AZ494AUP-E1

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Overcurrent and thermal protection - Wide input voltage range

Package: SOP-8 (Small Outline Package)

Essence: The AZ494AUP-E1 is a voltage regulator IC that provides a stable output voltage regardless of variations in the input voltage. It is commonly used in electronic devices to ensure a consistent power supply.

Packaging/Quantity: The AZ494AUP-E1 is typically sold in reels, with each reel containing 2500 units.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Dropout Voltage: 1.3V (typical)
• Output Current: Up to 5A
• Quiescent Current: 10mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AZ494AUP-E1 has 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ 6 │ ├───┼───┤ │ 7 │ 8 │ └───┴───┘

1. Feedback (FB) - Connects to an external resistor divider network to set the desired output voltage.
2. Ground (GND) - Common ground reference for the IC.
3. Error Amplifier Output (EAOUT) - Output of the internal error amplifier.
4. Error Amplifier Inverting Input (EAINV) - Inverting input of the internal error amplifier.
5. Error Amplifier Non-Inverting Input (EANON) - Non-inverting input of the internal error amplifier.
6. Voltage Reference (VREF) - Provides a stable reference voltage for the error amplifier.
7. Output (OUT) - Regulated output voltage.
8. Input (IN) - Input voltage.

Functional Features

• Low Dropout Voltage: The AZ494AUP-E1 has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 5A, this IC can power a wide range of electronic devices.
• Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider network connected to the feedback pin.
• Overcurrent and Thermal Protection: The IC incorporates protection features to prevent damage from excessive current or temperature.
• Wide Input Voltage Range: The AZ494AUP-E1 can operate with input voltages ranging from 4.5V to 40V, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - Stable output voltage - High output current capability - Adjustable output voltage - Overcurrent and thermal protection - Wide input voltage range

Disadvantages: - Requires external components for proper operation - Limited output voltage range compared to some other voltage regulators

Working Principles

The AZ494AUP-E1 operates as a linear voltage regulator. It uses an internal error amplifier to compare the feedback voltage (set by the external resistor divider network) with a stable reference voltage. The error amplifier adjusts the pass transistor to maintain a constant output voltage, compensating for variations in the input voltage.

Detailed Application Field Plans

The AZ494AUP-E1 is commonly used in various electronic devices and applications, including: - Power supplies - Battery chargers - Automotive electronics - Industrial control systems - Audio amplifiers - LED lighting

Detailed and Complete Alternative Models

Some alternative models to the AZ494AUP-E1 include: - LM317: Adjustable voltage regulator with similar features. - LM7805: Fixed 5V voltage regulator. - LT1083: High current adjustable voltage regulator. - LM1117: Low dropout voltage regulator.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific requirements.

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