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          基于NCV7680設計的汽車LED照明技術
          
						
          
				作者：
				時間：2010-11-22
				來源：網(wǎng)絡
				
				
				
				
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          NCV7680-NCV3163評估板

          The NCV7680 is an octal LED driver designed for automotive LED rear combination lamps. External programmability of the NCV7680 allows the user to set the tail current and stop currents using a single resistor for each function. An optional external FET is used to help distribute power for high power systems. 

          The NCV7680-NCV3163 Evaluation Board includes both an NCV7680 (octal driver) and NCV3163 (Boost Regulator). The NCV3163 allows for an increased number of LEDs per NCV7680 output by boosting the LED string anode voltage. The DIAG pin is brought out for reporting of open circuit conditions.

          NCV7680-NCV3163評估板特性 ：

          STOP Input Switch 

          DIAG Output 

          LED Isolation 

          STOP Programming Current 

          External PWM Input 

          Adjustable Boost Circuit with Internal Switch 

          RoHS Compliant 



          圖9。NCV7680-NCV3163評估板外形圖

          圖10。NCV7680-NCV3163評估板電路圖
          本文引用地址：http://www.ex-cimer.com/article/169142.htm          
				
            
                
			
							
          
                
			            
          
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