The TPS2490 and TPS2491 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 MSOP package and significantly reduce the number of external devices, saving precious board space. The TPS2490/91 is supported by application notes, an evaluation module, and a design tool.
● Programmable Power Limiting and Current Limiting for Complete 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 MSOP Package
● Calculator Tool Available (SLVC033)
