TLVH431AQLPRE3

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TLVH431AQLPRE3 is a precision high-current voltage reference from Texas Instruments. It is a PMIC (Power Management IC) Voltage Reference. It is used in a variety of applications. This is a comprehensive guide to TLVH431AQLPRE3 where its application fields and working principles are discussed in detail.

Overview

TLVH431AQLPRE3 belongs to a portfolio of low-dropout (LDO) voltage references and voltage regulators. It is a 2.5 V precision voltage reference with an accuracy of ±0.3% and a temperature coefficient of 0.25 ppm/°C. It can provide up to 200 mA of output current while operating over an extended temperature range (−40°C to 125°C). It is offered in SOT-23-5, SOT-23-6, and ultra-small SOT-23-3 packaging making it ideal for space-constrained designs. It features advanced safety features such as overtemperature shut-down, overcurrent protection, and undervoltage lockout, which make it ideal for industrial, automotive, and avionic applications.

Features and Benefits

TLVH431AQLPRE3 has multiple features and benefits. It has a low dropout voltage and maximum current of 200 mA and low quiescent current. It offers exceptional long-term stability and low temperature coefficient of 0.25 ppm/°C. It also has a very high output accuracy of ±0.3%. It has an extremely wide operating temperature range of -40°C to 125°C. It is available in a range of small packages, such as SOT-23-5, SOT-23-6 and ultra-small SOT-23-3, which makes it suitable for space-constrained design. In addition, it has advanced safety features such as overtemperature shut-down, overcurrent protection, and undervoltage lockout. These features make plan for the future applications.

Application fields

TLVH431AQLPRE3 is suitable for a number of industrial, automotive, and avionic applications. Its precision voltage reference and wide operating temperature range make it ideal for precision current-loop control in various industrial applications. It can be used for motor control, solar power systems, and power system monitoring. Additionally, its advanced safety features make it suitable for automotive systems, such as fuel injection, engine control, and braking systems. For avionic systems, it can be used as a reference in flight radio, avionics, and navigational systems.

Working Principle

TLVH431AQLPRE3 is a 2.5 V precision voltage reference that is based on the bandgap reference technique. In this technique, the desired reference voltage is generated by comparing two opposing temperature-stable output voltages. The voltage reference circuit is then fine-tuned by an active trim circuit to ensure an accurate output voltage. The device also has an enable input (EN) pin, which allows the reference voltage to be either enabled or disabled by an external signal.The TLVH431AQLPRE3 also has an internal over-temperature shutdown circuit which prevents the output voltage from exceeding a specified maximum temperature. Additionally, the device is protected from over-current conditions by limiting the output voltage. This ensures that the device does not suffer from damage due to excessive current.

Conclusion

TLVH431AQLPRE3 is a precision high-current voltage reference from Texas Instruments. It is an ideal PMIC (Power Management IC) Voltage Reference for industrial, automotive, and avionic applications. It has multiple features and benefits, such as a low drop-out voltage and maximum current of 200 mA and low quiescent current. It also offers exceptional long-term stability and excellent output accuracy. Additionally, it has advanced safety features such as overtemperature shut-down, overcurrent protection, and undervoltage lockout. These features ensure that the device is protected from damage due to excessive current or temperature.Overall, TLVH431AQLPRE3 is an excellent choice for precision current control and is suitable for a variety of applications in industrial, automotive, and avionic fields.

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