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Li-Ion battery Charger



		

			

									
					    70Vette69
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 20, 2016 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    My application is to use a Li-Ion battery as a backup to the main power.  This means that 99% of its life will be at full charge.  When the main power is removed I need the battery to take over.  I need a charger for the battery that can accommodate this application.  It is for a single cell Li-Ion.  I need it to protect against Over Voltage, Under Voltage, and battery shorted as the battery doesn't have the protection ckt built in.  Can you give me a list of devices that would fit my requirements.  Temp range is 0-60 but I prefer -40 to 85C.
    
 
    Thanks
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
			                            
                        
                on Jan 29, 2016 8:28 PM
            
            
					
      
	
      

		
		
      
					
      Bill,
      
 
      Without knowing about your specific voltage and current requirements,.you may want to take a look at a product such as the ADP2291.  It is a linear charging IC that would keep your li-ion battery charged.  Then you could use a battery backup IC such as the ADM690 to switch between power sources.
      
 
      Thanks,
      
 
      Travis
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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      •  Analog Employees  
      
            
			                            
                        
                on Jan 29, 2016 8:28 PM
            
            
					
      
	
      

		
		
      
					
      Bill,
      
 
      Without knowing about your specific voltage and current requirements,.you may want to take a look at a product such as the ADP2291.  It is a linear charging IC that would keep your li-ion battery charged.  Then you could use a battery backup IC such as the ADM690 to switch between power sources.
      
 
      Thanks,
      
 
      Travis
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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