LM95234

ACTIVO

Sensor de temperatura local y remoto cuádruple de ±2 °C con tecnología TruTherm e interfaz SMBus

Detalles del producto

Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -40 to 140 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features ALERT, One-shot conversion Supply current (max) (µA) 800 Temp resolution (max) (bps) 11 Remote channels (#) 4 Addresses 3 Rating Catalog
Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -40 to 140 Supply voltage (min) (V) 2.7 Interface type I2C, SMBus Supply voltage (max) (V) 5.5 Features ALERT, One-shot conversion Supply current (max) (µA) 800 Temp resolution (max) (bps) 11 Remote channels (#) 4 Addresses 3 Rating Catalog
WSON (NHL) 14 16 mm² 4 x 4
  • Accurately Senses Die Temperature of 4 Remote ICs or Diode Junctions and Local Temperature
  • TruTherm BJT Beta Compensation Technology Accurately Senses Sub-micron Process Thermal Diodes
  • Programmable Digital Filters and Analog Front End Filter
  • 0.125°C LSb Temperature Resolution
  • 0.03125°C LSb Remote Temperature Resolution with Digital Filter Enabled
  • +127.875°C/–128°C and 0°C/255°C Remote Ranges
  • Remote Diode Fault Detection, Model Selection and Offset Correction
  • Mask and Status Register Support
  • 3 Programmable TCRIT Outputs with Programmable Shared Hysteresis and Fault-Queue
  • Programmable Conversion Rate and Shutdown Mode One-shot Conversion Control
  • SMBus 2.0 Compatible Interface, Supports TIMEOUT
  • Three-level Address Pin
  • 14-pin WSON Package

Key Specifications

  • Local Temperature Accuracy ±2.0°C (max)
  • Remote Diode Temperature Accuracy ±0.875°C (max)
  • Supply Voltage 3.0V to 3.6V
  • Average Supply Current (1Hz conversion rate)

TruTherm is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

  • Accurately Senses Die Temperature of 4 Remote ICs or Diode Junctions and Local Temperature
  • TruTherm BJT Beta Compensation Technology Accurately Senses Sub-micron Process Thermal Diodes
  • Programmable Digital Filters and Analog Front End Filter
  • 0.125°C LSb Temperature Resolution
  • 0.03125°C LSb Remote Temperature Resolution with Digital Filter Enabled
  • +127.875°C/–128°C and 0°C/255°C Remote Ranges
  • Remote Diode Fault Detection, Model Selection and Offset Correction
  • Mask and Status Register Support
  • 3 Programmable TCRIT Outputs with Programmable Shared Hysteresis and Fault-Queue
  • Programmable Conversion Rate and Shutdown Mode One-shot Conversion Control
  • SMBus 2.0 Compatible Interface, Supports TIMEOUT
  • Three-level Address Pin
  • 14-pin WSON Package

Key Specifications

  • Local Temperature Accuracy ±2.0°C (max)
  • Remote Diode Temperature Accuracy ±0.875°C (max)
  • Supply Voltage 3.0V to 3.6V
  • Average Supply Current (1Hz conversion rate)

TruTherm is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

LM95234 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) interface that can very accurately monitor the temperature of four remote diodes as well as its own temperature that includes patent pending remote diode TruTherm BJT beta compensation beta compensation technology. The four remote diodes can be external devices such as microprocessors, graphics processors or diode-connected 2N3904s. The LM95234's TruTherm BJT beta compensation technology allows sensing of 90 nm or 65 nm process thermal diodes accurately.

The LM95234 reports temperature in two different formats for +127.875°C/–128°C range and 0°C/255°C range. The LM95234 TCRIT1, TCRIT2 and TCRIT3 outputs are triggered when any unmasked channel exceeds its corresponding programmable limit and can be used to shutdown the system, to turn on the system fans or as a microcontroller interrupt function. The current status of the TCRIT1, TCRIT2 and TCRIT3 pins can be read back from the status registers. Mask registers are available for further control of the TCRIT outputs.

Two LM95234 remote temperature channels have programmable digital filters while the other two remote channels utilize a fault-queue to minimize unwanted TCRIT events when temperature spikes are encountered.

For optimum flexibility and accuracy, each LM95234 channel includes registers for sub-micron process or 2N3904 diode model selection as well as offset correction. A three-level address pin allows connection of up to 3 LM95234s to the same SMBus master. The LM95234 includes power saving functions such as: programmable conversion rate, shutdown mode, and disabling of unused channels.

LM95234 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) interface that can very accurately monitor the temperature of four remote diodes as well as its own temperature that includes patent pending remote diode TruTherm BJT beta compensation beta compensation technology. The four remote diodes can be external devices such as microprocessors, graphics processors or diode-connected 2N3904s. The LM95234's TruTherm BJT beta compensation technology allows sensing of 90 nm or 65 nm process thermal diodes accurately.

The LM95234 reports temperature in two different formats for +127.875°C/–128°C range and 0°C/255°C range. The LM95234 TCRIT1, TCRIT2 and TCRIT3 outputs are triggered when any unmasked channel exceeds its corresponding programmable limit and can be used to shutdown the system, to turn on the system fans or as a microcontroller interrupt function. The current status of the TCRIT1, TCRIT2 and TCRIT3 pins can be read back from the status registers. Mask registers are available for further control of the TCRIT outputs.

Two LM95234 remote temperature channels have programmable digital filters while the other two remote channels utilize a fault-queue to minimize unwanted TCRIT events when temperature spikes are encountered.

For optimum flexibility and accuracy, each LM95234 channel includes registers for sub-micron process or 2N3904 diode model selection as well as offset correction. A three-level address pin allows connection of up to 3 LM95234s to the same SMBus master. The LM95234 includes power saving functions such as: programmable conversion rate, shutdown mode, and disabling of unused channels.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM95234 Quad Remote Diode & Local Temp Sensor w/SMBus Interface &TruTherm Tech datasheet (Rev. D) 22 mar 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Controlador o biblioteca

LM95234SW-LINUX — Controlador Linux para LM95234

The Linux driver supports the LM95234 series of Remote and Local Temp Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • (...)
Soporte de software

SENSOREVAL Eval Board Software For Hardware Monitors And Digital Temperature Sensors

SensorEval
SensorEval software supports the latest TI temperature sensor and hardware monitor evaluation boards via USB interface. It also allows access to sensors mounted directly on motherboards that support Intel chip sets.

  • Download SensorEval Software and Manual
  • Windows XP support is offered for (...)
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Sensores de temperatura digitales
LM63 1 sensor de temperatura local y remoto con control de ventilador LM64 1 sensor de temperatura local y remoto con control de ventilador y 5 GPIO LM71 Sensor de temperatura de ±1.5 °C con interfaz SPI LM71-Q1 Sensor de temperatura de ±1.5 °C con interfaz SPI de calidad automotriz LM73 Sensor de temperatura de ±1 °C con interfaz I2C/SMBus LM75A Sensor de temperatura estándar de la industria de 2 °C con interfaz I2C/SMBus LM86 Sensor de temperatura local y remota de ±0.75 °C con interfaz SMBus LM89 Sensor de temperatura local y remoto de ±0.75 °C con interfaz SMBus y 2 direcciones para compartir e LM90 Sensor de temperatura local y remoto con interfaz SMBus LM93 Un sensor de temperatura local, 2 remotos con monitor de hardware y 16 monitores de tensión de fuent LM95010 Sensor de temperatura de ±2 °C con interfaz SensorPath LM95071 Sensor de temperatura de ±1 °C con interfaz SPI LM95172-Q1 Sensor de temperatura de ±1 °C de calidad automotriz con capacidad para 200 °C e interfaz SPI LM95214 Sensor de temperatura local y remoto cuádruple de ±2 °C con interfaz SMBus LM95221 Sensor de temperatura local y remoto doble de 3 °C con compensación beta e interfaz SMBus, I2C LM95231 Sensor de temperatura local y remoto doble con tecnología TruTherm e interfaz SMBus LM95233 Sensor de temperatura local y remoto doble de ±2 °C con tecnología TruTherm e interfaz SMBus LM95234 Sensor de temperatura local y remoto cuádruple de ±2 °C con tecnología TruTherm e interfaz SMBus LM95235 Sensor de temperatura local y remoto de ±0.75 °C con SMBus y compensación beta para diodo de 65/9 LM95235-Q1 Sensor de temperatura local y remoto de ±2 °C con tecnología TruTherm y SMBus de calidad automotriz LM95241 Sensor de temperatura local y remoto doble de ±1.25 °C con compensación beta e interfaz SMBus, I2 LM95245 Sensor de temperatura local y remoto de ±0.75 °C con SMBus y compensación beta para diodo de 45 n LM96000 Monitor de hardware con control de ventilador y 6 monitores de tensión de fuente de alimentación LM96080 Un sensor de temperatura local con velocidad del ventilador y monitor de tensión de alimentación LM96163 Un sensor de temperatura local y remoto con compensación beta y control de ventilador LM99 Sensor de temperatura local y remoto con tecnología TruTherm e interfaz SMBus
ADC de precisión
ADC128D818 ADC Delta-Sigma de 12 bits, 82 SPS, 8 canales con sensor de temperatura, referencia de tensión INT/E
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (NHL) 14 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

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