AS431HBZTR-G1

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Low voltage reference - Precision output voltage - Adjustable output voltage - Low temperature coefficient - Low quiescent current - Wide operating temperature range

Package: SOT-23-3

Essence: The AS431HBZTR-G1 is a precision voltage reference IC that provides a stable and accurate output voltage. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The AS431HBZTR-G1 is available in a SOT-23-3 package, which is a small surface-mount package. It is typically sold in reels or tape and reel packaging.

Specifications

• Output Voltage Range: 2.5V to 36V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Quiescent Current: 80µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AS431HBZTR-G1 has three pins:

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

Functional Features

• Adjustable Output Voltage: The AS431HBZTR-G1 allows for adjusting the output voltage within the specified range.
• Low Temperature Coefficient: The IC exhibits a low temperature coefficient, ensuring stability over a wide temperature range.
• Low Quiescent Current: The device consumes minimal current when not actively providing a reference voltage, making it suitable for low-power applications.
• Wide Operating Temperature Range: The AS431HBZTR-G1 can operate reliably in extreme temperature conditions.

Advantages and Disadvantages

Advantages: - Precise and stable output voltage - Adjustable output voltage - Low temperature coefficient - Low quiescent current consumption - Small package size

Disadvantages: - Limited output voltage range (2.5V to 36V) - Requires external components for proper operation

Working Principles

The AS431HBZTR-G1 is based on the principle of a shunt regulator. It compares the reference voltage at the REF pin with an internal voltage reference, and adjusts the current flowing through the device to maintain a constant output voltage. By adjusting the resistance connected to the REF pin, the output voltage can be set within the specified range.

Detailed Application Field Plans

The AS431HBZTR-G1 finds applications in various electronic systems where a stable and accurate voltage reference is required. Some common application areas include:

1. Power Supply Regulation: The IC can be used as a voltage reference in power supply circuits to ensure stable and precise output voltages.
2. Analog-to-Digital Converters (ADCs): The AS431HBZTR-G1 can provide a stable reference voltage for ADCs, ensuring accurate conversion of analog signals.
3. Sensor Calibration: In sensor-based systems, the IC can be used to calibrate and compensate for variations in sensor outputs due to temperature changes.
4. Battery Management Systems: The AS431HBZTR-G1 can be employed in battery management systems to monitor and regulate battery charging and discharging voltages.

Detailed and Complete Alternative Models

Some alternative models to the AS431HBZTR-G1 that offer similar functionality are:

1. TL431: A widely used adjustable precision shunt regulator with comparable specifications.
2. LM4040: A precision voltage reference IC available in various output voltage options.
3. LT1009: A low dropout voltage reference with excellent temperature stability.

These alternative models can be considered based on specific application requirements and availability.

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