TLV431BQDBVTG4

Product Overview

• Category: Integrated Circuits
• Use: Voltage Reference
• Characteristics: Low-Voltage Adjustable Precision Shunt Regulator
• Package: SOT-23 (DBV)
• Essence: TLV431BQDBVTG4 is a voltage reference IC that provides a stable output voltage over a wide range of input voltages. It is commonly used in various electronic devices to regulate and stabilize voltage levels.
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Input Voltage Range: 1.24 V to 18 V
• Output Voltage Range: 1.24 V to 16 V
• Reference Voltage Accuracy: ±1%
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 60 µA typical
• Output Current: 100 mA maximum

Pin Configuration

The TLV431BQDBVTG4 has three pins:

1. Anode (A): Connected to the input voltage source.
2. Cathode (K): Connected to the ground or reference voltage.
3. Adjust (ADJ): Output pin for the regulated voltage.

Functional Features

• Adjustable Output Voltage: The TLV431BQDBVTG4 allows users to adjust the output voltage within the specified range using external resistors.
• Low Quiescent Current: With a typical quiescent current of only 60 µA, the TLV431BQDBVTG4 minimizes power consumption.
• High Accuracy: The reference voltage accuracy of ±1% ensures precise voltage regulation.
• Short Circuit Protection: The TLV431BQDBVTG4 includes built-in short circuit protection to prevent damage to the device and connected components.

Advantages

• Wide input voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility in different circuit designs.
• Low quiescent current minimizes power consumption.
• High accuracy ensures precise voltage regulation.
• Short circuit protection enhances device reliability.

Disadvantages

• Limited maximum output current of 100 mA may not be suitable for high-power applications.
• SOT-23 package may require additional thermal management for certain operating conditions.

Working Principles

The TLV431BQDBVTG4 operates as a shunt regulator, maintaining a stable output voltage by comparing the reference voltage (1.24 V) with the input voltage. When the input voltage exceeds the reference voltage, the TLV431BQDBVTG4 starts conducting current through the cathode pin, effectively reducing the output voltage. Conversely, when the input voltage drops below the reference voltage, the TLV431BQDBVTG4 reduces the current flow, allowing the output voltage to increase.

Application Field Plans

The TLV431BQDBVTG4 is widely used in various electronic devices and circuits that require precise voltage regulation. Some common application areas include:

1. Power Supplies: The TLV431BQDBVTG4 can be used in power supply circuits to stabilize the output voltage and protect sensitive components from voltage fluctuations.
2. Battery Charging Systems: It is utilized in battery charging circuits to maintain a constant voltage during the charging process, ensuring safe and efficient charging.
3. Voltage References: The TLV431BQDBVTG4 can serve as a stable voltage reference for analog-to-digital converters, sensors, and other precision measurement systems.
4. Audio Amplifiers: It can be employed in audio amplifier circuits to provide a stable bias voltage for improved audio quality.

Alternative Models

• TLV431AIDBZR
• TL431ACDBVR
• LM4040CIM3-2.5/NOPB
• LT1004CZ-1.2#PBF

These alternative models offer similar functionality and can be used as replacements for the TLV431BQDBVTG4 in various applications.

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