TLVH431IDBZR

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Low Output Voltage Tolerance: ±0.5% - Sink Current Capability: 1mA to 100mA - Wide Operating Voltage Range: 2.5V to 36V - Low Dynamic Output Impedance: 0.25Ω

Package: SOT-23 (Small Outline Transistor)

Essence: The TLVH431IDBZR is a precision shunt regulator that provides a stable reference voltage. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The TLVH431IDBZR is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Reference Voltage: Adjustable from 1.24V to 16V
• Operating Temperature Range: -40°C to +85°C
• Initial Accuracy: ±0.5%
• Temperature Stability: ±50ppm/°C
• Cathode Current Range: 1mA to 100mA
• Maximum Cathode Current: 150mA
• Quiescent Current: 1.5mA

Detailed Pin Configuration

The TLVH431IDBZR has three pins:

1. Anode (A): Connected to the positive supply voltage.
2. Cathode (K): Connected to the load or ground.
3. Reference (R): Provides the stable reference voltage.

Functional Features

• Voltage Regulation: The TLVH431IDBZR maintains a constant output voltage regardless of changes in input voltage or load conditions.
• Adjustable Output: The reference voltage can be adjusted using external resistors to meet specific circuit requirements.
• Low Output Voltage Tolerance: The device ensures a tight output voltage tolerance of ±0.5%, providing accurate voltage references.
• Sink Current Capability: It can sink current ranging from 1mA to 100mA, making it suitable for various applications.
• Wide Operating Voltage Range: The TLVH431IDBZR operates within a wide voltage range of 2.5V to 36V, accommodating different power supply voltages.
• Low Dynamic Output Impedance: With a low output impedance of 0.25Ω, the device maintains stability even with varying load conditions.

Advantages and Disadvantages

Advantages: - High precision and accuracy - Adjustable output voltage - Wide operating voltage range - Low dynamic output impedance - Sink current capability

Disadvantages: - Relatively high quiescent current compared to some other voltage references - Limited maximum cathode current

Working Principles

The TLVH431IDBZR is based on the principle of a shunt regulator. It uses a precision reference voltage and compares it with the voltage across a resistor divider network connected to the ADJ pin. By adjusting the resistance values in the divider network, the output voltage can be set to the desired level. The TLVH431IDBZR then regulates the voltage between the cathode and the reference pin to maintain a constant output voltage.

Detailed Application Field Plans

The TLVH431IDBZR finds applications in various fields, including:

1. Power Supplies: It is commonly used as a voltage reference in power supply circuits to ensure stable and accurate output voltages.
2. Battery Management Systems: The TLVH431IDBZR is utilized in battery management systems to provide precise voltage references for monitoring and control purposes.
3. Instrumentation: It is employed in instrumentation circuits where accurate voltage references are essential for measurement and calibration.
4. Automotive Electronics: The TLVH431IDBZR is suitable for automotive applications such as voltage regulators, sensor circuits, and control systems.
5. Audio Amplifiers: It can be used in audio amplifier circuits to provide a stable reference voltage for biasing and signal processing.

Detailed and Complete Alternative Models

1. LM4040: Precision Micropower Shunt Voltage Reference
2. LT1004: Precision Reference with Low Dropout Voltage
3. MAX6001: Ultra-Low-Power, Low-Dropout Voltage Reference
4. REF02: Precision Voltage Reference

These alternative models offer similar functionality and characteristics to the TLVH431IDBZR and can be considered as alternatives based on specific application requirements.

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