Overview
The TPS23754PWP-1, produced by Texas Instruments, is a highly integrated power-over-ethernet (PoE) interface and isolated converter controller. This device combines a PoE interface with a current-mode DC-DC controller, optimized specifically for isolated converters. It supports the IEEE 802.3at standard, making it suitable for high-power applications. The TPS23754PWP-1 is packaged in a 20-pin HTSSOP (PWP) package and operates over a wide junction temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Vin (min) | 15.7 V |
| Vin (max) | 57 V |
| PoE current limit (min) | 850 mA |
| PoE inrush limit (typ) | 0.14 A |
| rDS(on) per FET (typ) | 430 mΩ |
| PoE standards supported | 802.3at Type 1 (802.3af), 802.3at Type 2 |
| PD power level | 13 W, 25 W |
| DC/DC control | PD and DC/DC |
| Fault response | Auto Retry |
| Operating temperature range | -40°C to 125°C |
| Package | HTSSOP-20 |
Key Features
- Powers up to 30-W (Input) PDs
- DC-DC Control Optimized for Isolated Converters
- Supports High-Efficiency Topologies
- Complete PoE Interface
- Enhanced Classification per IEEE 802.3at With Status Flag
- Adapter ORing Support
- Programmable Frequency With Synchronization
- Robust 100-V, 0.5-Ω Hotswap MOSFET
- Industry Standard PowerPAD™ HTSSOP-20
- 15-V Converter Start-Up (for TPS23754 device)
Applications
The TPS23754PWP-1 is designed for various high-power applications that require efficient power delivery over Ethernet. These include:
- Power-over-Ethernet (PoE) devices such as IP phones, wireless access points, and security cameras.
- Isolated DC-DC converters in industrial, medical, and telecommunications equipment.
- High-efficiency power supplies for data centers and cloud infrastructure.
- Networking equipment such as switches and routers.
Q & A
- What is the primary function of the TPS23754PWP-1?
The TPS23754PWP-1 is a combined power-over-ethernet (PoE) interface and isolated converter controller.
- Which PoE standard does the TPS23754PWP-1 support?
The device supports the IEEE 802.3at standard, including Type 1 (802.3af) and Type 2.
- What is the operating temperature range of the TPS23754PWP-1?
The device operates over a temperature range of -40°C to 125°C.
- What types of DC-DC topologies does the TPS23754PWP-1 support?
The device supports high-efficiency topologies such as active-clamp forward converters and optimized gate drive for flyback topologies.
- How does the TPS23754PWP-1 handle input voltage ORing?
The device supports input voltage ORing options including highest voltage, external adapter preference, and PoE preference.
- What is the maximum power level supported by the TPS23754PWP-1?
The device can power up to 30-W input PDs and supports PD power levels of 13 W and 25 W.
- Does the TPS23754PWP-1 have programmable frequency capabilities?
Yes, the device features a programmable and synchronizable oscillator.
- What type of MOSFET does the TPS23754PWP-1 include?
The device includes a robust 100-V, 0.5-Ω hotswap MOSFET.
- How does the TPS23754PWP-1 handle fault responses?
The device features an auto-retry fault response mechanism.
- What is the package type of the TPS23754PWP-1?
The device is packaged in a 20-pin HTSSOP (PWP) package with PowerPAD™ technology.
