BA78M12FP-E2

Product Overview

Category

BA78M12FP-E2 belongs to the category of voltage regulators.

Use

It is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

• Input Voltage Range: 14V to 35V
• Output Voltage: +12V
• Maximum Output Current: 500mA
• Dropout Voltage: 2V (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-252-3 (DPAK)
• Essence: Linear voltage regulator

Packaging/Quantity

BA78M12FP-E2 is typically packaged in reels or tubes. The quantity per reel/tube varies depending on the manufacturer, but it is commonly available in quantities of 250 or 1000 units.

Specifications

• Input Voltage Range: 14V to 35V
• Output Voltage: +12V
• Output Current: Up to 500mA
• Dropout Voltage: 2V (typical)
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Ripple Rejection Ratio: 60dB (typical)
• Quiescent Current: 5mA (typical)
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes

Detailed Pin Configuration

BA78M12FP-E2 has three pins:

1. Input Pin (VIN): Connects to the input voltage source.
2. Ground Pin (GND): Connected to the ground reference.
3. Output Pin (VOUT): Provides the regulated output voltage.

Functional Features

• Regulates and stabilizes the output voltage.
• Provides protection against thermal shutdown and short circuits.
• Low dropout voltage ensures efficient operation even with low input voltages.
• High ripple rejection ratio minimizes noise in the output voltage.
• Compact TO-252-3 package allows for easy integration into electronic circuits.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Excellent line and load regulation ensures stable output voltage.
• Thermal shutdown and short circuit protection enhance reliability.
• Compact package size facilitates space-saving designs.

Disadvantages

• Limited maximum output current of 500mA may not be sufficient for high-power applications.
• Dropout voltage of 2V may result in higher power dissipation.

Working Principles

BA78M12FP-E2 is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a constant output voltage. The excess voltage is dissipated as heat, resulting in a dropout voltage.

Detailed Application Field Plans

BA78M12FP-E2 finds applications in various electronic devices and systems, including:

1. Power supplies for microcontrollers and digital circuits.
2. Automotive electronics.
3. Industrial control systems.
4. Audio amplifiers.
5. Battery charging circuits.
6. LED lighting systems.

Detailed and Complete Alternative Models

Some alternative models to BA78M12FP-E2 include:

1. LM7812: A popular 12V linear voltage regulator from Texas Instruments.
2. L78M12CV: 12V positive voltage regulator from STMicroelectronics.
3. UA7812CKCSE3: Fixed voltage regulator from Texas Instruments with a 12V output.

These alternatives offer similar functionality and can be used as replacements based on specific requirements.

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