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LT4220 - Dual Supply Hot Swap Controller

Key Features

  • s s s s s.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LT4220 Dual Supply Hot Swap Controller FEATURES s s s s s DESCRIPTIO s s s s Hot SwapTM Controller for Positive and Negative Supplies Supply Tracking Mode ±2.7V to ±16.5V Operation Analog Current Limit with Foldback Allows Safe Board Insertion and Removal from a Live Backplane Open-Collector Power Good Comparators Automatic Retry or Latchoff After a Current Fault Dual Undervoltage Lockout Comparator Inputs Current Fault Indication The LT®4220 16-pin dual voltage Hot Swap controller allows a board to be safely inserted and removed from a live backplane. The device operates with any combination of 2.7V to 16.5V and –2.7V to –16.5V supplies. Using two external N-channel pass transistors, the board supply voltages can be ramped up at an adjustable rate.