Overview
The MC7905CT is a 3-terminal negative voltage regulator produced by Fairchild Semiconductor. This component is part of the MC79XX series, which includes several fixed output voltage options. The MC7905CT is specifically designed to provide a regulated -5V output with a maximum output current of 1A. It is packaged in a TO-220 package, making it suitable for a variety of applications requiring stable negative voltage regulation.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | MC7905CT |
| Maximum Output Current (I_O) | 1 A |
| Output Voltage Min (V_O) | -4.8 V |
| Output Voltage Max (V_O) | -5.2 V |
| Input Voltage Min (V_I) | -7 V |
| Input Voltage Max (V_I) | -20 V |
| Operating Temperature (T_opr) | 0°C to 125°C |
| Package Type | TO-220 |
| Packing Specification | Tube: 50pcs/Tube, 1K/Box, 5K/Ctn |
Key Features
- Current Limiting: The MC7905CT includes current limiting to protect the regulator from overcurrent conditions.
- Thermal Shutdown: This feature prevents the regulator from overheating by shutting down when the temperature exceeds a certain threshold.
- Safe-Area Compensation: Ensures stable operation by compensating for variations in the safe operating area.
- Fixed Output Voltage: Provides a stable -5V output voltage.
- High Current Capability: Can supply up to 1A of output current.
Applications
The MC7905CT is suitable for various applications requiring stable negative voltage regulation, including:
- Power Supplies: For generating negative voltages in power supply systems.
- Electronic Instruments: In measurement and control instruments that require stable negative voltages.
- Industrial Control Systems: For providing reliable negative voltage regulation in industrial control environments.
- Automotive Systems: In automotive electronics that need stable negative voltage supplies.
Q & A
- What is the maximum output current of the MC7905CT?
The maximum output current of the MC7905CT is 1A. - What is the output voltage range of the MC7905CT?
The output voltage range of the MC7905CT is -4.8V to -5.2V. - What is the input voltage range for the MC7905CT?
The input voltage range for the MC7905CT is -7V to -20V. - What package type is the MC7905CT available in?
The MC7905CT is available in a TO-220 package. - What are the key protection features of the MC7905CT?
The key protection features include current limiting, thermal shutdown, and safe-area compensation. - What is the operating temperature range of the MC7905CT?
The operating temperature range of the MC7905CT is 0°C to 125°C. - How is the MC7905CT typically packaged?
The MC7905CT is typically packaged in tubes of 50 pieces, boxes of 1000 pieces, and cartons of 5000 pieces. - What are some common applications of the MC7905CT?
Common applications include power supplies, electronic instruments, industrial control systems, and automotive systems. - Who is the manufacturer of the MC7905CT?
The MC7905CT is manufactured by Fairchild Semiconductor. - Where can I find detailed specifications for the MC7905CT?
Detailed specifications can be found in the datasheet available from the manufacturer's website or through electronic component distributors like Digi-Key, Mouser, etc.
