開發模組 (EVM) 的 GUI
TPS23882B
- IEEE 802.3bt PSE solution for PoE 2 Type-3 2-Pair power over ethernet applications
- Compatible with TI’s FirmPSE system firmware
- SRAM Programmable memory
- Programmable power limiting accuracy ±4%
- 200-mΩ current sense resistor
- User-selectable 15-W or 30-W autonomous mode with no MCU required
- Selectable 2-pair port power allocations
- 4 W, 7 W, 15.4 W, or 30 W
- Dedicated 14-bit integrating current ADC per port
- Noise immune MPS for DC disconnect
- 2% current sensing accuracy
- 1- or 3-bit fast port shutdown input
- Auto-class discovery and power measurement
- Never fooled 4-point detection
- Inrush and operational foldback protection
- 425-mA and 1.25-A selectable current limits
- Port re-mapping
- 8-bit or 16-bit I2C communication
- Flexible processor controlled operating modes
- Auto, semiauto and manual / diagnostic
- Per port voltage monitoring and telemetry
- –40 °C to +125 °C temperature operation
The TPS23882B is an 8-channel power sourcing equipment (PSE) controller engineered to insert power onto Ethernet cables in accordance with the IEEE 802.3bt standard. The PSE controller can detect powered devices (PDs) that have a valid signature, complete mutual identification, and apply power.
The TPS23882B improves on the TPS2388 with reduced current sense resistors, SRAM programmability, programmable power limiting, capacitance measurement, and compatibility with TI’s FirmPSE system firmware (see Device Comparison Table).
Programmable SRAM enables in-field firmware upgradability over I2C to ensure IEEE compliance and interoperability with the latest PoE enabled devices. Dedicated per port ADCs provide continuous port current monitoring and the ability to perform parallel classification measurements for faster port turn on times. A 1.25-A port current limit and adjustable power limiting allows for the support of non-standard applications above 60-W sourced. The 200-mΩ current sense resistor and external FET architecture allow designs to balance size, efficiency, thermal and solution cost requirements.
Port remapping and pin-to-pin compatibility with the TPS2388, TPS23880, and TPS23881 devices eases migration from previous generation PSE designs and enables interchangeable 2-layer PCB designs to accommodate different system PoE power configurations.
技術文件
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS23882B Type-3 2-Pair 8-Channel PSE Controller with Autonomous Mode, SRAM, and 200-mΩ RSENSE datasheet (Rev. A) | PDF | HTML | 2022年 2月 23日 |
| Application note | TPS23882B SIFOs IEEE802.3bt Conformance Test Report | PDF | HTML | 2023年 8月 9日 | |
| Application brief | Choosing PoE PSE System Software Solutions | PDF | HTML | 2021年 8月 3日 | |
| Application brief | Using the TPS23861 and TPS23882B in Autonomous Mode Features and Benefits | PDF | HTML | 2021年 7月 30日 | |
| EVM User's guide | TPS23882B1EVM: PoE, PSE, TPS23882B1 Evaluation Module | PDF | HTML | 2021年 4月 29日 | |
| Certificate | TPS23882B1EVM-008 EU RoHs Declaration of Conformity (DoC) | 2021年 4月 23日 |
設計與開發
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開發板
BOOST-PSEMTHR8-097 — TPS23882 Type-3、30W、2 對、PSE 主機板 (用於 8 埠 PSE 系統)
This motherboard is the base board for the PSE Controller ecosystem. The octal channel, TPS23882, IEEE 802.3bt ready PoE PSE controller can be evaluated by using the motherboard (BOOST-PSEMTHR8-097) and TPS23882EVM daughter card (TPS23882EVM-008) (sold separately). The full PoE Evaluation ecosystem (...)
使用指南: PDF
子卡
TPS23882B1EVM-008 — TPS23882B 子卡 type-3、30-W、雙對、八埠系統 PSE
TPS23882B1EVM-008 子卡具有八通道，IEEE 802.3bt 就緒 (Type-3、30-W) 2 對 PSE 控制器。
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
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建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。