TPS23882
- 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.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS23882 Type-3 2-Pair 8-Channel PoE 2 PSE Controller with SRAM and 200 mΩ RSENSE datasheet (Rev. D) | PDF | HTML | 2020/08/14 |
| Application brief | How to Load TPS2388x SRAM and Parity Code Over I2C (Rev. E) | PDF | HTML | 2023/04/20 | |
| Application brief | Choosing PoE PSE System Software Solutions | PDF | HTML | 2021/08/03 | |
| Test report | TPS23882 SIFOs 802.3bt Conformance Test Report | 2020/01/29 | ||
| Technical article | Get more out of your power supply with port power management | PDF | HTML | 2019/11/11 | |
| Analog Design Journal | Challenges and solutions for PoE systems in Ethernet switches | 2019/09/30 | ||
| EVM User's guide | TPS23882EVM: PoE, PSE, TPS23882 Evaluation Module | 2019/06/24 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BOOST-PSEMTHR8-097 — 8포트 PSE 시스템용 TPS23882 Type-3, 30W, 2페어 PSE 마더보드
PSEMTHR24EVM-081 — 24포트 IEEE 802.3bt 지원 PSE 시스템용 마더보드
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.
PSEMCUDAUEVM-082 — 24포트 IEEE 802.3bt 지원 PSE 시스템용 MCU 도터 카드
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 (...)
TPS23882EVM-008 — 8포트 PSE 시스템을 위한 TPS23882 Type-3, 30W, 2페어, PSE 도터 카드
The full PoE Evaluation ecosystem includes the following:
TPS23882EVM-084 — 24포트 PSE 시스템용 TPS23882 Type-3, 30W, 2페어 PSE 도터 카드
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 (...)
SLVC772 — TPS2388x EVM GUI
지원되는 제품 및 하드웨어
제품
전력원 장비
하드웨어 개발
평가 보드
도터 카드
개발 키트
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
TIDA-050026-23882 — 멀티 포트 애플리케이션을 위한 24포트(PoE 2, 2페어) 전력원 장비 레퍼런스 설계
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| VQFN (RTQ) | 56 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.