LTC4281 Datasheet (Analog Devices)

LTC4281, Hot Swap Controller

The LTC®4281 hot swap controller allows a board to be safely inserted and removed from a live backplane.

Using an external N-channel pass transistor, board supply voltage and inrush current are ramped up at an adjustable rate.

An I2C interface and onboard ADC allows for monitoring of board current,

LTC4281 Features

* n Allows Safe Board Insertion Into Live Backplane n 12-/16-Bit ADC with ±0.9% Total Unadjusted Error n Monitors Current, Voltage, Power and Energy n Internal EEPROM for Nonvolatile Configuration n Wide Operating Voltage Range: 2.9V to 33V n I2C/SMBus Digital Interface (Coexists with PMBus Devices) n