ZR431LC02STZ

Product Overview

Category

The ZR431LC02STZ belongs to the category of voltage references.

Use

It is primarily used as a precision shunt regulator.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Wide operating voltage range
• Low output impedance
• Adjustable output voltage
• Low power consumption

Package

The ZR431LC02STZ is available in a small surface mount SOT-23 package.

Essence

The essence of ZR431LC02STZ lies in its ability to provide a stable and accurate reference voltage for various applications.

Packaging/Quantity

The ZR431LC02STZ is typically packaged in reels, with 3000 units per reel.

Specifications

• Reference Voltage: 2.5V
• Operating Voltage Range: 6V to 36V
• Output Current: 100mA
• Temperature Coefficient: ±50ppm/°C
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ZR431LC02STZ has three pins:

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

Functional Features

• Precision voltage reference: The ZR431LC02STZ provides a highly accurate and stable reference voltage, making it suitable for precise voltage regulation applications.
• Adjustable output voltage: The output voltage can be adjusted by connecting external resistors to the REF pin, allowing flexibility in system design.
• Low output impedance: The low output impedance ensures that the reference voltage remains stable even under varying load conditions.
• Wide operating voltage range: The ZR431LC02STZ can operate within a wide voltage range, making it compatible with various power supply systems.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable voltage regulation.
• Adjustable output voltage provides flexibility in system design.
• Low power consumption minimizes energy wastage.
• Small package size allows for space-saving integration.

Disadvantages

• Limited output current capability may not be suitable for high-power applications.
• Temperature coefficient could affect performance in extreme temperature conditions.

Working Principles

The ZR431LC02STZ operates based on the principle of a shunt regulator. It compares the reference voltage at the REF pin with the input voltage at the Anode pin. By adjusting the current flowing through the internal resistor, it maintains a stable output voltage at the Cathode pin.

Detailed Application Field Plans

The ZR431LC02STZ finds application in various fields, including:

1. Power supply units: It is used to provide precise voltage references for voltage regulators in power supply circuits.
2. Industrial control systems: The ZR431LC02STZ ensures accurate voltage regulation in control systems, improving overall system performance.
3. Automotive electronics: It is employed in automotive applications such as engine control units (ECUs) and electronic stability control (ESC) systems to maintain stable voltages.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the ZR431LC02STZ include:

1. TL431: A widely used adjustable precision shunt regulator.
2. LM4040: A series of precision voltage references available in various output voltages.
3. LT1236: A family of high-precision shunt voltage references with low temperature drift.

These alternative models can be considered based on specific requirements and compatibility with the target application.

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