LM236H-2.5/NOPB

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The LM236H-2.5/NOPB is an example of a voltage reference (VR) integrated circuit in the family of PMICs ( Power Management Integrated Circuits). It is built by Texas Instruments and is a low power device with a low temperature coefficient voltage reference. It has the capability to accurately supply a constant voltage across a broad range of currents and temperatures. In this article, the application field and working principle of the LM236H-2.5/NOPB will be described.

The LM236H-2.5/NOPB is mainly employed in industrial, automotive, and medical applications. It is used to accurately measure the output voltage of a battery, as it can provide a steady output voltage despite the varying input voltage and conditions. It is also often used to control the output and feedback of motor drivers, where its stability and accuracy is much appreciated. It is designed to withstand a wide range of temperatures, making it suitable for many use cases in particularly demanding or high temperature environments. Aside from these, it can also be used as an active voltage regulator in power supplies and as a temperature sensor, as its output is proportional to temperature changes.

Now let\'s look at the working principle of the LM236H-2.5/NOPB. It contains an integrated circuit which consists of two transistors that form a differential pair with high gain, those being the reference and the common-base amplifier transistors. The amplifier connects to the reference transistor, and its gain is determined by the voltage across the base-emitter junction of the reference transistor. This output voltage is directly proportional to the reference-emitter voltage, along with a gain coefficient of the amplifier transistors. By connecting the feedback resistor to the reference, the output can be adjusted to the desired level. The gain of the amplifiercan be further adjusted by changing the output current. In this way, the LM236H-2.5/NOPB produces a highly accurate output voltage which is stable even in dynamic conditions.

The effectiveness of the LM236H-2.5/NOPB is owed to its inherently low temperature coefficient, which is 0.08%/°C. This means that the output voltage will remain accurate across a wide range of temperatures. Furthermore, its maximum operating temperature ranges from -40°C to +125°C, due to its wide power supply range of 3.15 to 12V. As such, it is a great choice for both commercial and industrial temperature sensing or precision voltage regulation.

In sum, the LM236H-2.5/NOPB is a useful device for automotive, medical, and industrial applications due to its excellent temperature stability and precision output voltage. It provides wide-ranging temperature coefficients and excellent voltage stability, allowing it to accurately measure the outputs from battery cells and provide precise voltage regulation.

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