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LM25056 Datasheet System Power Measurement-ic

Manufacturer: Texas Instruments

Overview: LM25056 www.ti.com SNVS784A – JANUARY 2012 – REVISED APRIL 2013 LM25056 System Power Measurement IC with PMBus Check for Samples:.

General Description

The LM25056 combines high performance analog and digital technology with a PMBus™ compliant SMBus™/I2C interface to accurately measure the operating conditions of electrical systems including computing and storage blades connected to a backplane power bus.

The LM25056 continuously supplies real-time power, voltage, current, and temperature data to the system management host via the SMBus interface.

The LM25056 monitoring block captures both realtime and average values of subsystem operating parameters (VIN, IIN, PIN, VAUX) as well as peak power.

Key Features

  • 1.
  • 234 Input Voltage Range: 3V to 17V.
  • I2C/SMBus Interface with PMBus Compliant Command Structure.
  • Remote Temperature Sensing with Programmable Warning and Shutdown Thresholds.
  • Real Time Monitoring of VIN, IIN, PIN, VAUX with 12-bit Resolution and 1 kHz Sampling Rate.
  • True Input Power Measurement Using Simultaneous Sampling of VIN and IIN Accurately Averages Dynamic Power Readings.
  • Averaging of VIN, IIN, PIN, and VAUX Over Programmable Interva.

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