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TPS2376

ACTIVO

PD de PoE de clase 3 con umbral UVLO ajustable y protección de cierre

Detalles del producto

PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD Only Vin (max) (V) 57 Vin (min) (V) 0 PoE current limit (min) (mA) 405 PoE inrush limit (mA) (typ) (A) Programmable rDS(on) per FET (typ) (mΩ) 580 Features PG, Programmable UVLO, Thermal shutdown Fault response Latch Operating temperature range (°C) -40 to 85 Rating Catalog
PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD Only Vin (max) (V) 57 Vin (min) (V) 0 PoE current limit (min) (mA) 405 PoE inrush limit (mA) (typ) (A) Programmable rDS(on) per FET (typ) (mΩ) 580 Features PG, Programmable UVLO, Thermal shutdown Fault response Latch Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) TSSOP (PW) 8 19.2 mm² (3 mm × 6.4 mm)
  • Fully Supports IEEE 802.3af Specification
  • Integrated 0.58-Ω, 100-V, Low-Side Switch
  • 15-kV System Level ESD Capable
  • Supports Use of Low-Cost Silicon Rectifiers
  • Programmable Inrush Current Control
  • Fixed 450-mA Current Limit
  • Fixed and Adjustable UVLO Options
  • Open-Drain, Power-Good Reporting
  • Overtemperature Protection
  • Industrial Temperature Range: –40°C to 85°C
  • 8-Pin SOIC and TSSOP Packages
  • APPLICATIONS
    • VoIP Phones
    • WLAN Access Points
    • Security Cameras
    • Internet Appliances
    • POS Terminals

  • Fully Supports IEEE 802.3af Specification
  • Integrated 0.58-Ω, 100-V, Low-Side Switch
  • 15-kV System Level ESD Capable
  • Supports Use of Low-Cost Silicon Rectifiers
  • Programmable Inrush Current Control
  • Fixed 450-mA Current Limit
  • Fixed and Adjustable UVLO Options
  • Open-Drain, Power-Good Reporting
  • Overtemperature Protection
  • Industrial Temperature Range: –40°C to 85°C
  • 8-Pin SOIC and TSSOP Packages
  • APPLICATIONS
    • VoIP Phones
    • WLAN Access Points
    • Security Cameras
    • Internet Appliances
    • POS Terminals

These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af compliant powered device (PD). The TPS2375 family is a second generation PDC (PD Controller) featuring 100-V ratings and a true open-drain, power-good function.

In addition to the basic functions of detection, classification and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375 has 802.3af compliant UVLO limits, the TPS2377 has legacy UVLO limits, and the TPS2376 has a programmable UVLO with a dedicated input pin.

The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.

Additional resources can be found on the TI Web site www.ti.com.

These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af compliant powered device (PD). The TPS2375 family is a second generation PDC (PD Controller) featuring 100-V ratings and a true open-drain, power-good function.

In addition to the basic functions of detection, classification and undervoltage lockout (UVLO), these controllers include an adjustable inrush limiting feature. The TPS2375 has 802.3af compliant UVLO limits, the TPS2377 has legacy UVLO limits, and the TPS2376 has a programmable UVLO with a dedicated input pin.

The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.

Additional resources can be found on the TI Web site www.ti.com.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS237x: IEEE 802.3af PoE Powered Device Controllers datasheet (Rev. B) 25/04/2008
Nota sobre la aplicación PoE Powered Devices Debug Guidelines PDF | HTML 19/07/2021
Nota sobre la aplicación PoE PD Schematic Review Guidelines PDF | HTML 29/04/2021
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación Lightning Surge Considerations for PoE Powered Devices 30/04/2015
Nota sobre la aplicación Designing an EMI Compliant PoE with Isolated Flyback 20/05/2008
Nota sobre la aplicación Practical Guidelines EMI Compliant PoE 27/03/2008
Nota sobre la aplicación Wall Adapter Powers IEEE 802.3af Powered Device 1/02/2006
Nota sobre la aplicación Powered Device Controllers Comparison 22/04/2004

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

TPS2375EVM — Módulo de evaluación de dispositivos con alimentación PoE IEEE802.3af TPS2375

The HPA028 EVM features the TPS2375 from Texas Instruments Incorporated. The EVM is designed to look like the front end of any Power Over Ethernet (PoE) Powered Device (PD) module. An RJ-45 connector is provided to connect directly to an Ethernet cable having a Power Sourcing Equipment (PSE) (...)

Guía del usuario: PDF
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