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ADP1032 specification



		

			

									
					    JaeKyung
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 20, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi, everyone.
    

    I have question on datasheet of ADP1032.
    

    As it is written, 
    Specification of datasheet is 
    VINP voltage (VINP) = 24 V and ambient temperature (TA) = 25°C for typical specifications.
    Minimum and maximum specifications apply over the entire operating range of 4.5 V ≤ VINP ≤ 60 V and −40°C ≤ TJ ≤ +125°C, unless otherwise noted.
    

    Accordingly, the minimum value of Current-Limit Threshold (ILIM(FLYBACK)) without note is 400 mA, the typical value is 440 mA, and the maximum value is 480 mA.
     
    

    I design board expecting 400 mA from VINP of 5V ~ 12V, but it does not work.
    

    

     
    

    I think figures 4 and 7 appear to have low IOUT limitations in VINP of 5V.
    

    

    I wonder ADP1032 does work that I expect, or not.
    

    

    Sincery,
    JaeKyung.
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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													+1
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Jan 3, 2022 11:57 AM
            
            
					
      
	
      

		
		
      
					
      Hi JaeKyung,
      

      The ILim(flyback) specs are the current limit on the flyback primary side switch not the specs of the output current thus the with lower supply voltage (means lower input power) will give you lower output power as shown in figure 4 and 7. Increasing the supply voltage will provide more output power thus having higher output current shown in the plots.
      

      Apologies for the late response, I was out for the holidays. Happy new year!
      

      Thanks and regards,
      

      Jefferson
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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													+1
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Jan 3, 2022 11:57 AM
            
            
					
      
	
      

		
		
      
					
      Hi JaeKyung,
      

      The ILim(flyback) specs are the current limit on the flyback primary side switch not the specs of the output current thus the with lower supply voltage (means lower input power) will give you lower output power as shown in figure 4 and 7. Increasing the supply voltage will provide more output power thus having higher output current shown in the plots.
      

      Apologies for the late response, I was out for the holidays. Happy new year!
      

      Thanks and regards,
      

      Jefferson
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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