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TPS2388

AKTIV

PoE-PSE, 2 Paare, Typ 2, 8 Kanäle

Produktdetails

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.

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TPS23881 AKTIV PoE PSE Typ 4 für 4 Adernpaare und 8 Kanäle mit 200 mΩ RSENSE  This product is an IEEE802.3bt-ready PSE controller.

Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TPS2388 IEEE 802.3at 8-Channel Power-over-Ethernet PSE Controller datasheet (Rev. A) PDF | HTML 16.08.2017
Designleitfaden 24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multiport Applications (Rev. C) PDF | HTML 31.03.2026
Designleitfaden SIFOs 802.3at Conformance Report, v 4.1.05, TPS2388 23.08.2017
Anwendungshinweis TPS23861 Power-On Considerations 21.07.2015

Design und Entwicklung

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Evaluierungsplatine

TPS2388EVM-612 — TPS2388 Evaluierungsmodul für IEEE802.3at PoE PSE-Anwendungen

Das TPS2388EVM-612 verfügt über den achtkanaligen, IEEE 802.3at-konformen PoE-PSE-Controller TPS2388. Das EVM besteht aus einer Hauptplatine (TPS2388EVM-612) und einer Tochterplatine (TPS2388EVM-016), die über einen TPS2388-Baustein verfügt. Das TPS2388EVM-612 bietet eine grundlegende (...)
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Codebeispiel oder Demo

SLUC636 — TPS2388 PoE MSP430 Reference Code for Basic Applications

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Codebeispiel oder Demo

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

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GUI für Evaluierungsmodul (EVM)

SLUC642 — TPS2388EVM GUI

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VQFN (RTQ) 56 Ultra Librarian

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