4 Pieces SW-520D IC Integrated Circuits

Description

Tutorial: How to Use 4 Pieces of SW-520D IC Integrated Circuits

The SW-520D is a power IC used for load management in electronic protection applications. Ideal for beginners and intermediates working on electronics and Arduino projects.

What you need

• 4 pieces SW-520D IC
• Arduino UNO or compatible
• 10kΩ Resistor
• Multimeter

Steps

1. 1. Check the datasheet for the specifications of the SW-520D.
2. 2. Connect the Arduino to the computer for code upload.
3. 3. Connect the SW-520D to pin 5 of the Arduino via a 10kΩ resistor.
4. 4. Verify the correct polarity of the pins.
5. 5. Connect the multimeter in current measurement mode.
6. 6. Connect the output of the SW-520D to the multimeter.
7. 7. Load the example code onto the Arduino.
8. 8. Verify the current passing through the SW-520D.

Example code

```void loop(){}

Mini project

Create a simple protection circuit for a relay using the SW-520D and a 12V relay.

Common mistakes

• Connect the SW-520D without resistor.
• Omit the verification of correct polarity.
• Do not upload the Arduino code before testing.
• Connect the SW-520D directly to a power supply without a resistor.

Recommended accessories

• 12V relay
• 12V power supply
• Connection cable
• 2×20 pin header

Frequently asked questions

Which specifications to check on the datasheet?
Check the maximum current and output voltage.

Can I use an Arduino nano?
Yes, but make sure the pin used supports the required current.

How long does the demo project take?
30 minutes.

Can the SW-520D handle continuous current?
Check the datasheet for the continuous current specification.