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.

• 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.

• Local sensor accuracy (Max) (+/- C)
• 3
• Type
• Fan Controller
• Operating temperature range (C)
• 0 to 85
• Supply voltage (Min) (V)
• 3
• Interface type
• SMBus
• Supply voltage (Max) (V)
• 3.6
• Supply current (Max) (uA)
• 900
• Temp resolution (Max) (bits)
• 8
• Features
• PWM output, Tachometer
• Remote channels (#)
• 2
• Addresses
• 3
• Rating
• Catalog

LM93的完整型号有：LM93CIMT/NOPB、LM93CIMTX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM93CIMT/NOPB，工作温度：0 to 85，封装：TSSOP (DGG)-56，包装数量MPQ：34个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网LM93CIMT/NOPB的批量USD价格：6.21（1000+）

LM93CIMTX/NOPB，工作温度：0 to 85，封装：TSSOP (DGG)-56，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网LM93CIMTX/NOPB的批量USD价格：5.175（1000+）

DIGITALTEMPSENSORSEVM-SW — 用于硬件监控器和数字温度传感器的评估板软件

Evaluation Board Software for Hardware Monitors and Digital Temperature Sensors

LM93SW-LINUX — 用于 LM93 的 Linux 驱动程序

Linux 驱动程序支持 LM93 系列硬件监测计。Linux 驱动程序支持通过 I2C 总线进行通信，并可与硬件监控子系统交互。
Linux 主线状态

在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用

支持的器件：

• lm93
• lm94

Linux 源文件

与该器件关联的文件为：

drivers/hwmon/lm93.c

Documentation/hwmon/lm93

源文件

drivers/hwmon/lm93.c

其他文件

Documentation/hwmon/lm93

启用驱动程序支持 使用“make menuconfig”（也可以使用“make (...)

SENSOREVAL — 用于硬件监控器和数字温度传感器的评估板软件

SensorEval
SensorEval 软件支持通过 USB 接口连接的 TI 最新温度传感器和硬件监控器评估板。此外，该软件还允许访问直接安装在支持 Intel 芯片组的主板上的传感器。

• 下载 SensorEval 软件和手册
• 为以下各项提供 Windows XP 支持：
  • USB 评估板（LM93 除外）
  • Intel ICHx 接口（ADCS9888、LM32、LM40、LM41、LM71、LM95010 和 LM95071 除外）
  • “无硬件”模式支持在没有任何硬件的情况下运行软件