AP431WG-7

Product Overview

Category

AP431WG-7 belongs to the category of voltage references.

Use

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

Characteristics

• Provides a stable and accurate voltage reference.
• Offers high precision and low temperature coefficient.
• Operates over a wide range of input voltages.
• Suitable for both linear and switching power supplies.

Package

AP431WG-7 is available in a TO-92 package, which is a small, three-lead plastic package.

Essence

The essence of AP431WG-7 lies in its ability to maintain a constant voltage reference regardless of changes in input voltage or load conditions.

Packaging/Quantity

AP431WG-7 is typically sold in reels containing a quantity of 2,500 units per reel.

Specifications

• Reference Voltage: 2.5V
• Operating Voltage Range: 2.5V to 36V
• Output Current: Up to 100mA
• Temperature Coefficient: ±0.5mV/°C
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

AP431WG-7 has three pins:

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

Functional Features

• Precise voltage regulation: AP431WG-7 ensures a constant output voltage even with varying input voltages and loads.
• Low dropout voltage: It operates efficiently with minimal voltage drop across the device.
• Short-circuit protection: The device is designed to withstand short-circuit conditions without damage.
• Adjustable output: The reference voltage can be adjusted using external resistors.

Advantages and Disadvantages

Advantages

• High precision and stability.
• Wide operating voltage range.
• Compact package size.
• Easy to use and integrate into various circuits.

Disadvantages

• Limited output current capacity.
• Requires external resistors for voltage adjustment.

Working Principles

AP431WG-7 operates based on the principle of a shunt regulator. It compares the reference voltage with the feedback voltage obtained from the output, adjusting the current flow through the device to maintain a constant output voltage.

Detailed Application Field Plans

AP431WG-7 finds applications in various electronic systems, including: - Voltage regulators in power supplies. - Battery charging circuits. - Audio amplifiers. - Instrumentation circuits. - Automotive electronics.

Detailed and Complete Alternative Models

Some alternative models similar to AP431WG-7 include: - TL431: A widely used adjustable precision shunt regulator. - LM4040: A precision voltage reference with fixed output voltages. - LT1009: A high-precision, low-dropout voltage reference.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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