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TL1431AIZT Application Field and Working principle

PMIC (Power Management Integrated Circuit) Voltage Reference is a type of integrated circuit that measures and regulates voltage. It maintains a precise voltage reference level to ensure that circuits are operating at the correct voltage. TL1431AIZT is a fixed voltage reference IC developed by Texas Instruments for low-voltage operation. It provides precise, temperature-stable and low-power voltage reference for power management ICs in a range of applications, such as test equipment, computer monitoring and medical electronics.

TL1431AIZT Features

The TL1431AIZT has low-voltage operation, enabling its use in critical low-voltage circuits. It also features a high threshold accuracy of 0.05% over the temperature range of -40°C to +85°C, which is ideal for precise voltage reference. It has an output voltage of 2.5V, 2.6V, 2.7V, 2.8V and 2.9V, which can be adjusted via a single external resistor. Furthermore, it has a temperature coefficient of 15 ppm/°C and low power consumption, making it a perfect voltage reference for low-power circuits.

TL1431AIZT Operating Principle

The TL1431AIZT dedicates its internal circuitry to maintain an accurate voltage reference across a wide temperature range. It is designed to provide a low-voltage reference with superior accuracy and low-threshold value. The IC features an internal reference current to generate its output voltage while also filtering out external noise. The internal reference current is combined with an external resistor to generate a precise output voltage. The value of the reference resistor can be easily adjusted to set the threshold voltage to any of the above mentioned values. The TL1431AIZT also includes an optional enable pin to reduce its power consumption even further.

TL1431AIZT Applications

TL1431AIZT is ideal for critical low-voltage circuits, such as test equipment, computer monitoring, medical electronics, as well as other applications such as battery-powered systems. Its high threshold accuracy and low-power consumption also makes it a great choice for automotive, industrial and communications applications. The TL1431AIZT can also be used in power supply sequencing circuits to guarantee that each of the sequence stages occurs in the right order and at the right voltage.

Conclusion

TL1431AIZT is a fixed voltage reference IC developed by Texas Instruments for low-voltage operation. It provides precise, temperature-stable and low-power voltage reference for power management ICs. It features low-voltage operation, high threshold accuracy, an output voltage range of 2.5V-2.9V, a temperature coefficient of 15 ppm/°C and low power consumption, making it ideal for critical low-voltage circuits. It can be used in a range of applications, such as test equipment, computer monitoring, medical electronics, automotive, industrial, communications and power supply sequencing circuits.

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