L7805C-D2TR

Product Overview

Category: Voltage Regulator
Use: To regulate and stabilize voltage in electronic circuits
Characteristics:
- Fixed output voltage of 5V
- Maximum output current of 1.5A
- Low dropout voltage
- Thermal overload protection
Package: D2PAK (TO-263)
Essence: Integrated circuit voltage regulator
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

Input Voltage Range: 7V to 35V
Output Voltage: 5V ±4%
Dropout Voltage: 2V (typical)
Output Current: Up to 1.5A
Line Regulation: 0.04% (typical)
Load Regulation: 0.1% (typical)
Operating Temperature Range: -40°C to +125°C

Pin Configuration

The L7805C-D2TR has three pins:

Input (VIN): Connects to the input voltage source.
Ground (GND): Connected to the ground reference.
Output (VOUT): Provides the regulated output voltage.

Functional Features

Regulates input voltage to a stable 5V output.
Provides thermal overload protection.
Low dropout voltage ensures efficient regulation even with low input voltages.
Suitable for a wide range of applications due to its high output current capability.

Advantages

Easy to use and integrate into electronic circuits.
Provides a stable and reliable 5V output.
Offers thermal protection, preventing damage from overheating.
Can handle high output currents, making it suitable for various applications.

Disadvantages

Requires an input voltage higher than the desired output voltage.
Generates heat during operation, requiring proper heat dissipation measures.

Working Principles

The L7805C-D2TR is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable 5V output. The device also incorporates thermal overload protection to prevent damage from excessive heat.

Detailed Application Field Plans

The L7805C-D2TR is widely used in various electronic applications, including:

Power supplies for microcontrollers and other digital ICs.
Battery charging circuits.
Audio amplifiers and preamplifiers.
LED lighting systems.
Automotive electronics.
Industrial control systems.

Detailed and Complete Alternative Models

LM7805: Similar specifications and pin configuration, available in different packages.
MC7805: Equivalent performance, available in various package options.
UA7805: Comparable characteristics, suitable for similar applications.

These alternative models can be considered based on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L7805C-D2TR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of L7805C-D2TR in technical solutions:

Q: What is the L7805C-D2TR? A: The L7805C-D2TR is a voltage regulator IC that provides a fixed 5V output voltage.
Q: What is the maximum input voltage for the L7805C-D2TR? A: The maximum input voltage for the L7805C-D2TR is 35V.
Q: What is the maximum output current of the L7805C-D2TR? A: The maximum output current of the L7805C-D2TR is 1.5A.
Q: Can the L7805C-D2TR be used to regulate voltages other than 5V? A: No, the L7805C-D2TR is specifically designed to provide a fixed 5V output.
Q: Is it necessary to use a heatsink with the L7805C-D2TR? A: It depends on the power dissipation. If the power dissipation exceeds a certain limit, a heatsink may be required.
Q: Can the L7805C-D2TR handle reverse polarity protection? A: No, the L7805C-D2TR does not have built-in reverse polarity protection. External protection circuitry should be used if needed.
Q: Can the L7805C-D2TR be used in automotive applications? A: Yes, the L7805C-D2TR can be used in automotive applications as long as the operating conditions are within its specified range.
Q: Does the L7805C-D2TR require any external components for operation? A: Yes, the L7805C-D2TR requires input and output capacitors for stability. Refer to the datasheet for recommended values.
Q: Can multiple L7805C-D2TR regulators be connected in parallel to increase the output current? A: Yes, multiple L7805C-D2TR regulators can be connected in parallel to share the load and increase the output current capacity.
Q: What is the typical dropout voltage of the L7805C-D2TR? A: The typical dropout voltage of the L7805C-D2TR is around 2V, meaning the input voltage must be at least 2V higher than the desired output voltage for proper regulation.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with an expert when designing technical solutions.