TL431ILPE3

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	TL431
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	1mA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	--
Tolerance:	±2.2%
Current - Output:	100mA
Voltage - Output (Max):	36V
Voltage - Output (Min/Fixed):	2.495V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Active
Packaging:	Bulk

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Introduction

The TL431ILPE3 is a three-terminal adjustable shunt regulator, developed by Texas Instruments for use in various applications. It is a low-dropout voltage reference IC that combines a number of features in a single package, including an adjustable voltage reference, current limiting, and adjustable current sources. The device is available in both an SC-70 and a flat-pack 3-pin package.

Application Fields

The TL431ILPE3 can be used for a variety of applications. It is particularly suited for use as an adjustable voltage reference for many low-voltage applications, such as on-board battery monitoring and charging, AC or DC power conversion, and other voltage regulation systems. It can also be used in a variety of analog circuits, such as active filter, Gain-Bandwidth product (GBW) control, and line-conditioning/noise filtering applications.Furthermore, the TL431ILPE3 is an excellent choice for use in many automotive circuit applications, such as car audio, navigation and entertainment systems. The device’s low-dropout voltage and high accuracy make it an ideal choice for these low-voltage circuits.

Working Principle

The TL431ILPE3 consists of an adjustable voltage reference and an integrated current source. The voltage reference is adjustable, allowing it to be used for a variety of applications, as previously mentioned. The integrated current source limits the overall current draw from the device to a maximum of 500mA.When the TL431ILPE3 is used in a circuit, the voltage reference and current source are connected in parallel. The voltage reference provides a regulated output voltage, while the current source limits the amount of current drawn from the source. The voltage reference and the current source can both be adjusted by changing the external resistors in the circuit.The TL431ILPE3 also has an error amplifier which allows it to correct for any errors in the output voltage. This feature allows the device to maintain a very accurate reference voltage, without any drift.

Conclusion

The TL431ILPE3 is a versatile, low-dropout voltage reference IC that is designed for a variety of applications. It has adjustable voltage and current sources and a built-in error amplifier. These features make it an ideal choice for applications such as battery monitoring and charging, power conversion and line filtering. The device is available in two package types, making it an optimal choice for many circuit applications.

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