- 制造厂商：TI
- 产品类别：传感器
- 技术类目：温度传感器和控制 IC - 数字温度传感器
- 功能描述：具有警报功能和 I2C/SMBus 接口的 ±1°C 温度传感器
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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.
- 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
- ?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
All trademarks are the property of their respective owners.
- Local sensor accuracy (Max) (+/- C)
- 1
- Type
- Local
- Operating temperature range (C)
- -55 to 150
- Supply voltage (Min) (V)
- 4.5
- Interface type
- I2C, SMBus
- Supply voltage (Max) (V)
- 5.5
- Supply current (Max) (uA)
- 450
- Temp resolution (Max) (bits)
- 13
- Features
- ALERT
- Remote channels (#)
- 0
- Addresses
- 4
- Rating
- Catalog
LM76的完整型号有：LM76CHM-5/NOPB、LM76CHMX-5/NOPB、LM76CHM-5，以下是这些产品的关键参数及官网采购报价：
LM76CHM-5/NOPB，工作温度：-55 to 150，封装：SOIC (D)-8，包装数量MPQ：95个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM76CHM-5/NOPB的批量USD价格：1.547（1000+）
LM76CHMX-5/NOPB，工作温度：-55 to 150，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM76CHMX-5/NOPB的批量USD价格：1.309（1000+）
LM76CHM-5，工作温度：-55 to 150，封装：SOIC (D)-8，包装数量MPQ：95个，MSL 等级/回流焊峰值温度：Level-1-235C-UNLIM，引脚镀层/焊球材料：SNPB，TI官网LM76CHM-5的批量USD价格：1.964（1000+）
LM76CHM-5/NOPB，工作温度：-55 to 150，封装：SOIC (D)-8，包装数量MPQ：95个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM76CHM-5/NOPB的批量USD价格：1.547（1000+）
LM76CHMX-5/NOPB，工作温度：-55 to 150，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM76CHMX-5/NOPB的批量USD价格：1.309（1000+）
LM76CHM-5，工作温度：-55 to 150，封装：SOIC (D)-8，包装数量MPQ：95个，MSL 等级/回流焊峰值温度：Level-1-235C-UNLIM，引脚镀层/焊球材料：SNPB，TI官网LM76CHM-5的批量USD价格：1.964（1000+）
