LTC4215-1/LTC4215-3
Hot Swap Controller with
I2C Compatible Monitoring
FEATURES DESCRIPTION n The LTCВ®4215-1/LTC4215-3 Hot Swapв„ў 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. n Allows Safe Insertion into Live Backplane
8-Bit ADC Monitors Current and Voltage
I2C/SMBus Interface
Wide Operating Voltage Range: 2.9V to 15V
dI/dt Controlled Soft-Start
Circuit Breaker Timeout: 20Ојs (LTC4215-1) or
420Ојs (LTC4215-3)
Three General Purpose Outputs
High Side Drive for External N-channel MOSFET
No External Gate Capacitor Required
Input Overvoltage/Undervoltage Protection
Optional Latchoff or Auto-Retry After Faults
Alerts Host After Faults
Inrush Current Limit with Foldback
Available in 24-Pin (4mm Г— 5mm) QFN The device features adjustable foldback current limit and …