ZHT431C02STZ

Product Overview

Category

ZHT431C02STZ belongs to the category of voltage references.

Use

It is primarily used as a precision shunt regulator in various electronic circuits.

Characteristics

• Provides a stable output voltage reference.
• Offers high accuracy and low temperature coefficient.
• Operates over a wide range of input voltages.
• Can be used in both positive and negative supply applications.

Package

ZHT431C02STZ is available in a small surface-mount SOT-23 package.

Essence

The essence of ZHT431C02STZ lies in its ability to maintain a constant voltage reference, ensuring accurate and reliable performance in electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 3000 units per reel.

Specifications

• Output Voltage Range: 1.24V to 16V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.5V to 36V
• Quiescent Current: 1mA (typical)

Detailed Pin Configuration

ZHT431C02STZ has three pins:

1. ADJ: Adjust pin for setting the desired output voltage.
2. VOUT: Output pin providing the stable voltage reference.
3. VIN: Input pin connected to the power supply.

Functional Features

• Precise voltage regulation.
• Low dropout voltage.
• Current limiting and thermal shutdown protection.
• Adjustable output voltage through the ADJ pin.

Advantages and Disadvantages

Advantages

• High accuracy and stability.
• Wide operating voltage range.
• Small form factor.
• Easy to use and integrate into circuits.
• Cost-effective solution.

Disadvantages

• Limited output current capability.
• Requires external components for proper operation.
• Sensitivity to input voltage fluctuations.

Working Principles

ZHT431C02STZ operates based on the principle of a shunt regulator. It compares the reference voltage at the ADJ pin with the voltage across a precision resistor connected between the VOUT and ADJ pins. By adjusting the resistance, the output voltage can be set to the desired value. The internal circuitry ensures that the output voltage remains constant despite changes in the input voltage or load conditions.

Detailed Application Field Plans

ZHT431C02STZ finds applications in various electronic systems, including:

1. Power supplies: Provides stable voltage references for power supply circuits.
2. Battery management: Ensures accurate voltage monitoring and regulation in battery charging/discharging circuits.
3. Instrumentation: Used as a voltage reference in measurement and control systems.
4. Audio amplifiers: Maintains precise biasing voltages for audio amplifier circuits.
5. Automotive electronics: Provides reliable voltage references in automotive applications.

Detailed and Complete Alternative Models

Some alternative models to ZHT431C02STZ include:

1. TL431: Widely used adjustable precision shunt regulators.
2. LM4040: Precision micropower shunt voltage references.
3. REF3030: Low-power, high-precision voltage references.

These alternatives offer similar functionality and can be considered based on specific application requirements.

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