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The MAX16046/MAX16048 EEPROM-configurable system managers monitor, sequence, track, and margin multiple system voltages. The MAX16046 manages up to twelve...
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MAX16046 on Analog.com

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Already SMD, unable to burn-in program to EEPROM

		
	
				

			

									
					    LukeJiang
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Oct 19, 2025 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  MAX16046ETN, MAX16046 
    
    		        		    		    
    
		    		    
		    			
    
			    
    We did not perform an erase operation on the EEPROM inside before SMD, which resulted in us being unable to burn a new program to this chip after assembling it into a finished product.
    1.How did this situation occur?
    

    2.Do I have to erase all the programs in the EEPROM before SMD?
    

    3. How to handle those that have already been assembling it into a finished product before they can be used normally? Can software solve this?
    
			
    
			
									
		                             
                        

    
    
                                            
                 MAX16046
                
                                                    
                 hardware
                
                                                    
                 eeprom
                
                                                    
                 Supply Sequencers
                
                                                    
                 MAX16046ETN
                
                                        
                                            
                
                
                                        
                                            
                
                
                                        
                                            
                
                
                                
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Nov 7, 2025 2:06 PM
            
            
						
			            		
      
		
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      Hi  

      Thank you for your inquiry. Mentioning  for assistance.
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
				
				
				
		
		
      
			
		
      
	
      

      

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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Nov 10, 2025 4:15 PM
            
            
						
			            		
      
		
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      Hi @LukeJiang,
      

      Thanks for providing the information. Please see my response below.
      

      1.How did this situation occur? I understand that board board placement may require higher temperature upon component placement, are the parts installed using soldering reflow? Excessive heat may cause data loss/corruption among EEPROMs. Were the parts check with EEPROM data prior placement? Additional information are needed to further check the sources, batch code for traceability.
      

      2.Do I have to erase all the programs in the EEPROM before SMD? This is not necessary.
      

      3. How to handle those that have already been assembling it into a finished product before they can be used normally? Can software solve this?
      

      This article is helpful and good to consider dealing those part which are already installed.
      

      

      Regards,
      

      Chris
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
				
				
				
		
		
      
			
		
      
	
      

      

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