LM75A
- No External Components Required
- Shutdown Mode to Minimize Power Consumption
- Up to Eight LM75As can be Connected to a Single Bus
- Power up Defaults Permit Stand-Alone Operation as Thermostat
- Key Specifications:
- Supply Voltage
- LM75A: 2.7 V to 5.5 V
- Supply Current
- Operating: 280 µA (Typical)
- Shutdown: 4 µA (Typical)
- Temperature Accuracy
- 25°C to 100°C: ±2°C (Max)
- 55°C to 125°C: ±3°C (Max)
- Supply Voltage
The LM75A is an industry-standard digital temperature sensor with an integrated sigma-delta analog-to-digital converter (ADC) and I2C interface. The LM75A provides 9-bit digital temperature readings with an accuracy of ±2°C from –25°C to 100°C and ±3°C over –55°C to 125°C.
The LM75A operates with a single supply from 2.7 V to 5.5 V. Communication is accomplished over a 2-wire interface which operates up to 400 kHz. The LM75A has three address pins, allowing up to eight LM75A devices to operate on the same 2-wire bus. The LM75A has a dedicated overtemperature output (O.S.) with programmable limit and hysteresis. This output has programmable fault tolerance, which lets the user to define the number of consecutive error conditions that must occur before O.S. is activated. The wide temperature and supply range and I2C interface make the LM75A ideal for a number of applications including base stations, electronic test equipment, office electronics, personal computers, and any other system in which thermal management is critical to performance. The LM75A is available in an SOIC-8 package and an VSSOP-8 package.
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功能优于比较器件，可直接替换。
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 | LM75A Digital Temperature Sensor and Thermal Watchdog With Two-Wire Interface 数据表 (Rev. P) | PDF | HTML | 2014-12-30 | ||
| 应用手册 | LM75B 和 TMP1075 业界通用器件：设计指南和规格比较 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-3-15 | |
| 应用手册 | Temperature sensors: PCB guidelines for surface mount devices (Rev. A) | 2019-1-18 | ||||
| 应用手册 | Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A) | 2013-5-6 | ||||
| 用户指南 | LM75A User’s Guide | 2013-1-17 | ||||
| 用户指南 | LM75AEB User’s Guide (Rev. A) | 2012-8-24 | ||||
| 应用手册 | Tiny Temperature Sensors for Remote Systems | 2003-2-17 |
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）。
LM75SW-LINUX — 用于 LM75 的 Linux 驱动程序
Linux 驱动程序支持 LM75 兼容温度传感器。Linux 驱动程序支持通过 I2C 总线进行通信，并可与硬件监测子系统接口连接。
Linux 主线状态在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用
- LM75A
- TMP100
- TMP101
- TMP105
- TMP112
- TMP175
- TMP275
- TMP75
- TMP1075
与该器件关联的文件为：
- drivers/hwmon/lm75.c
- Documentation/devicetree/bindings/i2c/trivial-devices.txt
- drivers/hwmon/lm75.h
- (...)
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
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |