LM77_TI 具有警报功能和 I2C/SMBus 接口的 ±1.5°C 温度传感器

LM77的基本参数

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 ±1.5°C 温度传感器
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LM77的产品详情：

The LM77 is a digital temperature sensor and thermal window comparator with an I²C Serial Bus interface. The window-comparator architecture of the LM77 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 T_HYST, 10°C T_LOW, 64°C T_HIGH, and 80°C T_CRIT.

The LM77's 3.0V to 5.5V supply voltage range, Serial Bus interface, 9-bit + sign output, and full-scale range of over 128°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, automotive, and HVAC applications.

LM77的优势和特性：

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 LM77s Can be Connected to a Single Bus
9-bit + Sign Output; Full-Scale Reading of Over 128°C
SOIC and VSSOP 8-lead Packages

Key Specifications

Supply Voltage 3.0V to 5.5V
Supply Current
- Operating250 μA (typ)500 μA (max)
- Shutdown5 μA (typ)
Temperature Accuracy
- ?10°C to 65°C, ±1.5°C(max)
- ?25°C to 100°C, ±2°C(max)
- ?55°C to 125°C, ±3°C(max)

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LM77的参数（英文）：

Local sensor accuracy (Max) (+/- C)
1.5
Type
Local
Operating temperature range (C)
-55 to 125
Supply voltage (Min) (V)
3
Interface type
I2C, SMBus
Supply voltage (Max) (V)
5.5
Supply current (Max) (uA)
500
Temp resolution (Max) (bits)
10
Remote channels (#)
0
Addresses
4
Rating
Catalog

LM77具体的完整产品型号参数及价格（美元）：

LM77的完整型号有：LM77CIM-3/NOPB、LM77CIM-5/NOPB、LM77CIMM-3/NOPB、LM77CIMM-5/NOPB、LM77CIMMX-3/NOPB、LM77CIMX-3/NOPB、LM77CIMX-5/NOPB、LM77CIM-3，以下是这些产品的关键参数及官网采购报价：

LM77CIM-3/NOPB，工作温度：-55 to 125，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LM77CIM-3/NOPB的批量USD价格：1.499（1000+）

LM77CIM-5/NOPB，工作温度：-55 to 125，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LM77CIM-5/NOPB的批量USD价格：1.499（1000+）

LM77CIMM-3/NOPB，工作温度：-55 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：1000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LM77CIMM-3/NOPB的批量USD价格：1.499（1000+）

LM77CIMM-5/NOPB，工作温度：-55 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：1000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LM77CIMM-5/NOPB的批量USD价格：1.259（1000+）

LM77CIMMX-3/NOPB，工作温度：-55 to 125，封装：VSSOP (DGK)-8，包装数量MPQ：3500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LM77CIMMX-3/NOPB的批量USD价格：1.259（1000+）

LM77CIMX-3/NOPB，工作温度：-55 to 125，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LM77CIMX-3/NOPB的批量USD价格：1.259（1000+）

LM77CIMX-5/NOPB，工作温度：-55 to 125，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LM77CIMX-5/NOPB的批量USD价格：1.259（1000+）

LM77CIM-3，工作温度：-55 to 125，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LM77CIM-3的批量USD价格：1.918（1000+）