TL431AILPRM

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Voltage reference, or bandgap reference, is essentially a voltage source that provides a relatively constant output voltage regardless of the changes in load current or supply voltage. In other words, it can be thought of as an ideal voltage source. The TL431AILPRM is an adjustable precision low power three-terminal shunt regulator with integrated bandgap reference and an operating temperature range of -40 to +125 degrees Celsius. The device has high accuracy and excellent temperature stability over a wide range of temperature ranges.

The TL431AILPRM is a popular choice for many applications due to its low power, precise output voltage accuracy and wide temperature range. In particular, it is commonly used as a voltage reference for power supply regulators, linear regulators, current references, voltage references, voltage detectors and comparators. Additionally, its adjustable output makes it useful in level-setting applications, such as power supply ripple detection, precision temperature compensators, voltage limiters and line regulation applications.

The TL431AILPRM works on a principle of a series bandgap reference. The output voltage of the device is determined by the ratio of two resistors. The reference voltage is generated by the bandgap reference and is compared with the result of the voltage divider. The output voltage is then adjusted so that the voltage difference is zero. A controlling amplifier is used to maintain the output voltage. The adjustable reference voltage range is typically between 1.2V and 36V.

Further, the power supply rejection ratio is also very good for the TL431AILPRM, making it ideal for applications where the output voltage may be susceptible to variations due to changes in the supply voltage. In addition, the device is also highly immune to noise, making it suitable for use in noisy environments.

The TL431AILPRM is available in a wide range of packages, including various PowerPAK options, SOIC, SOT-23 and SC-59 packages. The device is also RoHS compliant and has a low-power consumption, making it ideal for applications where power efficiency is a priority.

In conclusion, the TL431AILPRM is a highly useful and versatile voltage reference with a wide temperature range, low power consumption and good accuracy. Its adjustable output makes it suitable for a range of applications, such as voltage limiters, current references and line regulation, while its immunity to noise and good power supply rejection rate makes it ideal for use in low-noise environments.

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