产品详细信息

Local sensor accuracy (Max) (+/- C) 2 Type Local Operating temperature range (C) -55 to 125 Supply voltage (Min) (V) 2.7 Interface type I2C, SMBus Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 500 Temp resolution (Max) (bits) 9 Features ALERT, UL recognized Remote channels (#) 0 Addresses 8 Rating Catalog
Local sensor accuracy (Max) (+/- C) 2 Type Local Operating temperature range (C) -55 to 125 Supply voltage (Min) (V) 2.7 Interface type I2C, SMBus Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 500 Temp resolution (Max) (bits) 9 Features ALERT, UL recognized Remote channels (#) 0 Addresses 8 Rating Catalog
SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • 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)
  • 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)

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.

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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TMP1075 正在供货 1°C I²C 温度传感器,性能已升级,与业界通用 LM75/TMP75 相当 This product is a digital temperature sensor with improved accuracy (±1°C) and lower max current consumption (4µA)

技术文档

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类型 标题 下载最新的英文版本 日期
* 数据表 LM75A Digital Temperature Sensor and Thermal Watchdog With Two-Wire Interface 数据表 (Rev. P) 2014年 12月 30日
技术文章 How to choose the right thermistor for your temperature sensing application 2020年 2月 13日
技术文章 How to enable thermal safety for automotive infotainment and cluster systems 2019年 10月 15日
技术文章 Driving industrial innovation with small-size sensors 2019年 9月 12日
应用手册 Temperature Sensors: PCB Guidelines for Surface Mount Devices (Rev. A) 2019年 1月 18日
技术文章 How to select a temperature sensor probe 2016年 2月 18日
应用手册 Applying I2C Compatible Temperature Sensors in Systems with Slow Clock Edges (Rev. A) 2013年 5月 6日
用户指南 LM75A User’s Guide 2013年 1月 17日
用户指南 LM75AEB User’s Guide (Rev. A) 2012年 8月 24日
应用手册 Tiny Temperature Sensors for Remote Systems 2003年 2月 17日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

驱动程序或库

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

支持的器件:
  • LM75A
  • TMP100
  • TMP101
  • TMP105
  • TMP112
  • TMP175
  • TMP275
  • TMP75
  • TMP1075
Linux 源文件

与该器件关联的文件为:

  1. drivers/hwmon/lm75.c
  2. Documentation/devicetree/bindings/i2c/trivial-devices.txt
  3. drivers/hwmon/lm75.h
  4. (...)
驱动程序或库

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
仿真模型

LM75A IBIS Model

SNOM549.ZIP (33 KB) - IBIS Model
封装 引脚 下载
SOIC (D) 8 了解详情
VSSOP (DGK) 8 了解详情

订购与质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

推荐产品的参数、评估模块或参考设计可能与此 TI 产品相关

支持与培训

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