Texas Instruments

TL431BQPK

TL431BQPK Description

The TL431BQPK is a precision adjustable shunt voltage reference IC from Texas Instruments, designed for a wide range of power management applications. This device features an adjustable output voltage ranging from 2.495V to 36V, making it highly versatile for various electronic circuits. With a maximum output current of 100 mA and a cathode current of 700 µA, the TL431BQPK ensures stable and reliable performance. The device is housed in a surface-mount SOT89-3 package, which is ideal for compact designs and high-density PCB layouts.

TL431BQPK Features

• Adjustable Output Voltage: The TL431BQPK offers an adjustable output voltage range from 2.495V to 36V, providing flexibility for diverse applications.
• High Output Current: Capable of delivering up to 100 mA, this IC can support a variety of load requirements.
• Precision Reference: With a tolerance of ±0.5%, the TL431BQPK ensures high accuracy in voltage regulation.
• Shunt Reference Type: As a shunt reference, it provides a stable voltage reference by shunting excess current.
• Surface Mount Packaging: The SOT89-3 package is suitable for surface-mount technology, enabling compact and efficient PCB designs.
• Compliance and Reliability: The TL431BQPK is REACH unaffected and RoHS3 compliant, ensuring environmental and regulatory standards are met. It also has a moisture sensitivity level (MSL) of 2 ( Year1), enhancing its reliability in various environmental conditions.
• Active Product Status: This IC is actively manufactured and supported by Texas Instruments, ensuring long-term availability and technical support.

TL431BQPK Applications

The TL431BQPK is ideal for a variety of applications where precise voltage regulation is required. Some specific use cases include:

• Power Supplies: Used in linear and switching power supplies to provide a stable reference voltage.
• Battery Management Systems: Ensures accurate voltage monitoring and regulation in battery charging and discharging circuits.
• Voltage Regulators: Acts as a reference in feedback loops of voltage regulators to maintain output voltage stability.
• Precision Measurement Equipment: Provides a stable reference voltage for accurate measurements in laboratory and industrial equipment.
• Consumer Electronics: Used in devices such as smartphones, tablets, and laptops for voltage regulation and power management.

Conclusion of TL431BQPK

The TL431BQPK from Texas Instruments is a robust and versatile adjustable shunt voltage reference IC, offering high precision and reliability. Its wide adjustable voltage range, high output current capability, and compact surface-mount packaging make it suitable for a broad range of power management applications. The device's compliance with REACH and RoHS3 standards, along with its active product status, ensures long-term availability and environmental sustainability. Whether used in power supplies, battery management systems, or precision measurement equipment, the TL431BQPK stands out as a reliable and high-performance solution in the electronics industry.