Overview
The TPS23756EVM is an evaluation module designed for the TPS23756, a Class 4 Power over Ethernet (PoE) Powered Device (PD) and DC-DC controller from Texas Instruments. This module is intended to facilitate the development and testing of high-power PoE applications, particularly those requiring isolated converter topologies. The TPS23756EVM supports a wide input voltage range of 12V to 57V and is compliant with the IEEE 802.3at PoE standard.
Key Specifications
| Parameter | Specification |
|---|---|
| Input Voltage Range | 12V to 57V |
| Power Rating | Up to 30W (Input) PDs |
| PoE Standard | IEEE 802.3at |
| DC-DC Controller Topology | Optimized for isolated converters, including flyback and forward converters |
| Gate Drivers | Two complementary gate drivers with programmable dead time |
| Junction Temperature Range | –40°C to 125°C |
| Package Type | HTSSOP-20 |
| MOSFET Characteristics | Robust 100-V, 0.5-Ω Hotswap MOSFET |
Key Features
- Complete PoE interface supporting IEEE 802.3at with enhanced classification and status flag
- Adapter ORing support with options for highest voltage, external adapter preference, and PoE preference
- Programmable frequency with synchronization for efficiency optimization
- Internal soft start, bootstrap start-up source, and current-mode compensation
- 78% maximum duty cycle and accurate programmable blanking
- Support for high-efficiency topologies including active-clamp forward converters and flyback converters
Applications
The TPS23756EVM is suitable for a variety of high-power PoE applications, including:
- IP security cameras
- Wireless access points
- VoIP phones
- Building automation systems
- Industrial control systems
Q & A
- What is the input voltage range of the TPS23756EVM?
The input voltage range is 12V to 57V. - What PoE standard does the TPS23756EVM support?
The TPS23756EVM supports the IEEE 802.3at PoE standard. - What types of DC-DC converter topologies are supported by the TPS23756?
The TPS23756 supports isolated converter topologies, including flyback and forward converters. - What is the maximum power rating of the TPS23756?
The maximum power rating is up to 30W (Input) PDs. - What is the junction temperature range of the TPS23756?
The junction temperature range is –40°C to 125°C. - Does the TPS23756EVM support adapter ORing?
Yes, it supports adapter ORing with options for highest voltage, external adapter preference, and PoE preference. - Can the frequency of the TPS23756 be programmed and synchronized?
Yes, the frequency is programmable and synchronizable for efficiency optimization. - What package type is used for the TPS23756?
The package type is HTSSOP-20. - What are the characteristics of the MOSFET in the TPS23756?
The MOSFET is a robust 100-V, 0.5-Ω Hotswap MOSFET. - What are some common applications for the TPS23756EVM?
Common applications include IP security cameras, wireless access points, VoIP phones, building automation systems, and industrial control systems.
