Herramienta de cálculo
TPS23752
Interfaz de PoE IEEE 802.3at con controlador CC-CC de retorno y función de modo de suspensión
Hoja de datos
TPS23752
- IEEE 802.3at Classification With Status Flag
- High Efficiency Solutions Over Wide Load Range
- Powers Up to 25.5 W PDs
- Robust 100 V, 0.5 Ω Hotswap MOSFET
- Synchronous Rectifier Disable Signal
- PowerPAD™ TSSOP Packages
- Complete PoE Interface Plus DC-DC Controller
- Adapter ORing Support
- Programmable Frequency
- TPS23752 Supports Ultra-Low Power Sleep Modes
- –40°C to 125°C Junction Temperature Range
The TPS23751 is a 16-pin integrated circuit that combines a Power-over-Ethernet (PoE) powered device (PD) interface and a current-mode DC-DC controller optimized specifically for applications requiring high efficiency over a wide load range.
The PoE interface implements type-2 hardware classification per IEEE 802.3at. It also includes an auxiliary power detect (APD) input and a disable function (DEN). A 0.5-Ω, 100-V pass MOSFET minimizes heat dissipation and maximizes power utilization.
The DC-DC controller features internal soft-start, a bootstrap startup current source, current-mode control with slope compensation, blanking, and current limiting. Efficiency is enhanced at light loads by disabling synchronous rectification and entering variable frequency operation (VFO).
The TPS23752 is a 20-pin extended version of the TPS23751 with the addition of a Sleep Mode feature. Sleep Mode disables the converter to minimize power consumption while still generating the Maintain Power Signature (MPS) required by IEEE802.3at.
Documentación técnica
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Ver todo 11 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | TPS2375x IEEE 802.3at PoE Interface With Flyback DC-DC Controller datasheet (Rev. E) | PDF | HTML | 26 ene 2018 |
| Application note | PoE Powered Devices Debug Guidelines | PDF | HTML | 19 jul 2021 | |
| Application note | PoE PD Schematic Review Guidelines | PDF | HTML | 29 abr 2021 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
| Technical article | Maximizing PoE PD efficiency on a budget | PDF | HTML | 10 nov 2015 | |
| Application note | Lightning Surge Considerations for PoE Powered Devices | 30 abr 2015 | ||
| Application note | TPS23752 Maintain Power Signature Operation in Sleep Mode | 12 abr 2013 | ||
| User guide | TPS23752EVM-145 EVM: Evaluation Module for TPS23752 | 28 jul 2012 | ||
| Application note | High Efficiency Class 4 PoE Powered Device | 23 mar 2011 | ||
| Application note | Advanced Adapter ORing Solutions using the TPS23753 (Rev. A) | 09 feb 2009 | ||
| Application note | Designing an EMI Compliant PoE with Isolated Flyback | 20 may 2008 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
Placa de evaluación
TPS23752EVM-145 — Módulo de evaluación TPS23752
The Texas Instruments TPS23752EVM-145 evaluation module (EVM) helps designers evaluate the performance of the TPS23752 IEEE 802.3at PoE Interface and Green-mode DC/DC Controller. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.
Guía del usuario: PDF
Herramienta de simulación
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
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 (...)
Diseños de referencia
PMP30290 — Diseño de referencia de sincronización y retroalimentación de 18,5 V a 57V de entrada auxiliar a 5,3
This compact reference design is a typical PoE application, supplying 10W at 5.3V from Ethernet power. Data filter, external auxiliary input and EMI filter are all on board. The synchronous rectification improves the efficiency, important at only 5.3V output voltage.
Diseños de referencia
PMP9013 — Diseño de referencia de convertidor de retorno síncrono de Clase 4 (5 V a 4.5 A) con modo de suspens
The PMP9013 is an IEEE802.3at, Type 2 compliant, high-efficiency synchronous flyback converter (5V @4.5A) with sleep mode used for PD design in PoE applications. The reference design has the ability to allow an external adapter to supply power to the board if PoE power is not available.
Diseños de referencia
PMP8812 — Diseño de referencia de convertidor PoE de Clase 4 de 12 V y alta eficiencia
This design is a 12V/2.1A synchronous flyback converter for high efficiency PoE applications. The TPS23752 combines the Powered Device and PWM controllers in one package. Additional features are synchronous rectifier disable for improved light load efficiency and support for ulta low power sleep (...)
Test report: PDF
| Paquete | Pasadores | Descargar |
|---|---|---|
| HTSSOP (PWP) | 20 | Ver opciones |
Pedidos y calidad
Información incluida:
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
Información incluida:
- Lugar de fabricación
- Lugar de ensamblaje
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