LT4200RUHG#PBF

LT4200 is a hot swap E-Fuse with guaranteed SOA. It 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 into a single package for small form-factor applications. The MOSFET safe operating area is production tested and guaranteed for the stresses in hot swap applications. It provides separate inrush current control and a ±12% accurate 57A current limit with output dependent foldback. The current limit threshold can be adjusted dynamically using the ISET pin. Additional features include a current monitor output for ground referenced current sensing and a MOSFET temperature monitor output. Thermal limit, overvoltage, undervoltage and power good monitoring are also provided. It is used in application such as high availability servers, solid state drives etc.

• Wide operating voltage range is 2.9V to 15V, input supply current is 1.6mA typ
• Guaranteed safe operating area is 7.5W√s
• 1.2Mohm MOSFET with current sense element
• Adjustable current limit threshold, temperature monitor output
• Overtemperature protection, adjustable current limit timer before fault
• Power good and fault outputs, adjustable inrush current control
• ±2.5% accurate undervoltage and overvoltage protection
• ±4% current monitor output
• Operating temperature is -40°C to 150°C
• Package style is 36-lead plastic QFN

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