Independently Programmable 12-V Current Limit and Fast Trip
3.3-V and 12-V FET ORing Control for MicroTCA
12-V Output Shuts Off If 3.3-V Output Shuts Off
Internal 3.3-V Current Limit and ORing
I2C Power Good and Fault Reporting
I2C™ Programmable Fault Times and Limits
FET Status Bits for 3.3-V and 12-V Channels
Load Current Monitors for 12-V and 3.3-V
32-Pin QFN Package
APPLICATIONS
ATCA Carrier Boards
MicroTCA™Power Modules
AdvancedMC™ Slots
Systems Using 12-V and 3.3-V Channels
Base Stations
Description
The TPS2459 hot-plug controller performs all necessary power interface functions for an AdvancedMC™ (Advanced Mezzanine Card). A fully integrated 3.3-V channel provides inrush control, over-current protection, and FET ORing. A 12-V channel provides the same functions using external FETs and sense resistors. The 3.3-V current limit is factory set to AdvancedMC™ compliant levels while the 12-V current limit is programmed using external sense resistors. The accurate current sense comparators of the TPS2459 satisfy the narrow ATCA™ AdvancedMC™ current limit requirements.
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Inventory
Reported Distributor Inventory as of 9:55 AM GMT, 09 Feb 2010
** 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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