资 源 简 介
The ADM4210 is a hot swap controller that safely enables aprinted circuit board to be removed and inserted to a livebackplane. This is achieved using an external N-channel powerMOSFET with a current control loop that monitors the loadcurrent through a sense resistor. An internal charge pump isused to enhance the gate of the N-channel FET. When anovercurrent condiTIon is detected, the gate voltage of the FET isreduced to limit the current flowing through the sense resistor. During an overcurrent condiTIon, the TIMER cap determines the amount of TIme the FET remains at a current limiting mode of operation until it is shut down. The ON (ON-CLR) pin is theenable input for the device and can be used to monitor theinput supply voltage. The ADM4210 operates with a supply voltage ranging from 2.7 V to 16.5 V.
