Inicio Administración de potencia Circuitos integrados de alimentación a través de Ethernet (PoE) Equipos de alimentación

TPS2388

ACTIVO

PSE de 2 pares, tipo 2, 8 canales, PoE

Detalles del producto

PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2 MPS method DC Disconnect Features Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable ICUT Number of PSE ports 8 Pair control 2-Pair Alt A Vin (max) (V) 57 Vin (min) (V) 44 FET External ILIM Programmable Operating temperature range (°C) -40 to 125 Rating Catalog
PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2 MPS method DC Disconnect Features Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable ICUT Number of PSE ports 8 Pair control 2-Pair Alt A Vin (max) (V) 57 Vin (min) (V) 44 FET External ILIM Programmable Operating temperature range (°C) -40 to 125 Rating Catalog
VQFN (RTQ) 56 64 mm² (8 mm × 8 mm)
  • Fully IEEE 802.3at Compliant
  • Port Re-Mapping
  • 1- and 3-Bit Fast Port Shutdown Input
  • “Never Fooled” 4-Point Detection
  • Type 1 and Type 2 PD Classification
  • Programmable Current Limit With Foldback
  • DC Disconnect Detection
  • Flexible Processor Controlled Operating Modes
    • Semiauto
    • Manual
  • 14-Bit Port Current and Voltage Monitoring
    • 100-ms Rolling Port Current Averaging
    • 2% Current Sensing Accuracy
    • 0.255-Ω Sense Resistor With Kelvin Sense
  • I2C Communication
    • I2C Watchdog for Failsafe Operation
    • 8- and 16-Bit Access Mode Selectable
  • –40°C to 125°C Temperature Operation
  • 56-Lead VQFN Package
  • Fully IEEE 802.3at Compliant
  • Port Re-Mapping
  • 1- and 3-Bit Fast Port Shutdown Input
  • “Never Fooled” 4-Point Detection
  • Type 1 and Type 2 PD Classification
  • Programmable Current Limit With Foldback
  • DC Disconnect Detection
  • Flexible Processor Controlled Operating Modes
    • Semiauto
    • Manual
  • 14-Bit Port Current and Voltage Monitoring
    • 100-ms Rolling Port Current Averaging
    • 2% Current Sensing Accuracy
    • 0.255-Ω Sense Resistor With Kelvin Sense
  • I2C Communication
    • I2C Watchdog for Failsafe Operation
    • 8- and 16-Bit Access Mode Selectable
  • –40°C to 125°C Temperature Operation
  • 56-Lead VQFN Package

The TPS2388 is an 8-channel power source equipment (PSE) controller engineered to insert power onto Ethernet cable according to IEEE 802.3at-2012 standard (or 802.3at). The PSE controller can detect powered devices (PDs) that have a valid signature, determine the power requirements according to the classification, and apply power through either one (Type -1) or two-event (Type-2) physical classification. The TPS2388 also has the flexibility to support UPoE and other non-standard loads.

The Port remapping and the device pinout allow designers to enable 2-layer PCB designs and simplify software migration from previous generation PSE devices. The external FET architecture allows designers to further balance size, efficiency, thermal, and solution cost requirements. The current foldback reduces thermal stress on the external MOSFETs during startup and overload conditions allowing the use of cheaper FETs.

The Fast Shutdown (OSS) input provides up to eight levels of per port shutdown priority for applications that require the immediate disabling of multiple ports.

The TPS2388 is an 8-channel power source equipment (PSE) controller engineered to insert power onto Ethernet cable according to IEEE 802.3at-2012 standard (or 802.3at). The PSE controller can detect powered devices (PDs) that have a valid signature, determine the power requirements according to the classification, and apply power through either one (Type -1) or two-event (Type-2) physical classification. The TPS2388 also has the flexibility to support UPoE and other non-standard loads.

The Port remapping and the device pinout allow designers to enable 2-layer PCB designs and simplify software migration from previous generation PSE devices. The external FET architecture allows designers to further balance size, efficiency, thermal, and solution cost requirements. The current foldback reduces thermal stress on the external MOSFETs during startup and overload conditions allowing the use of cheaper FETs.

The Fast Shutdown (OSS) input provides up to eight levels of per port shutdown priority for applications that require the immediate disabling of multiple ports.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Funcionalidad similar a la del dispositivo comparado
TPS23881 ACTIVO PSE PoE de 4 pares, tipo 4 y 8 canales con RSENSE de 200 mΩ  This product is an IEEE802.3bt-ready PSE controller.

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 4
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS2388 IEEE 802.3at 8-Channel Power-over-Ethernet PSE Controller datasheet (Rev. A) PDF | HTML 16/08/2017
Guía de diseño 24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multiport Applications (Rev. C) PDF | HTML 31/03/2026
Guía de diseño SIFOs 802.3at Conformance Report, v 4.1.05, TPS2388 23/08/2017
Nota sobre la aplicación TPS23861 Power-On Considerations 21/07/2015

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

TPS2388EVM-612 — Módulo de evaluación TPS2388 para aplicaciones PSE de PoE IEEE802.3at

El TPS2388EVM-612 cuenta con el controlador PSE PoE de canal octal, TPS2388, IEEE 802.3at. El EVM consta de una placa base (TPS2388EVM-612) y una placa secundaria (TPS2388EVM-016) que contiene un dispositivo TPS2388. El TPS2388EVM-612 proporciona una interfaz de plataforma base multipuerto para (...)
Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Ejemplo de código o demostración

SLUC636 — TPS2388 PoE MSP430 Reference Code for Basic Applications

Productos y hardware compatibles
Ejemplo de código o demostración

SLUC640 — TPS2388 PoE MSP430 Reference Code for Multi-Port Power Management Applications

Productos y hardware compatibles
GUI para el módulo de evaluación (EVM)

SLUC642 — TPS2388EVM GUI

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RTQ) 56 Ultra Librarian

Pedidos y calidad

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos