TPS23770
- Complete 802.3af PoE Interface
- Features derived from the TPS2375
- 100 V, 0.6
Internal Pass MOSFET - Standard and Legacy UVLO Choices
- Fixed 140 mA Inrush Limit
- Primary Side DC/DC Converter Control
- Minimum External Component Count
- Current Mode Control
- Isolated and Non-Isolated Topologies
- Programmable Operating Frequency
- Current Sense Leading-edge Blanking
- 50% Duty Cycle Limiting
- Voltage Output Error Amplifier
- Internal PoE and Converter Sequencing
- Industry-Standard 20 Lead Package
- Industrial Temperature Range, -40°C to 85°C
- APPLICATIONS
- All PoE PD Devices Including:
- Wireless Access Points
- VoIP Phones
- Security Cameras
- All PoE PD Devices Including:
PowerPAD is a trademark of Texas Instruments.
The TPS23750 integrates the functionality of the TPS2375 with a primary side dc/dc PWM controller. The designer can create a front-end solution for PoE-PD applications with minimum external components. The TPS23770 is identical to the TPS23750 with the exception of the undervoltage lockout turn-on voltage, which is compatible with legacy systems.
The PoE front end has all the necessary IEEE 802.3af functions including detection, classification, undervoltage lockout and inrush control. The PoE input switch is integrated within the TPS23750.
The dc/dc controller section is designed to support flyback, forward, and nonsynchronous low-side switch buck topologies.
The external switching MOSFET and current sense resistor provide flexibility in topology, power level, and current limit. The full-featured dc/dc controller includes programmable soft start, hiccup type fault limiting, 50% maximum duty cycle, programmable constant switching frequency, and a true voltage-output error amplifier. Additional protection features provide for robust designs.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Integrated 100-V IEEE 802.3af PD and DC/DC Controller datasheet (Rev. B) | 2008/02/07 | |
| Application note | PoE Powered Devices Debug Guidelines | PDF | HTML | 2021/07/19 | |
| Application note | PoE PD Schematic Review Guidelines | PDF | HTML | 2021/04/29 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Application note | Designing an EMI Compliant PoE with Isolated Flyback | 2008/05/20 | ||
| Application note | Practical Guidelines EMI Compliant PoE | 2008/03/27 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS23750EVM-107 — TPS23750 평가 모듈 벅
The TPS23750EVM-107 evaluation module implements an IEEE 802.3af-compliant class-3 power interface and a non-isolated DC/DC switching converter using the Texas Instruments TPS23750 powered device (PD) controller in a typical power-over-Ethernet (PoE) configuration.
TPS23750EVM-108 — TPS23750 평가 모듈 플라이백
The TPS23750EVM-108 evaluation module implements an IEEE 802.3af-compliant class-3 power interface and a DC/DC switching converter using the Texas Instruments TPS23750 powered device (PD) controller in a typical power-over-Ethernet (PoE) configuration.
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 (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 20 | 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.