TPS2491

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS2490, TPS2491 SLVS503F – NOVEMBER 2003 – REVISED FEBRUARY 2020 TPS249x Positive High-Voltage Power-Limiting Hot Swap Controller 1 Features 1 Programmable Power Limiting and Current Limiting for Complete Safe Operating Area (SOA) Protection Wide Operating Range: 9 V to 80 V Latched Operation (TPS2490) and Automatic Retry (TPS2491) High-Side Drive for Low-RDS(on) External N- channel MOSFET Programmable Fault Timer to Protect the MOSFET and Eliminate Nuisance Shutdowns Power Good Open-Drain Output for Downstream DC/DC Coordination Enable Can Be Used as a Programmable Undervoltage Lockout or Logic Control Small, Space-Saving 10-pin VSSOP Package Calculator Tool Available (TPS2490/91 Design-in Calculator, SLVC033) 2 Applications Server Backplanes Storage Area Networks (SAN) Medical Systems Plug-In Modules Base Stations 3 Description The TPS249x are easy-to-use, positive high voltage, 10-pin Hot Swap Power Manager devices that safely drive an external N-channel MOSFET switch. The power limit and current limit (both are adjustable and independent of each other) ensure that the external MOSFET operates inside a selected safe operating area (SOA) under the harshest operating conditions. Applications include inrush current limiting, electronic circuit breaker protection, controlled load turn-on, interfacing to down-stream DC-to-DC converters, and power feed protection....