ZR431LF01TC

Product Overview

Category

The ZR431LF01TC 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

Package

The ZR431LF01TC is available in a small surface-mount package.

Essence

The essence of the ZR431LF01TC lies in its ability to provide a stable reference voltage for various applications.

Packaging/Quantity

The ZR431LF01TC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Reference Voltage Range: 2.5V to 36V
• Output Voltage Tolerance: ±1%
• Temperature Coefficient: 50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 60µA

Detailed Pin Configuration

The ZR431LF01TC has three pins:

1. Vref: This pin is connected to the external resistor divider network to set the desired output voltage.
2. Anode: This pin is connected to the positive supply voltage.
3. Cathode: This pin is connected to the ground or negative supply voltage.

Functional Features

• Precise voltage regulation: The ZR431LF01TC ensures a stable output voltage regardless of input variations.
• Adjustable output voltage: By selecting appropriate resistors for the resistor divider network, the output voltage can be adjusted.
• Low output impedance: The device provides a low output impedance, allowing it to drive loads efficiently.
• Overcurrent protection: The ZR431LF01TC incorporates overcurrent protection to safeguard against excessive current flow.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable performance.
• Wide operating voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility.
• Low temperature coefficient minimizes variations with temperature.

Disadvantages

• Limited output current capability may restrict certain high-power applications.
• Surface-mount package may require specialized equipment for soldering.

Working Principles

The ZR431LF01TC operates based on the principle of a shunt regulator. It compares the reference voltage (Vref) with the voltage across the resistor divider network to generate a feedback signal. This feedback signal is used to control the current flowing through the device, thereby regulating the output voltage.

Detailed Application Field Plans

The ZR431LF01TC finds application in various fields, including:

1. Power supply units: It can be used as a voltage reference in power supply circuits to maintain stable output voltages.
2. Industrial control systems: The ZR431LF01TC ensures precise voltage regulation in industrial control systems, enhancing their reliability.
3. Automotive electronics: It is employed in automotive electronics to provide accurate voltage references for critical components.
4. Battery charging circuits: The device can be utilized in battery charging circuits to maintain consistent charging voltages.

Detailed and Complete Alternative Models

1. TL431: A widely used alternative with similar functionality and characteristics.
2. LM4040: Another popular voltage reference offering high precision and stability.
3. REF3030: An adjustable voltage reference with low quiescent current and excellent line regulation.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

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