TPS2372-4RGWR

The Texas Instruments TPS2372-4RGWR is a highly integrated Power over Ethernet (PoE) powered device (PD) controller designed for applications that require efficient power management and distribution over Ethernet cables. This device is particularly suitable for powering devices such as IP cameras, VoIP phones, and wireless access points, where both data and power are transmitted over a single cable. Below is a detailed overview of the TPS2372-4RGWR, including its specifications, features, and potential applications.

### Overview

The TPS2372-4 is a PoE PD controller that complies with IEEE 802.3af and IEEE 802.3at standards, allowing it to operate in both Class 0 and Class 4 power levels. It integrates various features that enhance its performance, including a built-in DC-DC converter, power management capabilities, and protection features. The device is designed to simplify the design of PoE applications while ensuring reliable operation.

### Key Features

1. IEEE 802.3af/802.3at Compliance: The TPS2372-4 is compliant with the IEEE 802.3af and 802.3at standards, enabling it to receive power from PoE sources effectively.

2. Integrated DC-DC Converter: The device includes an integrated boost converter that allows for efficient voltage regulation and power management, reducing the need for external components.

3. Wide Input Voltage Range: The TPS2372-4 operates over a wide input voltage range of 36V to 57V, making it suitable for various PoE applications.

4. Power Management Features: The device supports power classification and power management features, allowing it to negotiate power levels with the power sourcing equipment (PSE).

5. Thermal Protection: The TPS2372-4 includes thermal shutdown protection to prevent overheating and ensure reliable operation under varying load conditions.

6. Low Quiescent Current: The device features low quiescent current consumption, which is essential for battery-powered applications and energy-efficient designs.

7. Small Package Size: The TPS2372-4 is available in a compact RGW (VQFN) package, which is ideal for space-constrained applications.

8. Integrated Current Sense Resistor: The device includes an integrated current sense resistor for accurate current monitoring and control.

### Specifications

- Input Voltage Range: 36V to 57V
- Power Classification: Class 0 (up to 15.4W) and Class 4 (up to 30W)
- Output Voltage: Adjustable output voltage based on application requirements
- Quiescent Current: 10 µA (typical) in standby mode
- Operating Temperature Range: -40°C to 125°C
- Thermal Shutdown: Yes
- Package Type: VQFN (RGW) with 16 pins
- Switching Frequency: 300 kHz (typical)
- Efficiency: Up to 90% depending on load conditions

### Applications

The TPS2372-4RGWR is suitable for a wide range of applications, including:

- Power over Ethernet (PoE) devices such as IP cameras and VoIP phones
- Wireless access points and routers
- Industrial automation and control systems
- Building automation systems
- Any application requiring power delivery over Ethernet cables

### Conclusion

The Texas Instruments TPS2372-4RGWR is a versatile and efficient PoE PD controller that provides a robust solution for powering devices over Ethernet. With its compliance to IEEE standards, integrated DC-DC converter, and various protection features, it simplifies the design of PoE applications while ensuring reliable performance. The device%27s wide input voltage range, low quiescent current, and compact package make it an ideal choice for modern electronic devices that require efficient power management. Whether used in consumer electronics, industrial applications, or telecommunications, the TPS2372-4 offers a reliable and effective solution for Power over Ethernet applications.