DESCRIPTION
The LTC®1642A is a 16-pin Hot SwapTM controller that allows a board to be safely inserted and removed from a live backplane. Using an external N-Channel pass transistor, the board supply voltage can be ramped up at an adjustable rate. A high side switch driver controls the N-Channel gate for supply voltages ranging from 2.97V to 16.5V.

FEATURES
■ Adjustable Undervoltage and Overvoltage Protection
■ Foldback Current Limit
■ Adjustable Current Limit Time-Out
■ VCC: 2.97V to 16.5V Normal Operation, Protected Against Surges to 33V
■ Single Channel NFET Driver
■ Latch Off or Automatic Retry on Current Fault
■ Driver for SCR Crowbar on Overvoltage
■ Adjustable Reset Timer
■ Reference Output with Uncommitted Comparator
■ 16-Pin SSOP Package

APPLICATIONS
■ Hot Board Insertion
■ Electronic Circuit Breaker
■ InfiniBandTM Systems