MC7912ACTG
Product Overview
Category: Voltage Regulator
Use: To regulate voltage in electronic circuits
Characteristics: High precision, low dropout voltage, thermal shutdown protection
Package: TO-220
Essence: Regulates input voltage to a constant output voltage
Packaging/Quantity: Available in reels of 2000 units
Specifications
- Input Voltage: Up to -35V
- Output Voltage: -12V
- Dropout Voltage: 2V
- Maximum Output Current: 1.5A
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
- Input
- Ground
- Output
Functional Features
- Thermal Shutdown Protection
- Short Circuit Protection
- Internal Current Limiting
Advantages and Disadvantages
Advantages: - High precision regulation - Wide operating temperature range - Built-in protection features
Disadvantages: - Dropout voltage may limit use in low voltage applications - Requires heat sink for high current applications
Working Principles
The MC7912ACTG operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant output voltage.
Detailed Application Field Plans
This voltage regulator is commonly used in power supplies, audio amplifiers, and industrial control systems where a stable negative voltage supply is required.
Detailed and Complete Alternative Models
- LM7912CT: Similar characteristics and package
- UA7912CKC: Comparable voltage regulator with different package
This content provides a comprehensive overview of the MC7912ACTG voltage regulator, covering its specifications, features, advantages, and application field plans. It also includes alternative models for comparison.
기술 솔루션에 MC7912ACTG 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
What is the MC7912ACTG?
- The MC7912ACTG is a fixed negative voltage regulator that can provide a constant output voltage of -12V.
What are the typical applications of MC7912ACTG?
- It is commonly used in electronic circuits where a stable -12V power supply is required, such as in audio amplifiers, industrial control systems, and instrumentation.
What is the input voltage range for MC7912ACTG?
- The input voltage range for MC7912ACTG is typically between -14V to -35V.
What is the maximum output current of MC7912ACTG?
- The maximum output current of MC7912ACTG is 1A.
How does MC7912ACTG handle thermal considerations?
- The MC7912ACTG has built-in thermal shutdown and current limiting features to protect the device from overheating and overcurrent conditions.
What are the key features of MC7912ACTG?
- Some key features include fixed output voltage, thermal shutdown, short-circuit protection, and low dropout voltage.
Can MC7912ACTG be used in automotive applications?
- Yes, MC7912ACTG is suitable for use in automotive electronics, provided it meets the necessary specifications and standards.
What are the recommended input and output capacitors for MC7912ACTG?
- It is recommended to use input and output capacitors to improve stability and transient response. Typically, a 0.33μF capacitor is recommended for the input and a 0.1μF capacitor for the output.
What are the potential issues when using MC7912ACTG?
- Common issues may include improper heat sinking leading to thermal shutdown, inadequate input voltage causing dropout, or insufficient output capacitance affecting stability.
Where can I find the detailed datasheet for MC7912ACTG?
- The detailed datasheet for MC7912ACTG can be found on the manufacturer's website or through authorized distributors.