LTC4219IDHC-12#PBF

LTC4219 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. It 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. It is widely used in applications such as RAID systems, server I/O cards, industrial etc.

• Small footprint
• MOSFET + sense resistor on resistance is 33Mohm typ at (TA = 25°C, VDD = 12V)
• Current and temperature monitor outputs
• Overtemperature protection
• Adjustable current limit timer before fault
• Power good and fault outputs
• Adjustable inrush current control
• Operating ambient temperature is -40°C to 85°C
• Package style is 16-lead plastic DFN

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