LM77CIMM-5

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Sensor Type:	Digital, Local
Sensing Temperature - Local:	-55°C ~ 125°C
Sensing Temperature - Remote:	--
Output Type:	I²C
Voltage - Supply:	3 V ~ 5.5 V
Resolution:	9 b
Features:	Output Switch, Programmable Limit, Shutdown Mode
Accuracy - Highest (Lowest):	±1.5°C (±3°C)
Test Condition:	-10°C ~ 65°C (-55°C ~ 125°C)
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	8-VSSOP

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Temperature Sensors – Analog and Digital Output

The LM77CIMM-5 is an integrated temperature-sensing device from National Semiconductor, designed and manufactured with the latest semiconductor fabrication techniques. This device measures temperature over a range of -55°C to +175°C, and provides a corresponding analog voltage output to read the temperature. It also provides a temperature-dependent, low-current, low-saturation voltage, TTL, CMOS, and open-collector outputs. The LM77CIMM-5 is a highly integrated, low-power, and cost-effective temperature sensing device suited for a wide range of applications. This device combines temperature sensing, analog-to-digital conversion, signal processing, and temperature compensation in a single 3-pin package. It is suitable for applications such as power supplies, industrial control systems, medical instrumentation, automotive systems, and consumer electronics.At the heart of the LM77CIMM-5 is a temperature sensing element consisting of a bipolar junction transistor (BJT) whose base-emitter junction is temperature sensitive. As the temperature increases, the voltage between the base and emitter increases at a linear rate. This voltage is then converted into a digital signal using a high-quality, low-noise analog-to-digital converter.The LM77CIMM-5 has two different output settings. The voltage mode outputs the measured temperature in an analog voltage form. The digital mode enables the device to output the temperature as a coded digital signal, which can be easily read using a microcontroller or other digital systems.The LM77CIMM-5 also features two different temperature ranges, a low range covering -55°C to 125°C, and a high range covering -55°C to +175°C. This dual-range operation enables the device to operate within the full temperature range of most automotive and industrial applications.The LM77CIMM-5 is equipped with an onboard thermal sensor, which measures the temperature of the device’s surrounding environment. This onboard sensor, in combination with the on-chip temperature control circuitry, allows the device to automatically maintain a steady state across a wide range of temperatures.The device also features several safety features, such as an over-temperature protection and a short-circuit protection system. The LM77CIMM-5 is packaged in a low-profile SOIC package, which is ideal for use in space-constrained applications.In conclusion, the LM77CIMM-5 is an ideal temperature sensing device for a wide range of applications. It provides a highly integrated, low-power, and cost-effective solution for measuring temperatures over a wide range. The device’s dual-range operation makes it suitable for both automotive and industrial applications, and its onboard safety features make it a reliable and secure option for use in any system.

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