LTC4222
Overview
The LTC®4222 Hot Swap™ controller allows two power paths to be safely inserted and removed from a live backplane. Using external N-channel pass transistors, board supply voltages and inrush currents are ramped up at an adjustable rate.
- Allows Safe Insertion Into a Live Backplane
- 10-Bit ADC Monitors Currents and Voltages
- I2C/SMBus Interface
- Wide Operating Voltage Range: 2.9V to 29V n dI/dt Controlled Soft-Start
- High Side Drive for External N-Channel MOSFETs
- No External Gate Capacitors Required
- Input Overvoltage/Undervoltage Protection
- Optional Latchoff or Auto-Retry After Faults
- Alert Host After Faults
- Inrush Current Limit with Foldback
