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LM25066IA Folha de dados(PDF) 1 Page - Texas Instruments |
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LM25066IA Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 59 page LM25066I, LM25066IA www.ti.com SNVS824C – JUNE 2012 – REVISED MARCH 2013 Intel Node Manager Compliant System Power Management and Protection IC with PMBus Check for Samples: LM25066I, LM25066IA 1 FEATURES DESCRIPTION While the LM25066I/A is functionally similar to the 2 • Fully Node Manager 2.0 and 2.5 Compliant with LM25066/A, the LM25066I/A is fully compliant to Intel I2C/SMBus interface and PMBus™ compliant Node Manager 2.0, 2.5 and adds the READ_EIN command structure energy accumulator feature. The LM25066I/A • Input voltage range: 2.9V to 17V combines a high-performance hot-swap controller with a PMBus 1.2™ compliant SMBus/I2C interface to • Programmable 25mV or 46mV current limit accurately measure, control and protect the electrical threshold operating conditions of critical systems. The • Read_EIN accurately measures true input LM25066I/A continuously supplies real-time power, power via simultaneous sampling voltage, current, temperature, and fault data to the • Configurable circuit breaker protection for system management host via the SMBus interface. hard shorts The LM25066I/A control block includes a unique hot- • Configurable under- and over-voltage lockouts swap architecture that provides current and power with hysteresis limiting to protect sensitive circuitry even during the most stressful conditions. A fast-acting circuit breaker • Real time monitoring of VIN, VOUT, IIN, PIN, VAUX prevents damage in the event of a short circuit on the with 12-bit resolution and 1 kHz sampling rate output. The input under-voltage, over-voltage • Current measurement accuracy: ±1% hysteresis, insertion delay time and fault detection (LM25066IA) and Power measurement time are all configurable. A temperature monitoring accuracy: ±2.0% (LM25066IA) over temperature block on the LM25066I/A interfaces with a low-cost • Averaging of VIN, IIN, PIN, and VOUT over external diode for continuous temperature assessment of the external MOSFET or other thermal programmable interval ranging from 0.001 to 4 sensitive components. The POWER GOOD output seconds provides a fast alert when the input and/or output • Programmable WARN and FAULT thresholds voltages are outside their programmed range. with SMBA notification Accurate power readings are accomplished by using • Blackbox capture of telemetry measurements the READ_EIN command. A black box and device status triggered by WARN or (Telemetry/Fault Snapshot) function captures and stores telemetry data and device status in the event FAULT condition of a warning or a fault. • 24-lead WQFN package APPLICATIONS • Server backplane systems • Basestation power distribution systems • Solid state circuit breaker (eFuse) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2012–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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