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Monitores de potencia digitales

LM25056A

ACTIVO

Monitor de corriente/tensión/potencia/temperatura PMBus de 17 V

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LM25056A

ACTIVO
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Detalles del producto

Common-mode voltage (max) (V) 17 Common-mode voltage (min) (V) 3 Digital interface PMBus Input offset (±) (max) (µV) 250 Voltage gain (V/V) 0.5, 1 Iq (max) (mA) 2.8 Gain error (%) 1.5 Features Digital Temp Monitor, PMBUS, Supports Telemetry Data Storage Power measurement accuracy (%) 1.5 Rating Catalog Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 17 Common-mode voltage (min) (V) 3 Digital interface PMBus Input offset (±) (max) (µV) 250 Voltage gain (V/V) 0.5, 1 Iq (max) (mA) 2.8 Gain error (%) 1.5 Features Digital Temp Monitor, PMBUS, Supports Telemetry Data Storage Power measurement accuracy (%) 1.5 Rating Catalog Operating temperature range (°C) -40 to 125
WQFN (NHZ) 24 20 mm² (5 mm × 4 mm)
  • 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
  • Current Measurement Error: ±0.5%: +10°C to +85°C
  • Voltage Measurement Error: ±1.0%: +10°C to+85°C
  • Power Measurement Error: ±1.5%: +10°C to +85°C
  • 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 Interval Ranging from 0.001 to 4 Seconds
  • User Programmable WARN and FAULT Thresholds with SMBA Notification
  • Black Box Capture of Telemetry Measurements and Device Status Triggered by WARN and FAULT Conditions
  • Full Featured Application Development Software
  • WQFN-24 Package

All trademarks are the property of their respective owners.

  • 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
  • Current Measurement Error: ±0.5%: +10°C to +85°C
  • Voltage Measurement Error: ±1.0%: +10°C to+85°C
  • Power Measurement Error: ±1.5%: +10°C to +85°C
  • 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 Interval Ranging from 0.001 to 4 Seconds
  • User Programmable WARN and FAULT Thresholds with SMBA Notification
  • Black Box Capture of Telemetry Measurements and Device Status Triggered by WARN and FAULT Conditions
  • Full Featured Application Development Software
  • WQFN-24 Package

All trademarks are the property of their respective owners.

The LM25056A 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 LM25056A continuously supplies real-time power, voltage, current, and temperature data to the system management host via the SMBus interface.

The LM25056A monitoring block captures both real-time and average values of subsystem operating parameters (VIN, IIN, PIN, VAUX) as well as peak power. Accurate power measurement is accomplished by measuring the product of the input voltage and current through a shunt resistor. LM25056A current measurement has a ±0.5% accuracy over the temperature range of +10°C to +85°C with operation from -40°C to +125°C. A black box (Telemetry/Fault Snapshot) function captures and stores telemetry data and device status in the event of a warning or a fault.

The LM25056A 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 LM25056A continuously supplies real-time power, voltage, current, and temperature data to the system management host via the SMBus interface.

The LM25056A monitoring block captures both real-time and average values of subsystem operating parameters (VIN, IIN, PIN, VAUX) as well as peak power. Accurate power measurement is accomplished by measuring the product of the input voltage and current through a shunt resistor. LM25056A current measurement has a ±0.5% accuracy over the temperature range of +10°C to +85°C with operation from -40°C to +125°C. A black box (Telemetry/Fault Snapshot) function captures and stores telemetry data and device status in the event of a warning or a fault.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos System Power Measurement IC with PMBus. datasheet (Rev. A) 5/04/2013
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Guía de selección Hot Swap Selection Tool 28/07/2015
Guía del usuario AN-2144 LM25056 Evaluation Board 16/01/2012

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