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LTC2924 Recommended for New Designs
The LTC2924 is a power supply sequencer designed for use with external N-channel MOSFETs or power supplies with shutdown pins. Four power supplies can...
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LTC2924 on Analog.com

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LTC2924-why done pin pull up has to be VCC

		
	
				

			

									
					    Shengnan
					
							


			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 20, 2023 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  LTC2924  
    
    		        		    		    
    
		    		    
		    			
    
			    
    VCC=5V
    

    done pin pull up =1.8V
    

    Done pin doesn't go low after power up. Searching history, look like pullup has to be vcc, can someone explain the mechanism?
    
			
    
			
									    
    
			        
    Edit Notes
    
    				added part number in title
    
[edited by: Shengnan at 6:55 PM (GMT -5) on 20 Dec 2023]
				
    
						
		                             
                        

    
    
                                            
                 hardware
                
                                                    
                 Analog Sequencers
                
                                                    
                 LTC2924
                
                                                    
                 Power Monitor  Control  and Protection
                
                                                    
                 Sequencers  Trackers  and Margining Controllers
                
                                        
                                            
                
                
                                
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