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
APPLICATIONS
Server Backplanes
Storage Area Networks (SAN)
Medical Systems
Plug-in Modules
Base Stations
Description
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.
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
Inventory
Reported Distributor Inventory as of 10:15 AM GMT, 22 Nov 2009
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
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