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LTC7000 IC driving capability



		

			

									
						Rudra
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Apr 2, 2021 
				
			
			
		


				
		

		    		    
		    
		    	
			
Hello,


In one of our project we are planing to use to drive the IPTG014N10NM5 MOSFET which has large gate to drain charge of 51nC max.


We are using Mosfet as a switch, to drive 28V/25A of load. MosFET has Rdson 1.4mohm. Does the LTC7000 IC will be able to drive large capacitance and operate the mosfet only in saturation and cut off region and not cause high frequency oscillations.


If not, Can you please suggest the method to reduce the oscillations so that power dissipation will be minimum.


Thanks 

								


				
				
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	

		
	















	

	

					



			








	
	
	
	



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                                 Analog Employees 
                                
                            
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                on Apr 7, 2021 6:32 PM
            
            
					
    
	
    

		
		
    
					
    Hello. From another (LTC7001) post: Gate driver resistance (TG pull-up = 2.2ohms typical and TG pull-down = 1ohm typical) is specified. Peak driver current is not specified, but it is approximately 1.25A pull up and 2.25A pull down (rise and fall times could also be used to estimate the peak driver current). This should help with determining if turn-on time is acceptable to you.
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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													0
							
			
				
									
							        
            
                                                                                                        
      
                            
    • 
                                 Analog Employees 
                                
                            
      • 
                        
     
                                                           			
			                            
                        
                on Apr 7, 2021 6:32 PM
            
            
					
    
	
    

		
		
    
					
    Hello. From another (LTC7001) post: Gate driver resistance (TG pull-up = 2.2ohms typical and TG pull-down = 1ohm typical) is specified. Peak driver current is not specified, but it is approximately 1.25A pull up and 2.25A pull down (rise and fall times could also be used to estimate the peak driver current). This should help with determining if turn-on time is acceptable to you.
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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