Overview
The TPS23757PWR is a highly efficient Power over Ethernet (PoE) interface and DC/DC controller produced by Texas Instruments. Designed for use in PoE applications, this component integrates both the PoE interface and DC/DC converter functionalities into a single device, making it a versatile solution for powering network devices such as IP cameras, VoIP phones, and wireless access points. Marketed as a cost-effective and reliable option, the TPS23757PWR is particularly suited for applications requiring compliance with the IEEE 802.3at standard, offering up to 25.5W of power delivery.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 0 to 57 | V | |
| Output Current | 400 | mA | |
| On-Resistance | 800 | mΩ | |
| Operating Temperature | -40 to +125 | °C | |
| Package | TSSOP-20 | Surface Mount | |
| Compliance | IEEE 802.3at | PoE Standard |
Key Features
- Integrated PoE interface and DC/DC controller
- Compliant with IEEE 802.3at standard
- High efficiency power conversion
- Wide input voltage range (0V to 57V)
- Robust thermal performance with operating temperatures from -40°C to +125°C
Applications
The TPS23757PWR is widely used in various network devices that require Power over Ethernet capabilities. Common applications include IP cameras, VoIP phones, wireless access points, and other network equipment. Its ability to deliver up to 25.5W of power makes it ideal for devices that need reliable and efficient power delivery over Ethernet cables, reducing the need for additional power supplies and simplifying installation.
Q & A
1. What is the maximum power output of the TPS23757PWR?
The TPS23757PWR can deliver up to 25.5W of power, compliant with the IEEE 802.3at standard.
2. What is the input voltage range for this component?
The input voltage range is from 0V to 57V.
3. Is the TPS23757PWR suitable for outdoor applications?
Yes, it operates in a temperature range of -40°C to +125°C, making it suitable for harsh environments.
4. What package does the TPS23757PWR come in?
It comes in a TSSOP-20 surface-mount package.
5. Does the TPS23757PWR require external components for operation?
It requires minimal external components, simplifying the design process.
6. Can the TPS23757PWR be used in non-PoE applications?
While it is optimized for PoE applications, it can be used in other DC/DC conversion scenarios.
7. What is the typical efficiency of the TPS23757PWR?
It offers high efficiency power conversion, though specific values depend on the application.
8. Is the TPS23757PWR compliant with other PoE standards?
It is specifically compliant with the IEEE 802.3at standard.
9. What is the on-resistance of the internal MOSFET?
The on-resistance is 800mΩ.
10. Where can I find the datasheet for the TPS23757PWR?
The datasheet is available on the Texas Instruments official website.
