TLVH431AQDBZT

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: Precision, Low Dropout, Adjustable
• Package: SOT-23 (Small Outline Transistor)
• Essence: TLVH431AQDBZT is a precision voltage reference integrated circuit that provides a stable and accurate output voltage. It is commonly used in various electronic devices to ensure precise voltage regulation.
• Packaging/Quantity: 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 Vref + 6V
• Temperature Coefficient: ±50ppm/°C

Detailed Pin Configuration

The TLVH431AQDBZT has three pins:

1. Anode (A): Connected to the positive terminal of the power supply.
2. Cathode (K): Connected to the load or the circuit requiring a stable voltage reference.
3. Adjust (ADJ): Used to adjust the output voltage by connecting an external resistor.

Functional Features

• Precision Voltage Reference: TLVH431AQDBZT provides a highly accurate and stable output voltage, ensuring reliable performance in voltage regulation applications.
• Low Dropout Voltage: The device operates with a low dropout voltage, minimizing power dissipation and maximizing efficiency.
• Adjustable Output Voltage: By connecting an external resistor to the ADJ pin, the output voltage can be adjusted according to specific requirements.
• Short Circuit Protection: TLVH431AQDBZT incorporates built-in short circuit protection, safeguarding the device and the connected circuitry.

Advantages

• High precision and stability ensure accurate voltage regulation.
• Low dropout voltage minimizes power dissipation.
• Adjustable output voltage allows flexibility in various applications.
• Small package size (SOT-23) enables space-saving designs.
• Short circuit protection enhances device and circuit reliability.

Disadvantages

• Limited output current capacity (up to 100mA).
• Requires an external resistor for adjusting the output voltage.

Working Principles

The TLVH431AQDBZT is based on the principle of a shunt regulator. It compares the reference voltage with the voltage across the external resistor connected to the ADJ pin. By adjusting the resistance, the output voltage can be precisely regulated. The internal circuitry ensures stability and accuracy by compensating for temperature variations.

Detailed Application Field Plans

The TLVH431AQDBZT finds extensive use in various electronic devices and systems, including:

1. Power Supplies: Used as a voltage reference in linear and switching power supplies to maintain stable output voltages.
2. Battery Management Systems: Ensures accurate voltage monitoring and regulation in battery charging and discharging circuits.
3. Automotive Electronics: Provides precise voltage references for automotive control units, sensors, and lighting systems.
4. Industrial Control Systems: Used in PLCs (Programmable Logic Controllers), motor drives, and instrumentation equipment for reliable voltage regulation.
5. Consumer Electronics: Found in audio/video equipment, televisions, and computer peripherals to maintain stable operating voltages.

Detailed and Complete Alternative Models

1. LM4040: Precision Shunt Voltage Reference
2. LT1236: Micropower Precision Shunt Voltage Reference
3. MAX6126: Ultra-High-Precision Voltage Reference
4. REF5025: Low-Noise, Very Low Drift Precision Voltage Reference
5. ADR4550: Precision Micropower Voltage Reference

These alternative models offer similar functionality and can be considered as substitutes for the TLVH431AQDBZT in various applications.

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