TL431AIDBZR Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Reference Type:	Shunt
Output Type:	Adjustable
Voltage - Output (Min/Fixed):	2.495V
Voltage - Output (Max):	36V
Current - Output:	100mA
Tolerance:	±1%
Temperature Coefficient:	--
Noise - 0.1Hz to 10Hz:	--
Noise - 10Hz to 10kHz:	--
Voltage - Input:	--
Current - Supply:	--
Current - Cathode:	700µA
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	TL431A

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Introduction

The TL431AIDBZR is a voltage reference IC that provides a stable output voltage, making it ideal for use in precision voltage regulation circuits and applications requiring high accuracy and low drift. This IC can be used in a variety of applications such as motor speed control circuits, voltage reference circuits, self-regulated supplies and safety interlocks. It is available in a variety of packages and temperature ranges.

Application Field

In automotive systems, the TL431AIDBZR is commonly used to provide a stable reference for vehicle speed control circuits, power supplies, and other control systems. It is also used in some industrial control systems to provide precision references for process controllers and other systems. In robotic and automation applications, the TL431 is often used as the reference circuit in positioning systems, motor control systems, and other control applications. Its stable output voltage allows it to be used as a reference for motor speed and position control. In medical systems, the TL431AIDBZR is often used as the reference for patient monitoring equipment and medical instrumentation. Its high accuracy and low drift make it an ideal choice for medical applications requiring high accuracy and repeatability.In communications systems, the TL431AIDBZR is often used as the reference for radio frequency (RF) applications such as wireless communications, frequency synthesizers, and handset calibration systems. Its low noise and stable output make it an ideal choice for RF applications. The TL431AIDBZR is also used in consumer audio-visual equipment such as TVs, video players, and audio amplifiers. Its stable output voltage provides a reliable reference for voltage regulation of these types of devices.

Working Principle

The TL431AIDBZR is based on an externally-adjustable bandgap reference topology, which uses an external resistor to adjust the output voltage. At its design, the output voltage is determined by the following formula: Vout = (VREF x R1)/(R1 + R2) where VREF is the reference voltage of the device, and R1 and R2 are the two external resistors. The external resistor network also allows for trimming or fine-tuning of the output voltage. By varying the voltage of the external resistors, the output voltage can be adjusted to the desired value.The TL431AIDBZR also features an internal self-protection circuit that can protect from over-voltage and over-current conditions. This protection circuit can be enabled or disabled using a control pin.The TL431AIDBZR also features a low temperature coefficient and low noise output, making it suitable for applications where high accuracy and repeatability are required.

Conclusion

The TL431AIDBZR is a voltage reference IC that is suitable for a wide range of applications. Its external resistor network allows for easy trimming or fine-tuning of the output voltage, while its internal self-protection circuit can protect from over-voltage and over-current conditions. Its low temperature coefficient and low noise output make it an ideal choice for applications where high accuracy and repeatability are required.

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