Overview
The MC7812CDTG is a 12V, 1A positive linear voltage regulator produced by ON Semiconductor. This component is part of the MC78XX series, known for its reliability and performance in various electronic systems. The MC7812CDTG is packaged in a TO-220-3 format, making it suitable for through-hole mounting. It is designed to provide a stable 12V output voltage from an input voltage range of 19V to 35V, making it versatile for a wide range of applications.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 11.5 | 12 | 12.5 | Vdc |
| Input Voltage Range | 19 | - | 35 | Vdc |
| Output Current | - | - | 1.0 | A |
| Line Regulation (TJ = 25°C) | - | - | 120 | mV |
| Load Regulation (TJ = 25°C) | - | - | 25 | mV |
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | - | - | 2.0 | Vdc |
| Output Noise Voltage (TA = 25°C) | - | - | 10 | μV/√Hz |
| Output Resistance (f = 1.0 kHz) | - | - | 1.1 | mΩ |
| Short Circuit Current Limit (TA = 25°C) | - | - | 0.2 | A |
| Peak Output Current (TJ = 25°C) | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | - | - | -0.8 | mV/°C |
Key Features
- Stable Output Voltage: The MC7812CDTG provides a stable 12V output voltage with minimal variation over a wide range of input voltages and load conditions.
- High Current Capability: It can supply up to 1A of output current, making it suitable for applications requiring moderate to high current.
- Low Dropout Voltage: The regulator has a dropout voltage of 2.0V, ensuring efficient operation even when the input voltage is close to the output voltage.
- Thermal Protection: The device includes internal thermal shutdown to protect against overheating.
- Short Circuit Protection: It features a short circuit current limit to prevent damage from overcurrent conditions.
- Compact Packaging: The TO-220-3 package is compact and suitable for through-hole mounting, making it easy to integrate into various designs.
Applications
The MC7812CDTG is versatile and can be used in a variety of applications, including:
- Power Supplies: It is commonly used in linear power supplies to regulate the output voltage.
- Industrial Control Systems: Suitable for use in industrial control systems where stable voltage is crucial.
- Automotive Systems: Can be used in automotive systems due to its robustness and reliability.
- Consumer Electronics: Found in various consumer electronics requiring stable DC voltage.
- Medical Devices: Used in medical devices where precise voltage regulation is necessary.
Q & A
- What is the output voltage of the MC7812CDTG?
The output voltage of the MC7812CDTG is 12V. - What is the input voltage range for the MC7812CDTG?
The input voltage range for the MC7812CDTG is 19V to 35V. - What is the maximum output current of the MC7812CDTG?
The maximum output current of the MC7812CDTG is 1A. - What is the dropout voltage of the MC7812CDTG?
The dropout voltage of the MC7812CDTG is 2.0V. - Does the MC7812CDTG have thermal protection?
Yes, the MC7812CDTG includes internal thermal shutdown to protect against overheating. - What type of packaging does the MC7812CDTG use?
The MC7812CDTG is packaged in a TO-220-3 format. - What are some common applications of the MC7812CDTG?
The MC7812CDTG is commonly used in power supplies, industrial control systems, automotive systems, consumer electronics, and medical devices. - How does the MC7812CDTG protect against short circuits?
The MC7812CDTG features a short circuit current limit to prevent damage from overcurrent conditions. - What is the average temperature coefficient of output voltage for the MC7812CDTG?
The average temperature coefficient of output voltage for the MC7812CDTG is -0.8 mV/°C. - Is the MC7812CDTG suitable for high-temperature environments?
Yes, the MC7812CDTG can operate over a junction temperature range of -40°C to 125°C.
