Texas Instruments

TL431IDBZR

TL431IDBZR Description

The TL431IDBZR from Texas Instruments is a precision adjustable shunt voltage reference designed for high-accuracy voltage regulation in power management applications. Housed in a compact SOT23-3 package and delivered in Tape & Reel (TR), this IC offers an adjustable output voltage range from 2.495V to 36V with a tight ±2.2% tolerance, ensuring reliable performance in demanding environments. With a 100 mA output current capability and a low 1 mA cathode current, it provides efficient voltage regulation while minimizing power dissipation. The device is RoHS3 compliant, REACH unaffected, and rated for MSL 1 (Unlimited) moisture sensitivity, making it suitable for industrial and consumer applications.

TL431IDBZR Features

• Adjustable Output Voltage (2.495V–36V): Enables flexible design for various voltage requirements.
• High Precision (±2.2% Tolerance): Ensures stable and accurate voltage referencing.
• Low Cathode Current (1 mA): Reduces power loss and improves efficiency.
• 100 mA Output Current: Supports higher load demands compared to similar shunt references.
• Surface-Mount (SOT23-3) Package: Ideal for space-constrained PCB designs.
• Wide Operating Temperature Range: Suitable for industrial and automotive applications.
• RoHS3 & REACH Compliant: Meets stringent environmental and safety standards.

TL431IDBZR Applications

The TL431IDBZR excels in:

• Voltage Regulation: Used in switch-mode power supplies (SMPS), linear regulators, and battery chargers.
• Error Amplification: Integrates into feedback loops for precise voltage control.
• Overvoltage Protection: Safeguards sensitive circuits by clamping excessive voltages.
• LED Drivers: Provides stable reference voltages for constant-current LED control.
• Industrial & Automotive Systems: Reliable performance in harsh environments due to robust construction.

Conclusion of TL431IDBZR

The TL431IDBZR stands out as a versatile, high-precision shunt voltage reference with adjustable output, low power consumption, and compact form factor. Its wide voltage range, high output current, and tight tolerance make it superior to basic fixed references, catering to advanced power management needs. Whether in consumer electronics, industrial controls, or automotive systems, this IC delivers consistent performance, making it a preferred choice for engineers seeking reliability and flexibility in voltage regulation.