TLV431ILP

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	TLV431
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:	80µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	--
Tolerance:	±1.5%
Current - Output:	15mA
Voltage - Output (Max):	6V
Voltage - Output (Min/Fixed):	1.24V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Active
Packaging:	Bulk

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Introduction
The TLV431ILP is a fixed reference voltage device with a nominal value of 4.096 V. This voltage is part of the family of fixed reference voltage devices, which are PMIC (Power Management ICs) and Voltage references. TLV431ILP devices are developed using advanced CMOS processing techniques to provide precise voltage and temperature discrimination. They are extremely precise and stable references, typically with an error of just 5 mV across the operating temperature range of -50 to +125°C. TLV431ILP application field and working principle will be explored further in the following sections.

TLV431ILP Application Field
TLV431ILP devices find application in various industrial, communications and consumer products. They offer numerous advantages, such as low-cost and simple solution, wide-range trimming, and complete protection from electrostatic discharge. The device is particularly suitable for digital systems and low-power applications, where precise reference voltages are required. The TLV431ILP application field includes the measurement of temperature and pressure, where the device can provide a precision voltage reference. It is also used in the calibration of laser power meters and thermoelectric couples, where the device is used to offer stability over temperature and time. TLV431ILP can be used for various data acquisition applications, as it provides a voltage regulated output with high accuracy and very low temperature coefficients. The device is also applicable in precision voltage-controlled oscillators (VCOs), low-noise pre-amps, and timing and pulse generation circuits, where it provides the stability of a precision voltage reference.

TLV431ILP Working Principle
TLV431ILP devices operate on the basis of a junction-gate field-effect transistor (JFET). The device is purpose-built to provide an unswitched voltage reference output with very low temperature coefficient and low noise. It is also used in a wide range of applications to provide low-voltage references with fixed levels. Inside the device, a thin-film resistor is connected in series with a voltage reference junction. This regulator contains a very accurate Zener diode, whose output is precisely regulated at the nominal voltage of 4.096 V. The voltage reference junction acts as a temperature sensor. This temperature detection mechanism compensates for temperature changes, in order to maintain a precisely maintained output voltage. The thin-film resistor, on the other hand, provides a voltage divider configuration. This helps in setting the output voltage to the desired value and also helps in maintaining this value with little or no temperature variation.

Summary
TLV431ILP devices are versatile voltage references, which are used in a wide range of applications, such as automotive, industrial, communications and consumer products. The device provides a precision voltage reference output, with low temperature coefficient and low noise levels. It comes with a nominal voltage of 4.096 V and an accuracy level of just 5 mV across the operating temperature range of -50 to +125°C. This device works on the principle of junction-gate field-effect transistors (JFET), a thin-film resistor, and a precision Zener diode, which are used to maintain a precisely maintained output voltage despite varying temperatures. TLV431ILP is therefore an ideal device for digital systems, low-power applications, and temperature and pressure measurement, among other applications.

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