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TPS23882

現行

具有 SRAM 和 200mΩ RSENSE 的 Type-3、雙對 8 通道 PoE PSE 控制器

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產品規格表

TPS23882

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 44 Vin (max) (V) 57 ILIM Programmable PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2, 802.3bt Type 3 FET External MPS method DC Disconnect Pair control 2-Pair Alt A Operating temperature range (°C) -40 to 125 Features Auto Mode, Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable PCUT, Programmable Port Power Limiting, SRAM Programmable Number of PSE ports 8 Rating Catalog
Vin (min) (V) 44 Vin (max) (V) 57 ILIM Programmable PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2, 802.3bt Type 3 FET External MPS method DC Disconnect Pair control 2-Pair Alt A Operating temperature range (°C) -40 to 125 Features Auto Mode, Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable PCUT, Programmable Port Power Limiting, SRAM Programmable Number of PSE ports 8 Rating Catalog
VQFN (RTQ) 56 64 mm² 8 x 8
  • 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 ±3%
  • 200-mΩ Current sense resistor
  • Legacy PD capacitance measurement
  • 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, semi auto and manual / diagnostic
  • Per Port voltage monitoring and telemetry
  • –40°C to +125°C Temperature operation
  • 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 ±3%
  • 200-mΩ Current sense resistor
  • Legacy PD capacitance measurement
  • 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, semi auto and manual / diagnostic
  • Per Port voltage monitoring and telemetry
  • –40°C to +125°C Temperature operation

The TPS23882 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 TPS23882 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.

The TPS23882 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 TPS23882 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.
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類型 標題 日期
* Data sheet TPS23882 Type-3 2-Pair 8-Channel PoE 2 PSE Controller with SRAM and 200 mΩ RSENSE datasheet (Rev. D) PDF | HTML 2020年 8月 14日
Application brief How to Load TPS2388x SRAM and Parity Code Over I2C (Rev. E) PDF | HTML 2023年 4月 20日
Application brief Choosing PoE PSE System Software Solutions PDF | HTML 2021年 8月 3日
Test report TPS23882 SIFOs 802.3bt Conformance Test Report 2020年 1月 29日
Technical article Get more out of your power supply with port power management PDF | HTML 2019年 11月 11日
Analog Design Journal Challenges and solutions for PoE systems in Ethernet switches 2019年 9月 30日
EVM User's guide TPS23882EVM: PoE, PSE, TPS23882 Evaluation Module 2019年 6月 24日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

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
TI.com 無法提供
開發板

PSEMTHR24EVM-081 — 適用於 24 埠 IEEE 802.3bt 就緒 PSE 系統的主機板

PSEMTHR24EVM-081 is the base board for the TPS23881 and TPS23882 PSE controllers. This board contains 24 2-Pair / 4-Pair ports that can that can be used to send up to 30W/port for IEEE 802.3at applications and up to 90W/port for IEEE 802.3bt applications.

檢視選項
子卡

PSEMCUDAUEVM-082 — 適用於 24 埠 IEEE 802.3bt 就緒 PSE 系統的 MCU 子卡

PSEMCUDAUEVM-082 is the MSP430 MCU daughter card for TI's 24-port reference designs with the TPS23881 and TPS23882. This board combined with the GUI enables FirmPSE which is TI's production ready system firmware that can deliver system features such as port power management and the use of multiple (...)

TI.com 無法提供
子卡

TPS23882EVM-008 — TPS23882 Type-3、30W、2 對、PSE 子板 (用於 8 埠 PSE 系統)

The TPS23882EVM-008 daughter card features an 8 channel, IEEE 802.3bt ready (Type-3, 30W) 2-Pair PSE controller. When paired with the BOOST-PSEMTHR8-097 motherboard and an MSP430 Launchpad, users can evaluate a multiple-port PSE system.

The full PoE Evaluation ecosystem includes the following:
使用指南: PDF
TI.com 無法提供
子卡

TPS23882EVM-084 — TPS23882 Type-3、30W、2 對、PSE 子板 (用於 24 埠 PSE 系統)

TPS23882EVM-084 is a 24-port (24-channel) daughter card used to evaluate the TPS23882 which is a 2-pair, type-3, 8-channel Power-over-Ethernet (PoE) PSE with 200mΩ sense resistor. This daughter card provides evaluation and reference circuitry for the TPS23882 in high port count applications (...)

檢視選項
程式碼範例或展示

SLVC790 — TPS23882 PoE MSP430 Reference Code for Basic Applications

支援產品和硬體

支援產品和硬體

產品
供電設備
TPS23882 — 具有 SRAM 和 200mΩ RSENSE 的 Type-3、雙對 8 通道 PoE PSE 控制器
下載
開發模組 (EVM) 的 GUI

SLVC772 — TPS2388x EVM GUI

lock = 需要匯出核准 (1 分鐘)
支援產品和硬體

支援產品和硬體

產品
供電設備
TPS23880 — 具有可編程 SRAM 的 4 對 Type-4、8 通道 PoE PSE TPS23881 — 具 200mΩ RSENSE 的 4 對 Type-4、8 通道 PoE PSE TPS23882 — 具有 SRAM 和 200mΩ RSENSE 的 Type-3、雙對 8 通道 PoE PSE 控制器 TPS23882B — 具自主模式、SRAM 和 200-mΩ RSENSE 的 Type-3 雙對 8 通道 PoE PSE 控制器
硬體開發
開發板
BOOST-PSEMTHR8-097 — TPS23882 Type-3、30W、2 對、PSE 主機板 (用於 8 埠 PSE 系統)
子卡
TPS23880EVM-008 — 適合 IEEE 802.3bt 就緒 PoE PSE 應用的 TPS23880 EVM 子卡 TPS23881EVM-008 — 適合 IEEE 802.3bt 就緒 PoE PSE 應用的 TPS23881 子卡 TPS23882B1EVM-008 — TPS23882B 子卡 type-3、30-W、雙對、八埠系統 PSE TPS23882EVM-008 — TPS23882 Type-3、30W、2 對、PSE 子板 (用於 8 埠 PSE 系統)
開發套件
BOOST-PSEMTHR-007 — 適合 IEEE 802.3bt 就緒 PoE PSE 應用的 TPS2388x 主機板
lock 下載
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 (...)
要求
參考設計

TIDA-050026-23882 — 適合多埠應用的 24 埠 (PoE 2、2 對) 電源設備參考設計;

This reference design showcases a Type-3, 30W, 2-Pair 24-port Ethernet switch for Power over Ethernet (PoE) applications which can send up to 30W per port for IEEE 802.3bt Type 3 applications and up to 60W per port for non-standard applications. Based on the MSP430F523x family, TI's TPS2388x (...)
Design guide: PDF
電路圖: PDF
封裝 引腳 下載
VQFN (RTQ) 56 檢視選項
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  • 資格摘要
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