Configure TPS25740 For Only 5V In And Out

by ADMIN 42 views

Introduction

The TPS25740 is a highly integrated USB Power Switch with a built-in voltage regulator, designed to provide a simple and efficient solution for USB power delivery. In this article, we will focus on configuring the TPS25740 to provide only 5V in and out, suitable for charging a laptop and powering slave USB devices.

Understanding the TPS25740

The TPS25740 is a USB Power Switch that can be used to deliver power to devices connected to a USB port. It has a built-in voltage regulator that can be programmed to provide different output voltages, including 5V, 3.3V, and 1.8V. The device also has a built-in overcurrent protection (OCP) and overvoltage protection (OVP) to ensure safe and reliable operation.

Configuring the TPS25740 for 5V Output

To configure the TPS25740 for a 5V output, we need to set the output voltage to 5V and disable the other output voltages. This can be done by setting the VOUT pin to 5V and setting the VOUT2 pin to a low logic level (GND).

Step 1: Set the Output Voltage to 5V

To set the output voltage to 5V, we need to connect the VOUT pin to a 5V reference voltage. This can be done using a voltage divider or a separate 5V power source.

Step 2: Disable the Other Output Voltages

To disable the other output voltages, we need to set the VOUT2 pin to a low logic level (GND). This can be done by connecting the VOUT2 pin to the GND pin.

Step 3: Configure the OCP and OVP

To configure the OCP and OVP, we need to set the OCP threshold to 2A and the OVP threshold to 6V. This can be done by setting the OCP pin to a high logic level (VCC) and setting the OVP pin to a high logic level (VCC).

Step 4: Connect the USB C Port

To connect the USB C port, we need to connect the USB C connector to the TPS25740. This can be done by connecting the USB C connector to the USB C port on the TPS25740.

Step 5: Connect the Power Source

To connect the power source, we need to connect the power source to the TPS25740. This can be done by connecting the power source to the VIN pin on the TPS25740.

Step 6: Connect the Slave USB Devices

To connect the slave USB devices, we need to connect the slave USB devices to the TPS25740. This can be done by connecting the slave USB devices to the USB port on the TPS25740.

Example Circuit

Here is an example circuit that shows how to configure the TPS25740 for a 5V output:

+---------------+
|               |
|  Power Source  |
|  (5V)         |
+---------------+
|               |
|  TPS25740     |
|  ( = 5V)  |
|  (VOUT = 5V)  |
|  (VOUT2 = GND) |
|  (OCP = 2A)  |
|  (OVP = 6V)  |
+---------------+
|               |
|  USB C Port  |
|  (5V)         |
+---------------+
|               |
|  Slave USB  |
|  Devices     |
|  (5V)         |
+---------------+

Conclusion

In this article, we have shown how to configure the TPS25740 for a 5V output. We have also shown how to connect the USB C port, power source, and slave USB devices to the TPS25740. By following these steps, you can create a simple and efficient USB power delivery system using the TPS25740.

Troubleshooting

If you encounter any issues while configuring the TPS25740, here are some troubleshooting tips:

  • Check the output voltage to ensure it is set to 5V.
  • Check the OCP and OVP thresholds to ensure they are set correctly.
  • Check the USB C port to ensure it is connected correctly.
  • Check the power source to ensure it is connected correctly.
  • Check the slave USB devices to ensure they are connected correctly.

FAQs

Here are some frequently asked questions about the TPS25740:

  • Q: What is the maximum output current of the TPS25740? A: The maximum output current of the TPS25740 is 2A.
  • Q: What is the maximum output voltage of the TPS25740? A: The maximum output voltage of the TPS25740 is 6V.
  • Q: Can the TPS25740 be used to deliver power to devices other than USB devices? A: Yes, the TPS25740 can be used to deliver power to devices other than USB devices, such as laptops and tablets.

References

Here are some references that may be helpful in configuring the TPS25740:

  • Texas Instruments TPS25740 datasheet
  • Texas Instruments TPS25740 user's guide
  • USB-IF USB Power Delivery specification
    TPS25740 Q&A ================

Introduction

The TPS25740 is a highly integrated USB Power Switch with a built-in voltage regulator, designed to provide a simple and efficient solution for USB power delivery. In this article, we will answer some of the most frequently asked questions about the TPS25740.

Q: What is the maximum output current of the TPS25740?

A: The maximum output current of the TPS25740 is 2A.

Q: What is the maximum output voltage of the TPS25740?

A: The maximum output voltage of the TPS25740 is 6V.

Q: Can the TPS25740 be used to deliver power to devices other than USB devices?

A: Yes, the TPS25740 can be used to deliver power to devices other than USB devices, such as laptops and tablets.

Q: What is the difference between the TPS25740 and other USB Power Switches?

A: The TPS25740 has a built-in voltage regulator, which allows it to provide a regulated output voltage, whereas other USB Power Switches may not have this feature.

Q: How do I configure the TPS25740 for a 5V output?

A: To configure the TPS25740 for a 5V output, you need to set the output voltage to 5V and disable the other output voltages. This can be done by setting the VOUT pin to 5V and setting the VOUT2 pin to a low logic level (GND).

Q: What is the purpose of the OCP and OVP pins on the TPS25740?

A: The OCP and OVP pins on the TPS25740 are used to configure the overcurrent protection (OCP) and overvoltage protection (OVP) thresholds. The OCP threshold is used to detect when the output current exceeds a certain value, and the OVP threshold is used to detect when the output voltage exceeds a certain value.

Q: Can I use the TPS25740 to charge a laptop?

A: Yes, the TPS25740 can be used to charge a laptop. However, you need to ensure that the output voltage and current are compatible with the laptop's charging requirements.

Q: What is the typical application of the TPS25740?

A: The typical application of the TPS25740 is in USB power delivery systems, such as USB hubs, USB switches, and USB chargers.

Q: Can I use the TPS25740 in a high-temperature environment?

A: Yes, the TPS25740 can be used in a high-temperature environment, but you need to ensure that the device is properly heat-sinked to prevent overheating.

Q: What is the typical power consumption of the TPS25740?

A: The typical power consumption of the TPS25740 is around 1-2 mA.

Q: Can I use the TPS25740 in a low-power application?

A: Yes, the TPS25740 can be used in a low-power application, but you need to ensure that the device is configured to minimize power consumption.

Conclusion

In this article, we have answered some of the most frequently asked questions about the TPS25740. We hope that this information has been helpful in understanding the features and capabilities of the TPS25740.

References

Here are some references that may be helpful in understanding the TPS25740:

  • Texas Instruments TPS25740 datasheet
  • Texas Instruments TPS25740 user's guide
  • USB-IF USB Power Delivery specification

Additional Resources

Here are some additional resources that may be helpful in understanding the TPS25740:

  • Texas Instruments TPS25740 evaluation module
  • Texas Instruments TPS25740 development kit
  • USB-IF USB Power Delivery certification program