MC7815BTG
15V 1A linear voltage regulators in TO-220 package
Manufacturer： ['rochester', 'onsemi', 'lrc']
series introduction
# Introduction to the MC7815BTG Product Series
## 1. Overview
The MC7815BTG product series belongs to the family of linear voltage regulators. These regulators are essential components in electronic circuits, providing a stable and regulated output voltage, which is crucial for the proper functioning of various electronic devices. The "MC7815BTG" designation indicates specific characteristics and performance parameters of the product, with "15" typically representing the output voltage of 15 volts.
## 2. Key Features
### 2.1 Fixed Output Voltage
The most prominent feature of the MC7815BTG series is its ability to provide a fixed output voltage of 15 volts. This fixed voltage output is highly stable, with low ripple and noise, ensuring that the connected electronic components receive a consistent power supply. This stability is vital for sensitive electronic circuits, such as those found in microcontrollers, sensors, and communication devices, as it helps prevent malfunctions and errors caused by voltage fluctuations.
### 2.2 High Current Capability
These voltage regulators are designed to handle relatively high output currents. Depending on the specific model within the series, they can typically supply currents in the range of several hundred milliamperes to over an ampere. This high - current capability makes them suitable for powering a wide range of loads, from small - scale integrated circuits to larger power - hungry components.
### 2.3 Thermal Protection
The MC7815BTG series is equipped with built - in thermal protection mechanisms. When the regulator's temperature rises above a certain threshold due to excessive power dissipation or high ambient temperatures, the thermal protection circuit kicks in. It reduces the output current or shuts down the regulator temporarily to prevent damage from overheating. This feature enhances the reliability and longevity of the regulator, especially in applications where the operating environment may be harsh or where the load demands are variable.
### 2.4 Short - Circuit Protection
Another important safety feature is short - circuit protection. In the event of a short - circuit at the output, the regulator automatically limits the current to a safe level. This prevents excessive current flow, which could otherwise damage the regulator itself, the power source, or other components in the circuit. The short - circuit protection ensures that the system remains safe and functional even under abnormal operating conditions.
### 2.5 Low Dropout Voltage
The dropout voltage of the MC7815BTG series is relatively low. Dropout voltage is the minimum difference between the input voltage and the output voltage required for the regulator to maintain a stable output. A low dropout voltage means that the regulator can operate effectively even when the input voltage is only slightly higher than the output voltage. This is particularly useful in battery - powered applications, where the battery voltage may decrease over time.
## 3. Applications
### 3.1 Power Supplies for Electronic Devices
The MC7815BTG series is commonly used in the design of power supplies for a wide variety of electronic devices. For example, in desktop computers, it can be used to provide a stable 15 - volt power supply for certain components such as fans, audio amplifiers, or some types of expansion cards. In industrial control systems, it can power sensors, actuators, and communication modules, ensuring reliable operation in a demanding environment.
### 3.2 Automotive Electronics
In the automotive industry, these voltage regulators find applications in various electronic systems. They can be used to power in - car entertainment systems, dashboard displays, and engine control units. The high - current capability and thermal protection features make them suitable for the harsh automotive environment, where temperature variations and electrical noise are common.
### 3.3 Battery - Powered Devices
For battery - powered devices, the low dropout voltage and stable output of the MC7815BTG series are highly
Images for reference
TO-220-3, TO-220AB
Image Preview
Image Preview