L7812CV

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L7812CV

IC REG LINEAR 12V 1.5A TO220AB

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Bảo hành 365 ngày

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Thông số kỹ thuật

Package Tube
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 35V
Voltage-Output(Min/Fixed) 12V
VoltageDropout(Max) 2V @ 1A (Typ)
Current-Output 1.5A
Current-Quiescent(Iq) 8 mA
PSRR 55dB (120Hz)
ProtectionFeatures Over Temperature, Short Circuit
OperatingTemperature 0°C ~ 125°C
MountingType Through Hole
Package/Case TO-220-3

Tổng quan

Description

The L7812CV is a voltage regulator integrated circuit (IC) designed to provide a stable output voltage of 12 volts from a higher input voltage. It is part of the 78xx series of linear voltage regulators, commonly used in various electronic applications to ensure a consistent power supply. The L7812CV is capable of delivering an output current up to 1.5 amperes.
This regulator features built-in protection mechanisms, such as thermal shutdown, short-circuit protection, and safe operating area protection, enhancing its reliability and durability. It typically requires input and output capacitors to stabilize the voltage and improve transient response. The device is housed in a TO-220 package, which allows for easy mounting and efficient heat dissipation using a heat sink if necessary.
Common applications for the L7812CV include power supplies for electronic circuits, microcontroller projects, and any scenario where a steady 12V power source is needed. Its simplicity, low cost, and robustness make it a popular choice among hobbyists and professionals alike.

Features

The L7812CV is a three-terminal positive voltage regulator with a fixed output voltage of 12V. It is part of the 78xx series of voltage regulators, which are widely used for providing a stable output voltage. Key features include:
1. Output Voltage: Fixed at 12V.
2. Output Current: Can deliver up to 1.5A, suitable for medium power applications.
3. Input Voltage: Requires an input between approximately 14.5V to 35V.
4. Thermal Overload Protection: Features built-in protection to prevent overheating.
5. Short Circuit Protection: Comes with internal current limiting to prevent damage during short circuit conditions.
6. Package Type: Typically available in a TO-220 package, which aids in heat dissipation.
7. Dropout Voltage: Generally around 2V, meaning the input voltage must be at least 14V for a stable 12V output.
8. Temperature Range: Operates efficiently within a wide temperature range, typically -40°C to +125°C.
These features make the L7812CV a reliable choice for various applications, including power supplies, battery chargers, and other electronic circuits requiring a stable 12V output.

Package

The L7812CV is a voltage regulator in a TO-220 package. This package type includes a metal tab for heat dissipation and typically has three pins: input, ground, and output. The TO-220 package is commonly used for power semiconductor devices due to its ability to handle moderate power levels while allowing for easy heat sinking.

Pinout

The L7812CV is a voltage regulator in the TO-220 package, and it typically features three pins. Its primary function is to provide a stable +12V output with a maximum current of 1.5A. Here are the pin details:
1. Pin 1 (Input): Accepts an unregulated input voltage, typically between 14.5V to 35V.
2. Pin 2 (Ground): Connected to the ground/common of both input and output.
3. Pin 3 (Output): Provides a regulated +12V output.
The L7812CV is commonly used in power supply circuits to maintain a constant 12V output regardless of variations in input voltage or load conditions, within its specified limits. It's equipped with built-in protection features like thermal shutdown and current limiting.

Manufacturer

The L7812CV is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products used in various electronic applications. The company is known for its innovation in integrated circuits and semiconductor solutions, serving industries like automotive, industrial, personal electronics, and more. STMicroelectronics is headquartered in Geneva, Switzerland, and operates globally, supplying components essential for modern electronic devices and systems.

Application

The L7812CV is a linear voltage regulator used in various applications requiring a steady 12V output from a higher voltage input. Key application areas include power supply circuits for electronic devices, voltage regulation in automotive systems, industrial equipment, and consumer electronics. It is also used in DIY electronics projects and embedded systems to ensure stable voltage for microcontrollers and other components. Its features like thermal overload protection and short-circuit protection make it suitable for reliable and safe power management.

Equivalent

Equivalent products to the L7812CV voltage regulator include the LM7812, KA7812, MC7812, and UA7812, among others. These are all 12V fixed voltage regulators with similar pin configurations and electrical characteristics, widely used in electronic circuits for providing a stable 12V output. Always check the datasheets to confirm compatibility regarding current rating, thermal performance, and package type.

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