HV2904/AHA

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics:
  • High voltage capability
  • Low dropout voltage
  • Adjustable output voltage
  • Overcurrent protection
• Package: TO-220
• Essence: Voltage regulator IC
• Packaging/Quantity: 1 piece per package

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Dropout Voltage: 1.5V (typical)
• Maximum Output Current: 1.5A
• Quiescent Current: 5mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The HV2904/AHA IC has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. ADJ: Adjustable pin for setting the output voltage

Functional Features

• High voltage capability allows it to handle a wide range of input voltages.
• Low dropout voltage ensures efficient regulation even with small voltage differences between input and output.
• Adjustable output voltage provides flexibility in various applications.
• Overcurrent protection safeguards the circuit from excessive current flow.

Advantages

• Wide input voltage range makes it suitable for diverse power supply systems.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Adjustable output voltage allows customization according to specific requirements.
• Overcurrent protection enhances the reliability and safety of the circuit.

Disadvantages

• Limited maximum output current may restrict its use in high-power applications.
• Quiescent current consumption may be relatively higher compared to some other voltage regulators.

Working Principles

The HV2904/AHA is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output voltage.

Detailed Application Field Plans

The HV2904/AHA is commonly used in various applications, including:

1. Power supply circuits for industrial equipment
2. Automotive electronics
3. Battery charging systems
4. Audio amplifiers
5. LED lighting systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to HV2904/AHA are:

1. LM317: Adjustable voltage regulator with similar characteristics.
2. LT1084: High current, adjustable voltage regulator.
3. LM7805: Fixed 5V voltage regulator.

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

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