Overview
The MC7812CT is a linear voltage regulator produced by ON Semiconductor. It is designed as a fixed-voltage regulator, providing a stable output voltage of 12 volts. This device is part of the 78XX series, known for its reliability and wide range of applications in power supply systems. The MC7812CT is housed in a TO-220 package, making it suitable for various electronic projects and industrial applications.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 11.5 | 12 | 12.5 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | 11.4 | 12 | 12.6 | Vdc |
| Maximum Output Current | 1 | A | ||
| Line Regulation (TJ = 25°C) | 48 | mV | ||
| Load Regulation (5.0 mA ≤ IO ≤ 1.5 A) | 240 | mV | ||
| Output Noise Voltage (10 Hz ≤ f ≤ 100 kHz) | 10 | μV/VO | ||
| Output Resistance (f = 1.0 kHz) | 1.1 | mΩ | ||
| Short Circuit Current Limit (TA = 25°C) | 0.2 | A | ||
| Average Temperature Coefficient of Output Voltage | -0.8 | mV/°C |
Key Features
- Fixed Output Voltage: Provides a stable output voltage of 12 volts.
- High Current Capability: Can supply up to 1 ampere of output current.
- Line and Load Regulation: Excellent line and load regulation ensures stable output voltage across various input and load conditions.
- Low Output Noise: Minimal output noise, making it suitable for sensitive electronic circuits.
- Short Circuit Protection: Built-in short circuit current limit to protect the device from overcurrent conditions.
- TO-220 Package: Standard TO-220 package for easy mounting and heat dissipation.
- RoHS Compliance: Compliant with EU directives 2011/65/EU and 2015/863, ensuring the absence of restricted substances.
Applications
- Power Supply Systems: Ideal for use in power supply units, voltage regulators, and DC-DC converters.
- Industrial Control Systems: Suitable for industrial control systems, automation, and robotics.
- Consumer Electronics: Used in various consumer electronic devices such as audio equipment, medical devices, and telecommunications equipment.
- Automotive Systems: Can be used in automotive systems requiring stable voltage regulation.
Q & A
- What is the output voltage of the MC7812CT?
The output voltage of the MC7812CT is 12 volts.
- What is the maximum output current of the MC7812CT?
The maximum output current of the MC7812CT is 1 ampere.
- What is the typical line regulation of the MC7812CT?
The typical line regulation of the MC7812CT is 48 mV.
- Does the MC7812CT have short circuit protection?
Yes, the MC7812CT has built-in short circuit current limit protection.
- What is the package type of the MC7812CT?
The MC7812CT is housed in a TO-220 package.
- Is the MC7812CT RoHS compliant?
Yes, the MC7812CT is RoHS compliant, adhering to EU directives 2011/65/EU and 2015/863.
- What are the typical operating temperatures for the MC7812CT?
The MC7812CT operates from 0°C to 125°C.
- How does the MC7812CT handle output noise?
The MC7812CT has minimal output noise, typically around 10 μV/VO.
- What is the output resistance of the MC7812CT at 1 kHz?
The output resistance of the MC7812CT at 1 kHz is typically 1.1 mΩ.
- What are some common applications of the MC7812CT?
The MC7812CT is commonly used in power supply systems, industrial control systems, consumer electronics, and automotive systems.
