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SG7912K-JAN
Product Overview
SG7912K-JAN belongs to the category of voltage regulators. It is commonly used to regulate voltage in electronic circuits, providing a stable output voltage despite fluctuations in input voltage. The characteristics of SG7912K-JAN include its compact size, high efficiency, and low dropout voltage. It is typically packaged in a TO-220 form factor and is available in various quantities per package.
Specifications
- Input Voltage Range: 14V to 35V
- Output Voltage: -12V
- Maximum Output Current: 1.5A
- Dropout Voltage: 2V
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The SG7912K-JAN has three pins: 1. Input (Vin) 2. Ground (GND) 3. Output (Vout)
Functional Features
- High Efficiency: SG7912K-JAN offers high efficiency, minimizing power loss during voltage regulation.
- Low Dropout Voltage: The regulator maintains a stable output voltage even when the input voltage is close to the output voltage.
- Overcurrent Protection: It includes built-in protection against excessive current flow.
Advantages and Disadvantages
Advantages
- Compact Size: Suitable for applications with limited space.
- Stable Output: Provides a consistent output voltage under varying input conditions.
- Overcurrent Protection: Safeguards the circuit from damage due to excessive current.
Disadvantages
- Heat Dissipation: May require additional heat sinks for high-power applications.
- Limited Output Current: Not suitable for high-current applications.
Working Principles
SG7912K-JAN operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant output voltage. When the input voltage fluctuates, the regulator adjusts the pass transistor to ensure a stable output voltage.
Detailed Application Field Plans
SG7912K-JAN is commonly used in various electronic devices, including: - Audio Amplifiers - Instrumentation Systems - Industrial Control Systems - Power Supplies
Detailed and Complete Alternative Models
Some alternative models to SG7912K-JAN include: - LM7912 - UA7912 - L7912CV
In conclusion, SG7912K-JAN is a reliable voltage regulator with high efficiency and stable output characteristics, making it suitable for a wide range of electronic applications.
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What is SG7912K-JAN?
- SG7912K-JAN is a voltage regulator IC designed to provide a regulated 12V output from an unregulated DC input.
What is the input voltage range for SG7912K-JAN?
- The input voltage range for SG7912K-JAN is typically between 14V and 35V.
What is the maximum output current of SG7912K-JAN?
- The maximum output current of SG7912K-JAN is around 1.5A.
What are the typical applications of SG7912K-JAN?
- SG7912K-JAN is commonly used in various electronic devices and circuits where a stable 12V power supply is required, such as in audio amplifiers, industrial control systems, and automotive electronics.
Is a heat sink required for SG7912K-JAN?
- Yes, a heat sink is recommended for SG7912K-JAN, especially when operating at higher input voltages or when drawing close to the maximum output current.
What are the key features of SG7912K-JAN?
- Some key features of SG7912K-JAN include overcurrent protection, thermal shutdown, and high ripple rejection.
Can SG7912K-JAN be used in parallel to increase the output current?
- Yes, SG7912K-JAN can be used in parallel to increase the output current while ensuring proper thermal management and current sharing among the regulators.
What are the typical dropout voltage and line regulation of SG7912K-JAN?
- The typical dropout voltage is around 2V, and the line regulation is typically 0.07% per volt change in input voltage.
Does SG7912K-JAN require any external components for operation?
- SG7912K-JAN requires input and output capacitors for stability and filtering, and it is recommended to follow the manufacturer's application notes for proper circuit design.
Where can I find the detailed datasheet and application notes for SG7912K-JAN?
- The detailed datasheet and application notes for SG7912K-JAN can be found on the manufacturer's website or through authorized distributors.