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Sensores
Sensores de temperatura
Controladores térmicos de ventilador

LM93

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Un sensor de temperatura local, 2 remotos con monitor de hardware y 16 monitores de tensión de fuent

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LM93

ACTIVO
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Detalles del producto

Local sensor accuracy (max) 3 Operating temperature range (°C) 0 to 85 Interface type I2C, SMBus Features PWM output, Tachometer Supply current (max) (µA) 900 Temp resolution (max) (bps) 8 Remote channels (#) 2 Addresses 3 Rating Catalog
Local sensor accuracy (max) 3 Operating temperature range (°C) 0 to 85 Interface type I2C, SMBus Features PWM output, Tachometer Supply current (max) (µA) 900 Temp resolution (max) (bps) 8 Remote channels (#) 2 Addresses 3 Rating Catalog
TSSOP (DGG) 56 113.4 mm² (14 mm × 8.1 mm)
  • 8-bit ΣΔ ADC
  • Monitors 16 Power Supplies
  • Monitors 2 Remote Thermal Diodes
  • Internal Ambient Temperature Sensing
  • Programmable Autonomous Fan Control Based on Temperature Readings with Fan Boost Support
  • Fan Control Based on 13-step Lookup Table
  • Temperature Reading Digital Filter
  • 1.0°C Digital Temperature Sensor Resolution
  • 0.5°C Temperature Resolution for Fan Control
  • 2 PWM Fan Speed Control Outputs
  • 4 Fan Tachometer Inputs
  • Dual Processor Thermal Throttling (PROCHOT) Monitoring
  • Dual Dynamic VID Monitoring (6 VIDs per Processor)
  • 8 General Purpose I/Os:
    • 4 Can be Configured as Fan Tachometer Inputs
    • 2 Can be Configured to Connect to THERMTRIP from a Processor
    • 2 are Standard GPIOs that Could be Used to Monitor IERR Signal
  • 2 General Purpose Inputs that Can be Used to Monitor SCSI Termination Signals
  • Limit Register Comparisons of All Monitored Values
  • 2-wire, SMBus 2.0 Compliant, Serial Digital Interface
    • Supports Byte/block Read and Write
    • Configurable Slave Address (Tri-level Pin Selects 1 of 3 Possible Addresses)
  • 2.5V Reference Voltage Output
  • 56-pin TSSOP Package
  • XOR-tree Test Mode
  • Key Specifications
    • Voltage Measurement Accuracy ±2% FS (max)
    • Resolution 8-bits, 1°C
    • Temperature Sensor Accuracy ±3°C (max)
    • Temperature Range:LM93 Operational 0°C to +85°CRemote Temp Accuracy 0°C to +125°C
    • Power Supply Voltage +3.0V to +3.6V
    • Power Supply Current 0.9 mA

All trademarks are the property of their respective owners.

  • 8-bit ΣΔ ADC
  • Monitors 16 Power Supplies
  • Monitors 2 Remote Thermal Diodes
  • Internal Ambient Temperature Sensing
  • Programmable Autonomous Fan Control Based on Temperature Readings with Fan Boost Support
  • Fan Control Based on 13-step Lookup Table
  • Temperature Reading Digital Filter
  • 1.0°C Digital Temperature Sensor Resolution
  • 0.5°C Temperature Resolution for Fan Control
  • 2 PWM Fan Speed Control Outputs
  • 4 Fan Tachometer Inputs
  • Dual Processor Thermal Throttling (PROCHOT) Monitoring
  • Dual Dynamic VID Monitoring (6 VIDs per Processor)
  • 8 General Purpose I/Os:
    • 4 Can be Configured as Fan Tachometer Inputs
    • 2 Can be Configured to Connect to THERMTRIP from a Processor
    • 2 are Standard GPIOs that Could be Used to Monitor IERR Signal
  • 2 General Purpose Inputs that Can be Used to Monitor SCSI Termination Signals
  • Limit Register Comparisons of All Monitored Values
  • 2-wire, SMBus 2.0 Compliant, Serial Digital Interface
    • Supports Byte/block Read and Write
    • Configurable Slave Address (Tri-level Pin Selects 1 of 3 Possible Addresses)
  • 2.5V Reference Voltage Output
  • 56-pin TSSOP Package
  • XOR-tree Test Mode
  • Key Specifications
    • Voltage Measurement Accuracy ±2% FS (max)
    • Resolution 8-bits, 1°C
    • Temperature Sensor Accuracy ±3°C (max)
    • Temperature Range:LM93 Operational 0°C to +85°CRemote Temp Accuracy 0°C to +125°C
    • Power Supply Voltage +3.0V to +3.6V
    • Power Supply Current 0.9 mA

All trademarks are the property of their respective owners.

The LM93, hardware monitor, has a two wire digital interface compatible with SMBus 2.0. Using an 8-bit ΣΔ ADC, the LM93 measures the temperature of two remote diode connected transistors as well as its own die and 16 power supply voltages.

To set fan speed, the LM93 has two PWM outputs that are each controlled by up to four temperature zones. The fan-control algorithm is lookup table based. The LM93 includes a digital filter that can be invoked to smooth temperature readings for better control of fan speed. The LM93 has four tachometer inputs to measure fan speed. Limit and status registers for all measured values are included.

The LM93 builds upon the functionality of previous motherboard management ASICs and uses some of the LM85's features (i.e. smart tachometer mode). It also adds measurement and control support for dynamic Vccp monitoring and PROCHOT. It is designed to monitor a dual processor Xeon class motherboard with a minimum of external components.

The LM93, hardware monitor, has a two wire digital interface compatible with SMBus 2.0. Using an 8-bit ΣΔ ADC, the LM93 measures the temperature of two remote diode connected transistors as well as its own die and 16 power supply voltages.

To set fan speed, the LM93 has two PWM outputs that are each controlled by up to four temperature zones. The fan-control algorithm is lookup table based. The LM93 includes a digital filter that can be invoked to smooth temperature readings for better control of fan speed. The LM93 has four tachometer inputs to measure fan speed. Limit and status registers for all measured values are included.

The LM93 builds upon the functionality of previous motherboard management ASICs and uses some of the LM85's features (i.e. smart tachometer mode). It also adds measurement and control support for dynamic Vccp monitoring and PROCHOT. It is designed to monitor a dual processor Xeon class motherboard with a minimum of external components.

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM93 Hardware Monitor with Integrated Fan Control for Server Management datasheet (Rev. E) 27/03/2013
Product overview Fan Controller Overview PDF | HTML 4/08/2026

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

LM93SW-LINUX — Controlador Linux para LM93

The Linux driver supports the LM93 series of Hardware Monitors. 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:
  • lm93
  • lm94
Linux (...)
Productos y hardware compatibles
Soporte de software

DIGITALTEMPSENSORSEVM-SW — Eval Board Software for Hardware Monitors and Digital Temp Sensors

Evaluation Board Software for Hardware Monitors and Digital Temperature Sensors
Productos y hardware compatibles
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
Modelo de simulación

LM93 IBIS Model

SNAM023.ZIP (5 KB) - Modelo IBIS
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (DGG) 56 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Soporte y capacitación

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

Ver todos los temas del foro en inglés

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Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

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