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Product details

Parameters

Vin (Min) (V) 8 Vin (Max) (V) 57 PoE current limit (Min) (mA) 1550, 1900 PoE inrush limit (Typ) (mA) 200mA Typ, 335mA Typ rDS(on) per FET (Typ) (mOhms) 100, 300 PoE standards supported 802.3bt Type 3, 802.3bt Type 4 PD power level 13W, 25W, 51W, 71W DC/DC control PD Only Fault response Auto Retry Features Autoclass, Automatic MPS, Inrush delay, Non-standard POE++ compatible, PG, Thermal Shutdown open-in-new Find other Powered devices

Package | Pins | Size

VQFN (RGW) 20 25 mm² 5 x 5 open-in-new Find other Powered devices

Features

  • IEEE 802.3bt (Draft) PD Solution for Type 3 or Type 4 PoE
  • Supports Power Levels for Type-4 ( TPS2372-4) 90-W and Type-3 ( TPS2372-3) 60-W Operation
  • Robust 100 V Hotswap MOSFET
    • TPS2372-4 (typ.): 0.1-Ω, 2.2-A Current Limit
    • TPS2372-3 (typ.): 0.3-Ω, 1.85-A Current Limit
  • Allocated Power Indicator Outputs
  • PG Output with Inrush Completion Delay
    • Compliant to PSE Inrush
  • Automatic Maintain Power Signature (MPS)
    • Auto-adjust MPS for Type 1-2 or 3-4 PSE
    • Supports Ultra-Low Power Standby Modes
  • Supports Autoclass Operation
  • Supports PoE++ PSE
  • -40°C to 125°C Junction Temperature Range
  • 20-lead VQFN Package

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Description

The TPS2372 contains all of the features needed to implement an IEEE802.3at or IEEE802.3bt (draft) (Type 1-4) powered device (PD). The low internal switch resistance allows the TPS2372-4 and TPS2372-3 to support high power applications up to 90 W and 60 W respectively. Assuming 100-meter CAT5 cable, this translates into 71.3 W and 51 W at PD input.

The TPS2372 operates with enhanced features.

The Automatic MPS function enables applications requiring very low power standby modes. The TPS2372 automatically generates the necessary pulsed current to maintain the PSE power. An external resistor is used to enable this functionality and to program the MPS pulsed current amplitude.

The TPS2372 also implements a delay function to allow the remote PSE to complete its inrush phase before releasing the Power Good (PG) output. This ensures that the IEEE802.3bt (draft) startup requirements are met.

The Autoclass enable input also allows advanced system power optimization modes compliant with IEEE802.3bt (draft) standard.

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Similar but not functionally equivalent to the compared device:
NEW TPS23730 ACTIVE IEEE 802.3bt type-3 class 1-6 PoE 2 PD with high efficiency DC-DC controller This product integrates the DC-DC controller and is recommended for up to 51W applications.
TPS23881 ACTIVE 4-pair, type-4, 8-channel Power-over-Ethernet (PoE) PSE with 200mΩ RSENSE This product is an IEEE802.3bt-ready PSE controller.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS2372 High-Power PoE PD Interface with Automatic MPS and Autoclass datasheet (Rev. B) Oct. 19, 2018
Application note How to Identify Allocated Power at PD Through TPH, TPL, and BT Pins Jul. 21, 2020
Technical articles Delivering a smooth transition from AC to PoE power Nov. 01, 2018
Technical articles Key considerations for designing with the new PoE standard Jul. 16, 2018
Technical articles The new PoE standard: It’s almost here Jun. 06, 2018
Technical articles Less (standby) power and more light May 09, 2018
Application note Beyond BT High-Power PoE Solution using the TPS23880 and TPS2372-4 Apr. 17, 2018
User guide TPS2372-3EVM-757 Evaluation Module Dec. 22, 2017
User guide TPS2372-4EVM-006 Evaluation Module (Rev. A) Sep. 18, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
175
Description
The TPS2372-3EVM-757 evaluation module contains design and reference circuitry for the TPS2372, which is a IEEE802.3bt Type 3 PoE PD controller suitable for high power PoE PD Lighting applications.

In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.
Features
  • IEEE802.3bt compliant PoE PD
  • Automatic MPS
  • Inrush Delay
  • AutoClass
EVALUATION BOARD Download
149
Description

The TPS2372 evaluation module (TPS2372-4EVM-006) contains evaluation and reference circuitry for the TPS2372, which is a IEEE802.3bt PoE PD controller suitable for high power PoE PD applications such as LED lighting and modules.

In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23880 (...)

Features
  • IEEE802.3bt compliant PoE PD
  • Automatic MPS
  • Inrush Delay
  • AutoClass

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
GERBER FILE Download
SLVC707.ZIP (485 KB)

Reference designs

REFERENCE DESIGNS Download
Connected LED Lighting With IEEE802.3bt Power Over Ethernet (PoE) Reference Design
TIDA-01463 — This Power over Ethernet (PoE) reference design supplies power and data over a single Ethernet cable to a connected LED lighting ballast. This reference design uses TI's TPS2372-4 PoE powered device (PD) interface, LM3409 buck controller, LM5165 buck converter, TPS62740 buck converter, TM4C1292NCPDT (...)
document-generic Schematic
REFERENCE DESIGNS Download
Dual-input redundant PoE PD with smooth transition reference design
PMP20859 — This reference design implements an IEEE802.3bt (draft) Power over Ethernet (PoE) Powered Device (PD) with dual redundant inputs and a smooth transition between these inputs and an auxiliary input.  The design consists of a 5V/6A synchronous flyback converter and allows for up to three (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
VQFN (RGW) 20 View options

Ordering & quality

Information included:
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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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