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LTC3558 Production
The LTC3558 is a USB battery charger with dual high ef?ciency switching regulators. The device is ideally suited to power single-cell Li-Ion/Polymer based...
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LTC3558 on Analog.com

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LIPO Power Management



		

			

									
					    NidhinVarghese
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Feb 11, 2020 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi, 
     
     Facing issues with LIPO battery charging while using LTC3558. 
     Battery fault occurs while charging a good battery which was discharged (below 2.5V).
     
     Would like to know Is it possible to 
     
     1. Increase the charge current ,in LTC3558, to a higher value in trickle charged mode while cell voltage is between 2.5-2.9V 
     
     2. Are there any compatible chip which gives these user flexibility. We would like a soft control to increase current in case battery fault occurs. 
     
    
									
			        
		
    

				
						
        

    
    Tags: 
                                            
                 power management
                
                                                    
                 Battery Charger Plus DC/DC
                
                                                    
                 LTC3558
                
                                                    
                 battery management
                
                                
            
    
    
    

		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Feb 18, 2020 2:58 PM
            
            
					
      
	
      

		
		
      
					
      The only way I know of to reduce the trickle charge is to change the Prog resistor. That will also change the full charge current.
      

      I know there are other parts out there that have different trickle charge currents and longer/programable timers. I do not know what they are off the top of my head. One part you might consider looking at is the LTC3556. This also has a buck-boost and two bucks with the power path.  
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
						
				
				
		
		
      
			
		
      
	
      

      

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													0
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Feb 18, 2020 2:58 PM
            
            
					
      
	
      

		
		
      
					
      The only way I know of to reduce the trickle charge is to change the Prog resistor. That will also change the full charge current.
      

      I know there are other parts out there that have different trickle charge currents and longer/programable timers. I do not know what they are off the top of my head. One part you might consider looking at is the LTC3556. This also has a buck-boost and two bucks with the power path.  
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
						
				
				
		
		
      
			
		
      
	
      

      

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