LM95233
- Accurately Senses Die Temperature of 2 Remote ICs or Diode Junctions and Local Temperature
- TruTherm BJT Beta Compensation Technology Accurately Senses Sub-Micron Process Thermal Diodes
- 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
- Programmable Digital Filters and Analog Front End Filter
- Remote Diode Fault Detection, Model Selection and Offset Correction
- Mask and Status Register Support
- 3 Programmable TCRIT Outputs with Programmable Shared Hysteresis
- 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: 3.0 to 3.6 V
- Average Supply Current (1Hz conversion rate): 0.57 mA (typ)
TruTherm is a trademark of Texas Instruments. All trademarks are the property of their respective owners.
LM95233 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) interface that can monitor the temperature of two remote diodes as well as its own temperature. The LM95233 can be used to very accurately monitor the temperature of up to two external devices such as microprocessors, graphics processors or diode-connected 2N3904s. The LM95233's TruTherm BJT beta compensation technology allows sensing of 90nm or 65nm process thermal diodes accurately.
The LM95233 reports temperature in two different formats for +127.875°C/–128°C range and 0°C/255°C range. The LM95233 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. LM95233's remote temperature channels have programmable digital filters to minimize unwanted TCRIT events when temperature spikes are encountered.
For optimum flexibility and accuracy each LM95233 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 LM95233s to the same SMBus master. The LM95233 includes power saving functions such as: programmable conversion rate, shutdown mode, and turn off of unused channels.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Dual Remote Diode and Local Temp Sensor w/SMBus I/F and TruTherm Technology 数据表 (Rev. E) | 2013-3-22 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
LM95234SW-LINUX — 用于 LM95234 的 Linux 驱动程序
Linux 驱动程序支持 LM95234 系列远程和本地温度传感器。Linux 驱动程序支持通过 I2C 总线和接口与硬件监测子系统进行通信。
Linux 主线状态在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用
- lm95233
- lm95234
与该器件关联的文件为：
- drivers/hwmon/lm95234.c
- Documentation/hwmon/lm95234
启用驱动程序支持
使用“make (...)
SENSOREVAL — Eval Board Software For Hardware Monitors And Digital Temperature Sensors
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
许多 TI 参考设计都包括 LM95233
通过我们的参考设计选择工具来审查并确定最适用于您应用和参数的设计。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (NHL) | 14 | Ultra Librarian |