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MAX6684 Production
The MAX6684 is an integrated fan-failure detector that detects when a fan exhibits excessive underspeed or a locked rotor. This device is especially well...
Datasheet
MAX6684 on Analog.com

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Ability to clear the Fail output

		
	
				

			

									
					    JSS959
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Nov 13, 2025 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user inquired about clearing the fail output on the MAX6684 when a fan falls below the RPM limit. The final answer confirmed that the MAX6684 does not latch fault conditions, providing continuous monitoring without the need for manual fault clearance. No specific configuration for clearing the latch was required.
                        	    

                
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Category: Hardware

    		        		            		    
Product Number:  MAX6684  

    		        		    		    

		    		    
		    			

			    
HI,


I want to ask if there is any ability to clear the Fail output once a fan has been detected to have fallen below the RPM limit? I assume that once a failure has been detected that the latch then engages, my question is related to resetting the latch, I've used similar IC's that allow you to clear the fail output in case of false failure alerts. Would I need to power cycle the IC to unlatch the SR latch or is it possible to use the OFF as a 'clear' and to turn the fan off? 


Kind Regards,




Jamie

			

			
									
		                             
                        

    

                                            
                 hardware
                
                                                    
                 MAX6684
                
                                                    
                 Power Control
                
                                                    
                 Fan Speed Controllers
                
                                
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


				
	









	




	
			








	






































     



















		        
        

            
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