LTC4233IWHH#PBF

LTC4233 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. The MOSFET safe operating area is production tested and guaranteed for the stresses in Hot Swap applications. It provides separate inrush current control and an 11% accurate 11.2A 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 that amplifies the sense resistor voltage 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 applications such as high availability servers, solid state drives, industrial, network routers and switches.

• 10Mohm MOSFET including RSENSE
• Wide operating voltage range from 2.9V to 15V
• Adjustable, 11% accurate current limit, current and temperature monitor outputs
• Overtemperature protection, adjustable current limit timer before fault
• Power good and fault outputs, adjustable inrush current control
• 2.5% accurate undervoltage and overvoltage protection
• Input supply current is 1.6mA typ at (TA = 25°C, VDD = 12V)
• Turn-on delay is 48ms typical at (TA = 25°C, VDD = 12V)
• Operating temperature range from -40°C to 85°C
• Package style is 38-lead plastic QFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party