TLVH431BIDCKTG4

Product Overview

• Category: Integrated Circuits
• Use: Voltage Reference
• Characteristics: High Precision, Low Dropout Voltage
• Package: SOT-23 (Small Outline Transistor)
• Essence: Adjustable Precision Shunt Regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Reference Voltage Range: 1.24V to 16V
• Operating Temperature Range: -40°C to +125°C
• Output Current: 100mA
• Dropout Voltage: 0.6V (typical)

Detailed Pin Configuration

The TLVH431BIDCKTG4 has three pins:

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

Functional Features

• High Precision: The TLVH431BIDCKTG4 offers a high level of precision in maintaining the reference voltage.
• Low Dropout Voltage: It has a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the output voltage.
• Adjustable Output: The output voltage can be adjusted using external resistors, allowing for flexibility in various applications.
• Low Quiescent Current: The device operates with low quiescent current, minimizing power consumption.

Advantages and Disadvantages

Advantages

• High precision voltage reference
• Low dropout voltage for efficient regulation
• Adjustable output voltage
• Low quiescent current for reduced power consumption

Disadvantages

• Limited output current capacity (100mA)
• Requires external resistors for voltage adjustment

Working Principles

The TLVH431BIDCKTG4 is an adjustable precision shunt regulator. It operates by comparing the reference voltage at the Anode pin with a fraction of the output voltage at the Cathode pin. The Adjust pin provides the regulated voltage, which can be adjusted using external resistors.

When the output voltage exceeds the desired level, the TLVH431BIDCKTG4 reduces its current flow, effectively regulating the voltage. Conversely, if the output voltage drops below the desired level, the device increases its current flow to maintain the regulation.

Detailed Application Field Plans

The TLVH431BIDCKTG4 finds applications in various fields, including:

1. Power Supplies: It is commonly used in power supply circuits to provide stable and accurate reference voltages.
2. Battery Charging: The TLVH431BIDCKTG4 ensures precise voltage regulation during battery charging processes.
3. Voltage Monitoring: It can be employed in voltage monitoring circuits to detect overvoltage or undervoltage conditions.
4. Audio Amplifiers: The device helps maintain consistent voltage levels in audio amplifier circuits, ensuring high-quality sound reproduction.

Detailed and Complete Alternative Models

1. TL431: A popular alternative with similar functionality and specifications.
2. LM4040: Offers fixed voltage references with different precision options.
3. LT1634: Provides high-precision voltage references with low temperature drift.

These alternative models offer comparable features and can be considered based on specific application requirements.

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