The LTC4210-3/LTC4210-4 is a 6-pin SOT-23 Hot Swap 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 7V. 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. The LTC4210-3 retries on overcurrent fault and the LTC4210-4 latches off on an overcurrent fault. Vin Range Retry / Latchoff LTC4210-1 2.7V to 16.5V Retry After Fault LTC4210-2 2.7V to 16.5V Latch Off After Fault LTC4210-3 2.7V to 7V Retry After Fault LTC4210-4 2.7V to 7V Latch Off After Fault Applications * Hot Board Insertion * Electronic Circuit Breaker * Industrial High Side Switch/Circuit Breaker * 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 * Controls Supply Voltages from 2.7V to 7V * Undervoltage Lockout * Adjustable Overvoltage Protection * Low Profile (1mm) SOT-23 (ThinSOT™) Package https://elecena.pl/product/15097623/hot-swap-controller-in-6-lead-sot-23-package 2018-08-12 https://elecena.pl/product/15097623/hot-swap-controller-in-6-lead-sot-23-package 2025-01-19