MC7908CTG
Product Overview
Category
MC7908CTG belongs to the category of voltage regulators.
Use
It is primarily used for regulating and stabilizing voltage in electronic circuits.
Characteristics
- Input Voltage Range: -35V to -10V
- Output Voltage: -8V
- Maximum Output Current: 1A
- Package Type: TO-220
- Operating Temperature Range: -40°C to +125°C
Package and Quantity
MC7908CTG is available in a TO-220 package. It is typically sold in packs of 10.
Specifications
- Input Voltage Range: -35V to -10V
- Output Voltage: -8V
- Output Current: 1A
- Dropout Voltage: 2V (maximum)
- Line Regulation: 0.07% (typical)
- Load Regulation: 0.1% (typical)
- Ripple Rejection Ratio: 62dB (typical)
- Quiescent Current: 6mA (typical)
Pin Configuration
The MC7908CTG has three pins: 1. Input Pin (Pin 1): Connects to the input voltage source. 2. Ground Pin (Pin 2): Connected to the ground or common reference point. 3. Output Pin (Pin 3): Provides the regulated output voltage.
Functional Features
- Regulates and stabilizes the output voltage.
- Protects the circuit from voltage fluctuations.
- Provides short-circuit protection.
- Thermal shutdown feature prevents overheating.
Advantages
- Wide input voltage range allows for versatile applications.
- High ripple rejection ratio ensures a stable output.
- Short-circuit protection enhances circuit safety.
- Compact TO-220 package facilitates easy integration.
Disadvantages
- Dropout voltage of 2V may limit its use in low voltage applications.
- Quiescent current of 6mA may impact power efficiency in battery-powered devices.
Working Principles
MC7908CTG is a negative voltage regulator that uses a series pass transistor to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to regulate the output voltage.
Application Field Plans
MC7908CTG finds applications in various electronic circuits where a stable and regulated negative voltage is required. Some common application fields include: - Power supplies for audio amplifiers - Industrial control systems - Automotive electronics - Telecommunications equipment
Alternative Models
Other alternative models that can be used as substitutes for MC7908CTG include: - LM7908CTG - UA7908CTG - L7908CTG
These models offer similar specifications and functionality, providing flexibility in choosing the most suitable option for specific applications.
In conclusion, MC7908CTG is a voltage regulator widely used in electronic circuits to stabilize and regulate negative voltages. Its versatile applications, compact package, and protective features make it a popular choice among engineers and designers in various industries.
প্রযুক্তিগত সমাধানে MC7908CTG এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন
Sure! Here are 10 common questions and answers related to the application of MC7908CTG in technical solutions:
Q: What is MC7908CTG? A: MC7908CTG is a voltage regulator integrated circuit (IC) that provides a fixed negative output voltage of -8V.
Q: What is the input voltage range for MC7908CTG? A: The input voltage range for MC7908CTG is typically between -10V and -35V.
Q: What is the output current capability of MC7908CTG? A: MC7908CTG can provide an output current of up to 1A.
Q: How does MC7908CTG regulate the output voltage? A: MC7908CTG uses a series pass transistor and feedback mechanism to maintain a constant -8V output voltage.
Q: Can MC7908CTG handle high temperatures? A: Yes, MC7908CTG is designed to operate at elevated temperatures and has a maximum operating temperature of 125°C.
Q: Is MC7908CTG suitable for automotive applications? A: Yes, MC7908CTG is commonly used in automotive applications where a regulated -8V supply is required.
Q: Does MC7908CTG require any external components for operation? A: Yes, MC7908CTG requires input and output capacitors for stability and proper operation.
Q: Can MC7908CTG be used in parallel to increase the output current? A: No, MC7908CTG is not designed for parallel operation. Using multiple regulators in parallel may cause instability.
Q: What is the dropout voltage of MC7908CTG? A: The dropout voltage of MC7908CTG is typically around 2V, meaning the input voltage must be at least 2V higher than the desired output voltage.
Q: Are there any recommended heat dissipation techniques for MC7908CTG? A: Yes, MC7908CTG should be mounted on a heatsink or a PCB with sufficient copper area to dissipate the heat generated during operation.
Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.