Overview
The TPS23756PWPR from Texas Instruments is a high-power, high-efficiency Power over Ethernet (PoE) interface and DC-DC controller. This device is designed to manage and control the delivery of power over Ethernet cables in PoE systems, complying with the IEEE 802.3at standard. It combines a PoE powered-device (PD) interface with a current-mode DC-DC controller optimized for isolated converters, making it suitable for a wide range of applications requiring both data and power transmission over a single Ethernet cable.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | HTSSOP (PWP) - 20 pins |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | 9.3 V to 57 V |
| Maximum Output Power | 30 W (Class 4 PoE) |
| Maximum Duty Cycle | 78% |
| Switching Frequency | Programmable, Synchronizable |
| PoE Standards Supported | IEEE 802.3at Type 1 (802.3af), IEEE 802.3at Type 2 |
| PoE Current Limit (Min) | 850 mA |
| PoE Inrush Limit (Typ) | 140 mA |
| rDS(on) per FET (Typ) | 430 mΩ |
Key Features
- Powers up to 30-W (Input) PDs
- DC-DC Control Optimized for Isolated Converters
- Supports High-Efficiency Topologies
- Complete PoE Interface with IEEE 802.3at Compliance
- Enhanced Classification per IEEE 802.3at With Status Flag
- Adapter ORing Support (Highest Voltage, External Adapter Preference, PoE Preference)
- Programmable Frequency With Synchronization
- Robust 100-V, 0.5-Ω Hotswap MOSFET
- Thermal Shutdown and Second Gate Drive
Applications
- Midspan Injectors: Adds power to Ethernet cables that do not already carry power.
- PoE Switches: Manages power distribution to multiple PDs connected to the switch.
- Network Hubs and Routers: Provides power to connected devices such as IP cameras, wireless access points, and VoIP phones.
- Industrial Automation Systems: Simplifies the deployment of sensors, actuators, and other networked equipment by providing both data and power over a single Ethernet cable.
- Surveillance Systems: Ensures reliable power delivery to security cameras and other surveillance equipment.
- Smart Home Devices: Reduces the need for separate power sources in devices like smart thermostats, doorbells, and security systems.
Q & A
- What is the TPS23756PWPR used for?
The TPS23756PWPR is used to manage and control the delivery of power over Ethernet cables in PoE systems, complying with the IEEE 802.3at standard.
- What are the key features of the TPS23756PWPR?
Key features include DC-DC control optimized for isolated converters, complete PoE interface, enhanced classification, adapter ORing support, programmable frequency, and robust hotswap MOSFET.
- What is the operating temperature range of the TPS23756PWPR?
The operating temperature range is -40°C to 125°C.
- What is the maximum output power of the TPS23756PWPR?
The maximum output power is 30 W (Class 4 PoE).
- Which PoE standards does the TPS23756PWPR support?
The device supports IEEE 802.3at Type 1 (802.3af) and IEEE 802.3at Type 2.
- What are some common applications of the TPS23756PWPR?
Common applications include midspan injectors, PoE switches, network hubs and routers, industrial automation systems, surveillance systems, and smart home devices.
- What is the input voltage range of the TPS23756PWPR?
The input voltage range is 9.3 V to 57 V.
- Is the TPS23756PWPR RoHS compliant?
- What is the package type of the TPS23756PWPR?
The package type is HTSSOP (PWP) with 20 pins.
- Does the TPS23756PWPR have thermal shutdown protection?
