Features: · Allows Safe Board Insertion and Removal from a Live Backplane· Adjustable Analog Current Limit with Circuit Breaker· Fast Response Limits Peak Fault Current· Automatic Retry or Latch Off On Current Fault·Adjustable Supply Voltage Power-Up Rate·High Side Drive for External MOSFET Switch...
LTC4210-2: Features: · Allows Safe Board Insertion and Removal from a Live Backplane· Adjustable Analog Current Limit with Circuit Breaker· Fast Response Limits Peak Fault Current· Automatic Retry or Latch Off...
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The LTC®4210 is a 6-pin SOT-23 Hot SwapTM controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the GATE of an external N-channel MOSFET for a supply voltage ranging from 2.7V to 16.5V. The LTC4210 provides the initial timing cycle and allows the GATE to be ramped up at an adjustable rate.
The LTC4210 features a fast current limit loop providing active current limiting together with a circuit breaker timer. The signal at the ON pin turns the part on and off and is also used for the reset function.
This part is available in two options: the LTC4210-1 for automatic retry on overcurrent fault and the LTC4210-2 for latch off on an overcurrent fault.