TL431BCDBVR

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	TL431B
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Current - Cathode:	600µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	--
Tolerance:	±0.5%
Current - Output:	100mA
Voltage - Output (Max):	36V
Voltage - Output (Min/Fixed):	2.495V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

TL431BCDBVR is a three-terminal adjustable Shunt regulator with display voltage reference. It is designed to provide accurate, low power, and adjustable line regulation over a wide input voltage range. The TL431BCDBVR can be used as a replacement for discrete reference sources and to eliminate the need for precision trimming. The device is intended to provide excellent line regulation, flat temperature coefficient and low power dissipation. It is widely used in a variety of power management, motor control and automotive applications.

Application Field

The TL431BCDBVR is used for a variety of applications, including electronic circuits, as reference for adjustable voltage regulators, DC/DC converters and linear regulators, primary power supplies, current sources, and voltage references. In addition, this device can be used in applications such as bypass switching, energy management, EMS, motor controllers, switching power supplies, power over Ethernet, power semiconductor inverters, and many other applications. Its wide input voltage range allows it to be used in a wide variety of systems.

Working Principle

The TL431BCDBVR is designed to be used as an adjustable voltage reference in a variety of applications. The device features an integrated reference voltage and a series of resistors connected to the adjustable output to create the desired voltage. The voltage reference is usually set up with a certain number of intervals of voltage outputs and the voltage is adjusted by connecting resistors or capacitors to the adjustable output terminal. The output of the TL431BCDBVR is adjusted by connecting one of the voltage intervals (V+ or V-) to the adjustable output terminal.The TL431BCDBVR is composed of an integrated temperature-compensated Bandgap Reference and a series of resistors connected to the adjustable output. The reference voltage is stable over temperature and supplies 1.2V up to 10V. The output voltage is adjustable from 0.6 V to 10V by connecting the appropriate resistors or capacitors to the adjustable output terminal. The output voltage is controlled by the reference voltage, the resistors, and the capacitors.When the voltage reference is set and the output is adjusted according to the settings, the output voltage of the TL431BCDBVR is then inversely proportional to the internal resistance. This means that when the internal resistance is increased, the output voltage is decreased and when the internal resistance is decreased, the output voltage is increased.

Conclusion

The TL431BCDBVR is a three-terminal adjustable shunt regulator with display voltage reference. It is designed for a wide range of applications, including electronic circuits, as reference for adjustable voltage regulators, DC/DC converters and linear regulators, primary power supplies, current sources, and voltage references. The device is intended to provide excellent line regulation, flat temperature coefficient and low power dissipation. The output voltage is adjustable from 0.6V to 10V by connecting resistors or capacitors to the adjustable output terminal. It has been widely used in a variety of power management, motor control and automotive applications.

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