具有警报功能和 I2C/SMBus 接口的 ±1.5°C 温度传感器 8-VSSOP -55 to 125
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 THYST, 10°C TLOW, 64°C THIGH, 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.
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM77CIMM-5/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM77CIM-3/NOPB 德州仪器 | 完全替代 | LM77CIMM-5/NOPB和LM77CIM-3/NOPB的区别 |
LM77CIMM-3/NOPB 德州仪器 | 完全替代 | LM77CIMM-5/NOPB和LM77CIMM-3/NOPB的区别 |
LM77CIM-5/NOPB 德州仪器 | 完全替代 | LM77CIMM-5/NOPB和LM77CIM-5/NOPB的区别 |