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SG7812AT-DESC
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: - Input Voltage Range: 14V to 35V - Output Voltage: 12V - Maximum Output Current: 1A - Package Type: TO-220 - Essence: Linear voltage regulator - Packaging/Quantity: Bulk packaging, 100 units per box
Specifications
- Input Voltage Range: 14V to 35V
- Output Voltage: 12V ± 4%
- Output Current: Up to 1A
- Dropout Voltage: 2V (typical)
- Line Regulation: 0.2% (typical)
- Load Regulation: 0.4% (typical)
- Operating Temperature Range: -40°C to +125°C
- Package Type: TO-220
- Pin Count: 3
Detailed Pin Configuration
The SG7812AT-DESC has three pins:
- Pin 1: Input (VIN) - Connects to the input voltage source.
- Pin 2: Ground (GND) - Connected to the ground reference.
- Pin 3: Output (VOUT) - Provides the regulated output voltage.
Functional Features
- Provides a stable and regulated 12V output voltage.
- Low dropout voltage ensures efficient operation even with low input voltages.
- Built-in thermal shutdown protection prevents overheating.
- Short-circuit protection safeguards the circuit from damage.
- Wide operating temperature range allows for use in various environments.
Advantages and Disadvantages
Advantages: - Simple and cost-effective solution for voltage regulation. - Reliable and stable output voltage. - Easy to integrate into electronic circuits. - Suitable for a wide range of applications.
Disadvantages: - Limited maximum output current (1A). - Requires external capacitors for stability.
Working Principles
The SG7812AT-DESC is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.
Detailed Application Field Plans
The SG7812AT-DESC is commonly used in various electronic devices and applications, including: - Power supplies - Battery chargers - Audio amplifiers - Industrial control systems - Automotive electronics
Detailed and Complete Alternative Models
Some alternative models to the SG7812AT-DESC include: - LM7812: A popular 12V linear voltage regulator from Texas Instruments. - MC7812: Another 12V linear voltage regulator from ON Semiconductor. - UA7812: A 12V linear voltage regulator from Fairchild Semiconductor.
These alternative models offer similar functionality and can be used as replacements for the SG7812AT-DESC in various applications.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SG7812AT-DESC en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of SG7812AT-DESC in technical solutions:
Q: What is SG7812AT-DESC? A: SG7812AT-DESC is a specific model of voltage regulator IC (integrated circuit) that provides a fixed output voltage of +12V.
Q: What are the typical applications of SG7812AT-DESC? A: SG7812AT-DESC is commonly used in various electronic devices and circuits where a stable +12V power supply is required, such as in audio amplifiers, power supplies, and industrial control systems.
Q: How does SG7812AT-DESC work? A: SG7812AT-DESC regulates the input voltage and provides a constant output voltage of +12V by using internal circuitry to adjust the current flow.
Q: What is the maximum input voltage supported by SG7812AT-DESC? A: The maximum input voltage that SG7812AT-DESC can handle is typically around 35V.
Q: Can SG7812AT-DESC handle higher currents? A: Yes, SG7812AT-DESC has a maximum output current rating of 1A, which means it can handle currents up to 1 ampere.
Q: Is SG7812AT-DESC suitable for both AC and DC input voltages? A: Yes, SG7812AT-DESC can accept both AC and DC input voltages, but it is important to ensure that the input voltage is within the specified range.
Q: Does SG7812AT-DESC require any external components for operation? A: Yes, SG7812AT-DESC requires a few external components like capacitors and resistors for stability and filtering purposes. The datasheet provides recommended values.
Q: Can SG7812AT-DESC handle voltage fluctuations or spikes? A: Yes, SG7812AT-DESC has built-in protection features to handle voltage fluctuations and spikes, but it is always advisable to use additional protection measures like surge suppressors if required.
Q: Is SG7812AT-DESC available in different package types? A: Yes, SG7812AT-DESC is available in various package types, such as TO-220, DPAK, and SOT-89, allowing flexibility in mounting options.
Q: Where can I find more detailed information about SG7812AT-DESC? A: You can refer to the datasheet provided by the manufacturer, which contains comprehensive information about the electrical characteristics, pin configuration, and application notes for SG7812AT-DESC.
Please note that the specific details and answers may vary depending on the manufacturer and version of the SG7812AT-DESC IC.