Overview
The TPS2373-3RGWR is a high-power Power over Ethernet (PoE) powered device (PD) controller manufactured by Texas Instruments. This component is designed to comply with IEEE 802.3at (PoE+) and IEEE 802.3bt (draft) standards, supporting Type 3 and Type 4 PoE applications. It is particularly suited for high-power applications, such as those requiring up to 60 watts of power. The device features advanced startup capabilities, robust hotswap MOSFETs, and automatic maintain power signature (MPS) functionality, making it an efficient and reliable solution for various PoE implementations.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS2373-3RGWR |
| Package | 20-VQFN Exposed Pad (5x5) |
| Number of Channels | 1 |
| Power - Max | 60 W |
| Internal Switch(s) | Yes |
| Auxiliary Sense | Yes |
| Standards | IEEE 802.3at (PoE+), IEEE 802.3bt |
| Voltage - Supply | 0 V ~ 57 V |
| Current - Supply | 20 mA |
| Operating Temperature | -40°C ~ 125°C |
| Hotswap MOSFET Resistance (Typ.) | 0.3 Ω, 1.85 A Current Limit |
Key Features
- IEEE 802.3bt (Draft) PD Solution for Type 3 or Type 4 PoE
- Supports Power Levels for Type-3 (60 W) and Type-4 (90 W) Operation
- Robust 100 V Hotswap MOSFET
- Advanced Startup for DC-DC Converters, simplifying downstream DC-DC design
- Compliant to PSE Inrush and Automatic Maintain Power Signature (MPS)
- Auto-adjust MPS for Type 1-2 or 3-4 PSE
- Supports Ultra-Low Power Standby Modes
- Primary Adapter Priority Input
- Supports PoE++ PSE
Applications
The TPS2373-3RGWR is suitable for a variety of high-power PoE applications, including:
- IP Phones and Video Phones
- Wireless Access Points (WAPs)
- IP Cameras and Surveillance Systems
- Point of Sale (POS) Terminals
- Industrial Control Systems and IoT Devices
Q & A
- What is the maximum power supported by the TPS2373-3RGWR?
The TPS2373-3RGWR supports up to 60 watts of power for Type 3 PoE applications.
- What are the operating temperature ranges for the TPS2373-3RGWR?
The operating temperature range is from -40°C to 125°C.
- What package type does the TPS2373-3RGWR come in?
The component is packaged in a 20-VQFN Exposed Pad (5x5) package.
- Does the TPS2373-3RGWR support hotswap functionality?
Yes, it features a robust 100 V hotswap MOSFET.
- What standards does the TPS2373-3RGWR comply with?
The device complies with IEEE 802.3at (PoE+) and IEEE 802.3bt (draft) standards.
- How does the Advanced Startup function benefit the system design?
The Advanced Startup function simplifies downstream DC-DC design, reduces the size of the low voltage bias capacitor, and allows for a long DC-DC converter soft-start period.
- What is the purpose of the Automatic Maintain Power Signature (MPS) function?
The MPS function enables applications requiring very low power standby modes by automatically generating the necessary pulsed current to maintain the PSE power.
- Can the TPS2373-3RGWR be used in ultra-low power standby modes?
Yes, it supports ultra-low power standby modes.
- How does the Primary Adapter Priority Input feature work?
The Primary Adapter Priority Input allows for prioritization of power sources, ensuring that the device can select the primary power adapter based on predefined criteria.
- Is the TPS2373-3RGWR RoHS compliant?
Yes, the TPS2373-3RGWR is RoHS compliant.
