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AN78L12M
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Regulator
- Characteristics: Low dropout voltage, high output current capability
- Package: TO-252, TO-220, SOT-89
- Essence: Linear voltage regulator
- Packaging/Quantity: Tape and reel, 2500 units per reel
Specifications
- Input Voltage Range: 14V to 35V
- Output Voltage: 12V
- Output Current: Up to 100mA
- Dropout Voltage: 2V (maximum)
- Line Regulation: 0.2% (typical)
- Load Regulation: 0.4% (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The AN78L12M has three pins: 1. Input (VIN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (VOUT): Provides the regulated output voltage.
Functional Features
- Low dropout voltage: Allows operation with a small voltage difference between the input and output.
- High output current capability: Can deliver up to 100mA of current to power various components.
- Thermal shutdown protection: Prevents damage due to excessive temperature.
- Short-circuit protection: Safeguards the IC and connected devices in case of a short circuit.
Advantages and Disadvantages
Advantages: - Compact size and easy to integrate into electronic circuits. - Stable and reliable voltage regulation. - Wide operating temperature range. - Protection features enhance device longevity.
Disadvantages: - Limited output current capability compared to higher-rated regulators. - Requires external capacitors for stability.
Working Principles
The AN78L12M is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the output voltage to a reference voltage and adjusting the pass transistor accordingly. The regulator maintains a constant output voltage by dissipating excess input voltage as heat.
Detailed Application Field Plans
The AN78L12M is commonly used in various electronic devices, including: 1. Power supplies for microcontrollers and other low-power digital circuits. 2. Battery-powered devices requiring a stable 12V supply. 3. Automotive applications, such as dashboard displays and lighting systems. 4. Industrial control systems and instrumentation. 5. Audio amplifiers and preamplifiers.
Detailed and Complete Alternative Models
- LM78L12: Similar specifications and pin configuration, available in different package options.
- MC78L12: Equivalent voltage regulator with comparable performance characteristics.
- UA78L12: Alternative option from another manufacturer, compatible with AN78L12M.
Note: This entry provides an overview of the AN78L12M voltage regulator. For detailed technical information, please refer to the datasheet provided by the manufacturer.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van AN78L12M in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of AN78L12M in technical solutions:
Q: What is AN78L12M? A: AN78L12M is a voltage regulator IC that provides a fixed output voltage of +12V.
Q: What is the input voltage range for AN78L12M? A: The input voltage range for AN78L12M is typically between +14V to +35V.
Q: What is the maximum output current of AN78L12M? A: The maximum output current of AN78L12M is 100mA.
Q: Can AN78L12M handle higher input voltages than +35V? A: No, AN78L12M is not designed to handle input voltages higher than +35V. It may get damaged if exposed to higher voltages.
Q: Is AN78L12M suitable for automotive applications? A: Yes, AN78L12M can be used in automotive applications as long as the input voltage does not exceed its specified range.
Q: Does AN78L12M require any external components for operation? A: Yes, AN78L12M requires input and output capacitors for stability and filtering purposes. Refer to the datasheet for recommended values.
Q: Can AN78L12M be used in battery-powered applications? A: Yes, AN78L12M can be used in battery-powered applications as long as the battery voltage is within its input voltage range.
Q: What is the thermal resistance of AN78L12M? A: The thermal resistance of AN78L12M is typically around 160°C/W, which determines its ability to dissipate heat.
Q: Can AN78L12M be used in high-temperature environments? A: AN78L12M has a maximum operating temperature of 125°C, so it should not be used in environments exceeding this temperature.
Q: Are there any alternatives to AN78L12M for +12V voltage regulation? A: Yes, there are other voltage regulator ICs available in the market that provide a fixed output voltage of +12V. Some popular alternatives include LM7812 and UA7812.
Please note that these answers are general and may vary depending on the specific datasheet and application requirements.