TPS2491 Datasheet | Texas Instruments

Features - 1 Programmable Power Limiting and Current Limiting for plete 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. These devices are available in a small, space-saving 10-pin VSSOP package and significantly reduce the number of external devices, saving precious board space. The TPS249x is supported by application notes, an evaluation module, and a design tool. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS249x VSSOP (10) 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Z1 Typical Application RSNS Q1 D1 R5 VOUT...