LM5064PMH/NOPB

LM5064PMH/NOPB DESCRIPTION

The LM5064 combines a high performance hot swapcontroller with a PMBusTM compliant SMBus/I2Cinterface to accurately measure, protect and controlthe electrical operating conditions ofsystemsconnected to a backplane power bus. The LM5064voltage,continuouslycurrent,temperature and fault data to the systemmanagement host via the SMBus interface.real-time power,suppliesThe LM5064 control block includes a unique hotswap architecture that provides current and powerlimiting to protect sensitive circuitry during insertion ofboards into a live system backplane, or any other"hot" power source. A fast acting circuit breakerprevents damage in the event of a short circuit on theoutput. The input under-voltage and over-voltagelevels and hysteresis are configurable, as well as theinsertion delay time and fault detection time. Atemperature monitoring block on the LM5064interfaces with a low-cost external diode formonitoring the temperature of the external MOSFETor other thermally sensitive components. The PGDoutput provides a fast indicator when the input and/oroutput voltages are outside their programmed ranges.The LM5064 monitoring circuit computes both thereal-time and average values of subsystem operatingparameters (VIN, IIN, PIN, VOUT) as well as the peakpower. Accurate power averaging is accomplished bythe input voltage andaveraging the product ofcurrent. A black box (Telemetry/Fault Snapshot)function captures and stores telemetry data anddevice status in the event of a warning or a fault.1Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.2All trademarks are the property of their respective owners.PRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms ofthe TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.Copyright © 2011–2013, Texas Instruments Incorporated

LM5064PMH/NOPB APPLICATIONS

• Base Station Power Distribution SystemsIntelligent Solid State Circuit Breaker •-24V/-48V Industrial Systems •