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This 8-pin integrated circuit contains all of the features needed to implement an IEEE802.3at type-2 powered device (PD). The low 0.5-Ω internal switch resistance, combined with the enhanced thermal dissipation of the PowerPAD™ package, enables this controller to continuously handle up to 0.85 A. The TPS2378 features an auxiliary power detect (APD) input, providing priority for an external power adapter. It also features a 100-V pass transistor, 140-mA inrush current limiting, type-2 indication, auto-retry fault protection, and an open-drain power-good output.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TPS2378 IEEE 802.3at PoE High-Power PD Interface datasheet (Rev. C) | PDF | HTML | Jul 23, 2015 |
| Application note | PoE Powered Devices Debug Guidelines | PDF | HTML | Jul 19, 2021 | |
| Application note | PoE PD Schematic Review Guidelines | PDF | HTML | Apr 29, 2021 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | Jun 25, 2018 | ||
| Application note | Dual TPS2378 PD for 51-W High-Power Four-Pair PoE (Rev. A) | Jun 1, 2016 | ||
| Technical article | May the forced UPOE be with you | PDF | HTML | Jun 15, 2015 | |
| Application note | Lightning Surge Considerations for PoE Powered Devices | Apr 30, 2015 | ||
| Application note | Advanced Adapter ORing Solutions using the TPS23753 (Rev. A) | Feb 9, 2009 |
For additional terms or required resources, click any title below to view the detail page where available.
The TPS2378EVM-602 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the dual TPS2378 four-pair, high power 51W applications. The TPS2378EVM-602 is a Forced UPOE compliant solution that requires no software. The EVM contains header connectors for easy connection to (...)
The PMP10572 reference design is an single output isolated Fly-Buck power supply for PoE application. It takes 48V nominal input and provides 12V 1A output. The board is designed with TPS2378(PD controller) to provide 40V-57V input votlage and 12V 1SA output power. The design features the LM5160A (...)
This converter is used for Class 1 PoE PD applications where isolation is not required. The TPS2378 PD controller plus LM5006 buck converter provide 5V/560mA with good efficieny in a small size. The LM5006 can be configured with a diode rectifier for lowest cost or a synchronous FET (...)
TIDA-00539 uses two TPS2378 PD controllers for a forced 4-pair UPOE solution to 51W non-standard PoE PD applications. It incorportates the UCC2897A controller in a high-efficiency, great transient response (driven) synch flyback converter capble of 19V at 2.3A.
TIDA-00741 uses two TPS2378 PD controllers for a forced 4-pair UPOE solution to 51W non-standard PoE PD applications. It incorportates the UCC2897A controller in a high-efficiency, great transient response (driven) synch flyback converter capble of 12V at 3.8A.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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