  programmed  current  limit,  the  voltage  on  the  ITH  pin  will  be  pulled  down  to  maintain  the  desired  maximum input or output current. "
        
 
        Kindly explain the above.
        
 
        Also  mentioned that " The only IC to survive 100V output is LTC3779 which can also work as a current source. "
        
 
        If LTC3779 can't be used, suggest an IC which can be used as constant current regulator to regulate current of 14A at 100V.
        
 
        What about LT3796 or LT3756 IC to regulate current at 100V with 14A. Please reply asap.
        
 
        ltc3779ltc3796 lt3756
        
 
        Regards
        
 
        Bivin George
        
			
        

		
		
		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

        • 

	
      



Reply

        


      • 
	
        



	
		
	
	



        
	
        
		
        
							
					
        
		
        
			
													0
							
			
				
									
							        
			
			
			
          
            
			                            
                        
                on Oct 28, 2017 11:57 AM
            
            
					
          
	
          

		
		
          
					
          Hi 
          
 
          In LTC3779 data-sheet it is mentioned, " Constant-Current Regulation (IAVGSNSP and IAVGSNSN Pins)The  LTC3779  provides  a  constant-current  regulation loop for either input or output current. A sensing resistor close  to  the  input  or  output  capacitor  will  sense  the  input  or  output  current.  When  the  current  exceeds  the  programmed  current  limit,  the  voltage  on  the  ITH  pin  will  be  pulled  down  to  maintain  the  desired  maximum input or output current. "
          
 
          Kindly explain the above.
          
 
          Also  mentioned that " The only IC to survive 100V output is LTC3779 which can also work as a current source. "
          
 
          If LTC3779 can't be used, suggest an IC which can be used as constant current regulator to regulate current of 14A at 100V.
          
 
          What about LT3796 or LT3756 IC to regulate current at 100V with 14A. Please reply asap.
          
 
          ltc3779ltc3796 lt3756
          
 
          Regards
          
 
          Bivin George
          
			
          

		
		
		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

          • 


        


Children
	
        No Data