LM76
- Window Comparison Simplifies Design of ACPI Compatible Temperature Monitoring and Control.
- Serial Bus Interface
- Separate Open-Drain Outputs for Interrupt and Critical Temperature Shutdown
- Shutdown Mode to Minimize Power Consumption
- Up to 4 LM76s can be Connected to a Single Bus
- 12-bit + Sign Output; Full-scale Reading of Over 127°C
Key Specifications
- Supply Voltage 5.0V
- Supply Current
- Operating250 µA (typ)450 µA (max)
- Shutdown8 µA (max)
- Temperature +25ºC ±0.5ºC (max)
- Accuracy–10ºC to +45ºC ±10°C (max)70°C to 100°C ±1.0°C (max)
- Resolution 0.0625°C
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The LM76 is a digital temperature sensor and thermal window comparator with an I2C Serial Bus interface with an accuracy of ±1°C. This accuracy for the LM76CHM is specified for a −10°C to 45°C temperature range. The LM76CHM is specified with an accuracy ±0.5°C at 25°C. The window-comparator architecture of the LM76 eases the design of temperature control systems conforming to the ACPI (Advanced Configuration and Power Interface) specification for personal computers. The open-drain Interrupt (INT) output becomes active whenever temperature goes outside a programmable window, while a separate Critical Temperature Alarm (T_CRIT_A) output becomes active when the temperature exceeds a programmable critical limit. The INT output can operate in either a comparator or event mode, while the T_CRIT_A output operates in comparator mode only.
The host can program both the upper and lower limits of the window as well as the critical temperature limit. Programmable hysterisis as well as a fault queue are available to minimize false tripping. Two pins (A0, A1) are available for address selection. The sensor powers up with default thresholds of 2°C THYST, 10°C TLOW, 64°C THIGH, and 80°C T_CRIT.
The LM76's 5.0V supply voltage, Serial Bus interface, 12-bit + sign output, and full-scale range of over 127°C make it ideal for a wide range of applications. These include thermal management and protection applications in personal computers, electronic test equipment, office electronics and bio-medical applications.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM76 +/0.5, 12-Bit + Dig Temp Sens & Therml Wndow Compartr w/2-Wire Intrface 数据表 (Rev. E) | 2013年 3月 22日 | |||
应用手册 | Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A) | 2013年 5月 6日 |
设计和开发
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- 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/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点