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TPS2459,pdf(3 V / 12 V Hot Swap and ORing Controller)
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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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