TLV431ACDBZR

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage References
• Characteristics: Adjustable Precision Shunt Regulator
• Package: SOT-23, 3-Pin
• Essence: TLV431ACDBZR is a voltage reference IC that provides a stable output voltage with high precision. It is commonly used in various electronic circuits where accurate voltage references are required.
• Packaging/Quantity: TLV431ACDBZR is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Reference Voltage Range: 1.24V to 6V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +125°C
• Input Voltage Range: -0.3V to 18V
• Accuracy: ±1%
• Quiescent Current: 60µA

Pin Configuration

TLV431ACDBZR has a 3-pin SOT-23 package with the following pin configuration:

1. Anode (A): Connected to the input voltage source.
2. Cathode (C): Output pin providing the stable reference voltage.
3. Reference (R): Connected to an external resistor for adjusting the output voltage.

Functional Features

• Adjustable Output Voltage: TLV431ACDBZR allows precise adjustment of the output voltage within the specified range.
• Low Quiescent Current: The IC consumes minimal current when in operation, making it suitable for low-power applications.
• High Accuracy: With an accuracy of ±1%, TLV431ACDBZR provides reliable and consistent voltage references.
• Short Circuit Protection: The IC includes built-in protection against short circuits, ensuring the safety of the circuitry.

Advantages and Disadvantages

Advantages: - Precise and stable voltage reference - Adjustable output voltage - Low quiescent current consumption - Short circuit protection

Disadvantages: - Limited output current capacity (up to 100mA) - Requires an external resistor for voltage adjustment

Working Principles

TLV431ACDBZR operates as a shunt regulator, maintaining a constant voltage across the cathode and reference pins. By adjusting the external resistor connected to the reference pin, the output voltage can be precisely set within the specified range. The IC compares the reference voltage with the input voltage and regulates the current flow accordingly, ensuring a stable output voltage.

Detailed Application Field Plans

TLV431ACDBZR finds applications in various electronic circuits that require accurate voltage references. Some common application fields include:

1. Power Supply Regulation: TLV431ACDBZR can be used to provide a stable reference voltage for regulating power supplies in devices such as audio amplifiers, microcontrollers, and sensors.
2. Battery Charging: The IC can be employed in battery charging circuits to maintain a constant voltage during the charging process, preventing overcharging or undercharging.
3. Voltage Monitoring: TLV431ACDBZR is suitable for voltage monitoring applications, where it can be used to compare the input voltage with a reference voltage and trigger actions based on the comparison result.
4. Analog-to-Digital Conversion: In analog-to-digital converters, TLV431ACDBZR can serve as a precise voltage reference for accurate conversion of analog signals into digital values.

Detailed and Complete Alternative Models

Some alternative models to TLV431ACDBZR that offer similar functionality and characteristics are:

1. LM4040CIM3-5.0/NOPB: Precision Micropower Shunt Voltage Reference, SOT-23 package.
2. MAX6001EUR+T: Low-Power, Precision Series Voltage Reference, SOT-23 package.
3. REF3030AIDBZT: Micropower, Low Dropout, Low Power, 3-Terminal Adjustable Precision Voltage Reference, SOT-23 package.

These alternative models can be considered based on specific requirements and availability.

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