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LM5066 Datasheet(PDF) 1 Page - Texas Instruments |
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LM5066 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 63 page  LM5066 www.ti.com SNVS655G – JUNE 2011 – REVISED FEBRUARY 2013 LM5066 High Voltage System Power Management and Protection IC with PMBus Check for Samples: LM5066 1 FEATURES APPLICATIONS 2 • Input Voltage Range: 10V to 80V • Server Backplane Systems • Programmable 26 mV or 50 mV Current Limit • Base Station Power Distribution Systems Threshold with Power Limiting (MOSFET • Solid State Circuit Breaker Power Dissipation Limiting) • Real Time Monitoring of VIN, VOUT, IIN, PIN, VAUX DESCRIPTION with 12-Bit Resolution and 1 kHz Sampling The LM5066 combines a high performance hot swap Rate controller with a PMBus™ compliant SMBus/I2C interface to accurately measure, protect and control • Configurable Circuit Breaker Protection for the electrical operating conditions of systems Hard Shorts connected to a backplane power bus. The LM5066 • Configurable Under-Voltage and Over-Voltage continuously supplies real-time power, voltage, Protection current, temperature and fault data to the system management host via the SMBus interface. • Remote Temperature Sensing with Programmable Warning and Shutdown The LM5066 control block includes a unique hot Thresholds swap architecture that provides current and power limiting to protect sensitive circuitry during insertion of • Detection and Notification of Damaged boards into a live system backplane, or any other MOSFET Condition "hot" power source. A fast acting circuit breaker • Power Measurement Accuracy: ±4.5% Over prevents damage in the event of a short circuit on the Temperature output. The input under-voltage and over-voltage • True Input Power Averages Dynamic Power levels and hysteresis are configurable, as well as the Readings insertion delay time and fault detection time. A temperature monitoring block on the LM5066 • Averaging of VIN, IIN, PIN, and VOUT Over interfaces with a low-cost external diode for Programmable Interval Ranging from 0.001 to monitoring the temperature of the external MOSFET 4 Seconds or other thermally sensitive components. The PGD • Programmable WARN and FAULT Thresholds output provides a fast indicator when the input and/or with SMBA Notification output voltages are outside their programmed ranges. LM5066 current measurement accuracy is ±4.5% • Black Box Capture of Telemetry over the operating temperature range. Measurements and Device Status Triggered by WARN or FAULT Condition The LM5066 monitoring block computes both the real-time and average values of subsystem operating • I2C/SMBus Interface and PMBus Compliant parameters (VIN, IIN, PIN, VOUT) as well as the peak Command Structure power. Accurate power averaging is accomplished by • Full Featured Application Development averaging the product of the input voltage and Software current. A black box (Telemetry/Fault Snapshot) • HTSSOP-28 Package function captures and stores telemetry data and device status in the event of a warning or a fault. 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 © 2011–2013, 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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