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LTC4215-2 Datasheet Hot Swap Controller

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC4215/LTC4215-2 Hot Swap Controller with I2C Compatible Monitoring.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LTC®4215/LTC4215-2 Hot Swap™ controllers allow 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 allow for monitoring of load current, voltage and fault status.

Key Features

  • n Allows Safe Insertion into Live Backplane n 8-Bit ADC Monitors Current and Voltage n I2C/SMBus Interface n Wide Operating Voltage Range: 2.9V to 15V n 20μs (LTC4215) or 420μs (LTC4215-2) Circuit Breaker Timeout n dI/dt Controlled Soft-Start n High Side Drive for External N-Channel MOSFET n No External Gate Capacitor Required n Input Overvoltage/Undervoltage Protection n Optional Latchoff or Auto-Retry After Faults n Alerts Host After Faults n Inrush Current Limit with Foldback n Available in 2.

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