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TL431BMFDT

Name: TL431BMFDT
Rating: 4.7 (12 reviews)

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概述

Description

The TL431BMFDT is a programmable shunt voltage reference and adjustable regulator commonly used in electronic circuits. It features a three-terminal design, allowing it to operate as a voltage reference or a feedback control element in power supplies. The device provides precise voltage regulation with a reference voltage of 2.5V, and its output can be adjusted from 2.5V to 36V by using external resistors.
Key features include low output impedance, fast response time, and wide supply voltage range, making it suitable for various applications including power management, signal processing, and analog systems. The TL431BMFDT can operate in a variety of configurations, enabling it to function effectively in linear regulators and as a voltage comparator.
The device is available in a compact surface-mount package, enhancing its suitability for space-constrained applications. Its versatility and reliability have made it a popular choice in consumer electronics, industrial equipment, and automotive applications.

Features

The TL431BMFDT is a precision voltage reference and adjustable shunt regulator. Key features include:
1. Adjustable Output Voltage: The output voltage can be set from 1.25V to 36V, allowing flexibility for various applications.
2. High Accuracy: It offers a typical voltage reference accuracy of ±1% at 25°C.
3. Temperature Stability: The device exhibits good thermal stability, helping maintain performance across temperature ranges.
4. Low Output Impedance: Provides low output impedance, enhancing performance in feedback loops.
5. Wide Operating Range: It operates over a broad input voltage range from 2.5V to 36V.
6. Current Regulation: Capable of regulating currents, making it suitable for LED drivers and other applications.
7. Compact Package: The BMFDT package is small, integrating well into space-constrained designs.
8. Applications: Commonly used in power supplies, voltage regulation, and feedback control circuits.
This versatility makes the TL431BMFDT a popular choice in various electronic designs.

Package

The TL431BMFDT is available in a SOT-23 package type, which is a small, surface-mount device package suitable for compact applications.

Pinout

The TL431BMFDT is a programmable shunt voltage reference with a total of 3 pins.
1. Reference (Ref) - This pin provides a voltage reference point. It is typically connected to a feedback network in applications for precise voltage regulation.

2. Anode (A) - This pin is connected to the cathode of the shunt regulator. It serves as the negative terminal for current flow when the device is in regulation.
3. Cathode (K) - This pin is the output of the shunt regulator. It provides a regulated voltage to the load, and it is where the reference voltage is maintained.
The TL431 operates over a wide voltage range, typically from 2.5V to 36V, and is useful in applications such as power supplies and voltage regulation circuits.

Manufacturer

The TL431BMFDT is manufactured by Texas Instruments, a globally recognized company in the semiconductor industry. Texas Instruments (TI) specializes in designing and manufacturing a wide range of analog and embedded processing chips. With a strong emphasis on innovation, TI serves various markets including industrial, automotive, communications, and consumer electronics. The TL431 is a programmable shunt voltage reference, widely used in power management and regulation applications due to its precision and versatility. Texas Instruments is known for its commitment to quality and technological advancement, making it a key player in the electronics sector.

Application

The TL431BMFDT is a versatile precision voltage reference and adjustable Shunt Regulator commonly used in power supplies, voltage regulation circuits, and feedback control systems. It finds application in linear power supplies, switching power supplies, battery chargers, and over-voltage protection circuits. Additionally, it is utilized in instrumentation, consumer electronics, and automotive applications for precise voltage regulation and monitoring.

Equivalent

The TL431BMFDT is a precision voltage reference and adjustable shunt regulator. Equivalent products include:
1. LM431 (various packages)
2. TL431 (similar variants with different tolerances)
3. TLV431 (lower voltage reference)
4. LM4040 (precision voltage reference)
5. MAX6319 (adjustable voltage reference)
Check specifications for compatibility in your application.