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LTC4231
Micropower Hot Swap
Controller
Features Description Enables Safe Board Insertion and Removal from a
Power Supply
n 4ВµA Supply Current
n 0.3ВµA Shutdown Current
n Wide Operating Voltage Range: 2.7V to 36V
n Reverse Supply Protection to –40V
n Adjustable Analog Current Limit with Circuit Breaker
n Automatic Retry or Latchoff on Current Fault
n Overvoltage and Undervoltage Monitoring
n Controls Single or Back-to-Back N-Channel MOSFETs
n 12-Lead MSOP and 3mm Г— 3mm QFN Packages The LTCВ®4231 is a micropower Hot Swapв„ў controller that
allows safe circuit board insertion and removal from a live
power supply. An internal high side switch driver controls
the gate of an external N-channel MOSFET. Back-to-back
MOSFETs can be used for reverse supply protection down
to –40V. n Applications n n n Battery Powered Equipment
Solar Powered Systems
Portable Instruments
Automotive Battery Protection
Energy Harvesting The LTC4231 provides a debounce delay and allows the …