LT4256-3

U U FEATURES ■ Allows Safe Board Insertion and Removal from a Live Backplane ■ Controls Supply Voltage from 10.8V to 80V ■ Foldback Current Limiting ■ Open Circuit and Overcurrent Fault Detect ■ Drives an External N-Channel MOSFET ■ Automatic Retry or Latched Off Operation After Overcurrent Fault ■ Programmable Supply Voltage Power-Up Rate ■ Open MOSFET Detection ■ 1% Over and Undervoltage Detection Accuracy ■ Available in a 16-Lead SSOP Package U APPLICATIO S ■ Hot Board Insertion ■ Electronic Circuit Breaker/Power Bussing ■ Industrial High Side Switch/Circuit Breaker ■ 24V/48V Industrial/Alarm Systems ■ Ideally Suited for 12V, 24V and 48V Distributed Power Systems ■ 48V Telecom Systems LT4256-3 Positive High Voltage Hot Swap Controller with Open-Circuit Detect DESCRIPTIO The LT®4256-3 is a high voltage Hot SwapTM controller that allows a board to be safely inserted and removed from a live backplane. An internal driver controls the high side N-channe...