TPS2420

TPS2420 www.ti.com SLUS903F – JANUARY 2009 – REVISED JANUARY 2014 5-A, 20-V Integrated FET Hot-Swap Controller Check for Samples: TPS2420 FEATURES 1 2 Integrated 30-mΩ Pass MOSFET Up to 20-V Bus Operation Programmable Fault Current Programmable Hard Current-Limit Programmable Fault Timer Internal MOSFET Power Limiting Foldback Latching and Auto-Retry Operation Analog Current Monitor Output Powergood Output Fault Output Indicator 4 mm × 4 mm QFN –40°C to 125°C Junction Temperature Range UL2367 Recognized - File Number E169910 APPLICATIONS RAID Arrays Telecommunications Plug-In Circuit Boards Disk Drives SSDs PCIE Fan Control DESCRIPTION The TPS2420 device provides highly integrated load protection for applications up to 20-V. The maximum UV turn-on threshold of 2.9 V makes the TPS2420 well suited to standard bus voltages as low as 3.3 V. The TPS2420 device protects loads, minimizes inrush current, and safely shuts down in the event of a fault. The programmable fault current threshold starts the fault timer while allowing the current to pass to the load uninhibited. The programmable current limit threshold sets the maximum current allowed into the load, for both inrush and severe load faults. Both events use the programmable timer which inhibits all current to the load when it expires. The dual protection thresholds are useful in applications such as disk drives. The start-up and seek currents are typically higher than the nominal curr...