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MAX3160 Production
The MAX3160/MAX3161/MAX3162 are programmable RS-232/RS-485/422 multiprotocol transceivers. The MAX3160/MAX3161 are pin programmable as a 2TX/2RX RS-232...
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MAX3160 on Analog.com

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MAX3160EAP+ Power Question



		

			

									
					    jackz99
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Apr 26, 2023 
				
			
			
		
    

				
		
    
		    		    
		    
		    		            		        
    Category: Datasheet/Specs
    
    		        		        		    		    	
			
    Hello, I am trying to use the MAX3160EAP+ as a converter from Serial TTL (3.3V) to RS-232 serial voltage levels. The application is for a serial console port on a single-board computer that I am interfacing with. I am doing some typical and max power estimates for a PCB design in order to provide data for my thermal analyst. The datasheet states a Continuous Power Dissipation for the 20-Pin SSOP at 952mW. Is this the max power value that I should use? Also, could I get some advice on calculating typical power based on my application?
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
			                            
                        
                on May 3, 2023 2:32 AM
            
            
					
      
	
      

		
		
      
					
      Hello,
      

      The 952 mW is the max power that  the package can handle without damage. You can roughly estimate the total current consumption in your system  based on the  load / data rate and the TOC plots in the datasheet.  I would say it is around 60mA in typical operating condition with  two TX and RX  all ON. At VCC= 5V, the power consumption is around 300mV. But if  fault condition, such as  as port(s)  short to GND, is taken into account,  the current draw will be much higher, about 60mA(max) for each channel. 
      

      Best Regards,
      

      Zhongmin Yu
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
						
				
				
		
		
      
			
		
      
	
      

      

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													+1
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on May 3, 2023 2:32 AM
            
            
					
      
	
      

		
		
      
					
      Hello,
      

      The 952 mW is the max power that  the package can handle without damage. You can roughly estimate the total current consumption in your system  based on the  load / data rate and the TOC plots in the datasheet.  I would say it is around 60mA in typical operating condition with  two TX and RX  all ON. At VCC= 5V, the power consumption is around 300mV. But if  fault condition, such as  as port(s)  short to GND, is taken into account,  the current draw will be much higher, about 60mA(max) for each channel. 
      

      Best Regards,
      

      Zhongmin Yu
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
						
				
				
		
		
      
			
		
      
	
      

      

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