The model "K7805-500R3" appears to be a voltage regulator module . Based on the name, it likely refers to a DC-DC converter or a power module that is often used for providing a regulated 5V output from a higher input voltage, typically in power supply applications. It's commonly used in embedded systems, electronics, and circuits where stable voltage is required.
However, the exact brand, pin specifications, packaging, and function details would depend on the specific manufacturer's datasheet or product description for this module. Without access to a web search or specific datasheets for this exact part, I can give you a general overview of how the typical K7805 (and similar voltage regulator modules) is structured.
General Pinout and Specifications for K7805-500R3
Pin Number: Since this is a voltage regulator module, it typically will have a small number of pins. If you're referring to a typical "K7805" voltage regulator, these devices often have 3 pins (input, ground, and output).Pin Function Overview: Here's a breakdown of the common pin functions:
Pin Number Pin Name Function Description 1 Input The input voltage pin where the higher voltage is fed (e.g., 9V, 12V, 24V). 2 Ground The ground pin. All circuitry shares the common ground. 3 Output The output voltage pin providing the regulated 5V output.Pin Function Specifications:
Input Pin (Pin 1): This is where the unregulated DC input voltage is connected. It must be within a specified range, typically 7V to 36V. The input voltage should be higher than the desired output voltage (in this case, 5V).
Ground Pin (Pin 2): This is the common ground for the device and should be connected to the ground of the power source and any other circuits using the regulator.
Output Pin (Pin 3): This provides the regulated 5V DC output, ensuring that the voltage remains stable even with variations in input voltage.
FAQs on K7805-500R3:
Q: What is the input voltage range for the K7805-500R3? A: The input voltage range is typically between 7V to 36V DC.
Q: What is the output voltage of the K7805-500R3? A: The output voltage is a regulated 5V DC.
Q: Can I use the K7805-500R3 with a 12V input? A: Yes, the K7805-500R3 can be used with a 12V input, providing a stable 5V output.
Q: What is the maximum current output of the K7805-500R3? A: The K7805-500R3 typically supports up to 1A of output current, depending on the input voltage and the power dissipation.
Q: What is the thermal shutdown feature of the K7805-500R3? A: If the temperature of the K7805-500R3 exceeds a certain limit (typically 125°C), the module will shut down to prevent damage.
Q: What is the pinout for the K7805-500R3? A: The K7805-500R3 typically has three pins: Input (Pin 1), Ground (Pin 2), and Output (Pin 3).
Q: What is the efficiency of the K7805-500R3? A: The efficiency depends on the input and output voltage difference but generally ranges from 80% to 90%.
Q: Can I use the K7805-500R3 to power a microcontroller? A: Yes, the K7805-500R3 can provide a stable 5V supply, making it suitable for powering microcontrollers and other 5V logic circuits.
Q: Is heat sinking required for the K7805-500R3? A: If operating near maximum current levels, a heat sink may be required to dissipate excess heat.
Q: Can the K7805-500R3 work with an AC input? A: No, the K7805-500R3 is designed for DC input only.
Q: What is the packaging of the K7805-500R3? A: The K7805-500R3 is typically available in a compact, enclosed package, often with a small form factor like a TO-220 or a similar package type.
Q: What is the typical application of the K7805-500R3? A: It is used in circuits where a stable 5V output is needed, such as for powering sensors, microcontrollers, and other low-power devices.
Q: What is the power dissipation in the K7805-500R3? A: The power dissipation depends on the difference between input and output voltage. For example, with a 12V input and 5V output, the dissipation is about (12V - 5V) * current.
Q: Can the K7805-500R3 be used for charging applications? A: While the K7805-500R3 can supply 5V, it is not designed specifically for charging batteries. A dedicated charger circuit should be used for that purpose.
Q: Is there overcurrent protection in the K7805-500R3? A: Yes, the module typically includes overcurrent protection, which will shut down the output if the current exceeds a specified limit.
Q: How do I install the K7805-500R3 in a circuit? A: Simply connect the input pin to your unregulated DC voltage source, the ground pin to the common ground, and the output pin to the circuit that requires a 5V DC supply.
Q: Is the K7805-500R3 a linear or switching regulator? A: The K7805-500R3 is a linear regulator, meaning it dissipates excess power as heat rather than switching the power on and off.
Q: Can I use the K7805-500R3 to step down from a 24V source to 5V? A: Yes, as long as the current draw is within the module’s rating, it can step down from a 24V input to a 5V output.
Q: What should I do if the K7805-500R3 is overheating? A: Ensure that the current demand does not exceed the maximum rating, and consider adding a heat sink or improving ventilation.
Q: Can the K7805-500R3 be used in automotive applications? A: Yes, it can be used in automotive applications where a regulated 5V supply is needed from a higher DC source, such as 12V from a car battery.
This general outline covers the typical specifications, functions, and FAQ for a K7805-500R3 module. For exact, detailed specifications, it's important to refer to the datasheet of the manufacturer of this particular model.
