TLV431BSNT1

Product Overview

• Category: Integrated Circuits
• Use: Voltage Reference
• Characteristics: Precision, Adjustable, Low Dropout Voltage
• Package: SOT-23 (Small Outline Transistor)
• Essence: TLV431BSNT1 is a precision adjustable shunt voltage reference that can be used in a wide range of applications requiring a stable voltage reference.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Reference Voltage Range: 1.24V to 16V
• Operating Temperature Range: -40°C to +125°C
• Output Current: Up to 100mA
• Initial Accuracy: ±1%
• Temperature Coefficient: 50ppm/°C

Pin Configuration

The TLV431BSNT1 package consists of three pins:

1. Anode (A): Connected to the anode of the internal zener diode.
2. Cathode (K): Connected to the cathode of the internal zener diode.
3. Adjust (ADJ): Used to adjust the output voltage by connecting an external resistor divider network.

Functional Features

• Precision Voltage Reference: The TLV431BSNT1 provides a highly accurate voltage reference with an initial accuracy of ±1%.
• Adjustable Output Voltage: By connecting an external resistor divider network to the ADJ pin, the output voltage can be adjusted within the specified range.
• Low Dropout Voltage: The TLV431BSNT1 has a low dropout voltage, allowing it to operate even when the input voltage is close to the output voltage.

Advantages and Disadvantages

Advantages: - High precision and stability - Adjustable output voltage - Low dropout voltage - Wide operating temperature range

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

Working Principles

The TLV431BSNT1 is based on the principle of a shunt voltage reference. It utilizes a precision internal zener diode that maintains a constant voltage across its terminals. By adjusting the voltage at the ADJ pin using an external resistor divider network, the output voltage can be set to the desired value.

Detailed Application Field Plans

The TLV431BSNT1 can be used in various applications, including but not limited to:

1. Voltage regulators and power supplies
2. Battery charging circuits
3. Precision measurement equipment
4. Audio amplifiers
5. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to TLV431BSNT1 that offer similar functionality are:

1. LM4040: Precision Micropower Shunt Voltage Reference
2. LT1236: Precision Reference with Integrated Resistor Network
3. MAX6001: Ultra-Low-Power, Precision Voltage Reference

These alternative models provide comparable precision, adjustable output voltage, and low dropout voltage characteristics.

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