Datasheet Linear Technology LTC4219IDHC-12#PBF

LTC4219
5A Integrated
Hot Swap Controller
Features Description Small Footprint
nn 33mО© MOSFET with R
SENSE
nn Available in Preset 12V and 5V Versions
nn Adjustable, 10% Accurate Current Limit
nn Current and Temperature Monitor Outputs
nn Overtemperature Protection
nn Adjustable Current Limit Timer Before Fault
nn Power Good and Fault Outputs
nn Adjustable Inrush Current Control
nn Available in 16-Lead 5mm Г— 3mm DFN Package The LTCВ®4219 is an integrated solution for Hot Swap
applications that allows a board to be safely inserted and
removed from a live backplane. The part integrates a Hot
Swap controller, power MOSFET and current sense resistor in a single package for small form factor applications. nn The LTC4219 provides separate inrush current control
and a 10% accurate 5.6A current limit with foldback current limiting. The current limit threshold can be adjusted
dynamically using an external pin. Additional features
include a current monitor output that amplifies the sense
resistor voltage for ground referenced current sensing
and a MOSFET temperature monitor output. Thermal limit
and power good monitoring are also provided. The power …