Texas Instruments

TL431QDR

TL431QDR Description

The TL431QDR is an adjustable shunt voltage reference IC designed by Texas Instruments. This device is part of the Voltage References category and offers a highly accurate and stable reference voltage with minimal temperature drift. The TL431QDR features an adjustable output voltage ranging from 2.495V to 36V, making it suitable for a wide range of applications. It can provide an output current of up to 100 mA, ensuring robust performance in various electronic circuits. The device is housed in an 8-SOIC package and is available in a tape and reel (TR) format, facilitating easy surface mount assembly.

TL431QDR Features

• Adjustable Output Voltage: The TL431QDR provides an adjustable output voltage range from 2.495V to 36V, offering flexibility in circuit design.
• High Output Current: Capable of delivering up to 100 mA of output current, this IC is suitable for applications requiring higher current loads.
• High Accuracy: With a tolerance of ±2.2%, the TL431QDR ensures precise voltage regulation, critical for sensitive electronic systems.
• Low Cathode Current: The device operates with a low cathode current of 1 mA, minimizing power consumption and heat generation.
• Compliance and Reliability: The TL431QDR is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory adherence. It also has a moisture sensitivity level (MSL) of 1, making it suitable for unlimited storage and handling.
• Mounting Type: The surface mount technology (SMT) of the TL431QDR allows for efficient and compact PCB assembly.

TL431QDR Applications

The TL431QDR is ideal for a variety of applications due to its adjustable voltage range, high accuracy, and robust performance. Some specific use cases include:

• Power Supplies: As a voltage reference in switching power supplies and linear regulators, ensuring stable and accurate output voltage.
• Battery Management Systems: Providing a stable reference voltage for battery charging and monitoring circuits.
• Analog-to-Digital Converters (ADCs): Serving as a reference voltage source for ADCs to ensure accurate digital conversions.
• Precision Measurement Equipment: Used in precision measurement devices where accurate voltage references are crucial.
• Industrial Control Systems: Utilized in industrial control systems for stable voltage references in sensors and actuators.

Conclusion of TL431QDR

The TL431QDR from Texas Instruments stands out as a versatile and reliable voltage reference IC. Its adjustable output voltage, high accuracy, and robust performance make it an excellent choice for a wide range of electronic applications. The device's compliance with environmental and safety standards, along with its surface mount package, ensures ease of integration and long-term reliability. Whether used in power supplies, battery management systems, or precision measurement equipment, the TL431QDR delivers consistent and accurate voltage references, making it a preferred choice for engineers and designers in the electronics industry.