Chapter 255

Low voltage Hot Swap controller ignores backplane noise and surges

Mitchell Lee


The LTC4211 low voltage Hot Swap controller, which ignores backplane noise and surges, is described.


Hot Swap controller


First generation single supply Hot Swap controllers, such as the LTC1422, combine the features of various discrete inrush limiting circuits into a single IC, including an electronic circuit breaker, adjustable power-up rate, reset output, high-side MOSFET gate drive, undervoltage lockout and a wide operating voltage range. The LTC4211 advances these features by adding a dual level, dual response time electronic circuit breaker, adjustable soft-start with inrush current limiting, fault detection, faster ...

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