Calculation tool
Data sheet
TPS2379
- IEEE 802.3at Type-2 Hardware Classification With
Status Flag - Auxiliary Gate Driver for High-Power Expansion
- Robust 100-V, 0.5-Ω Hotswap MOSFET
- 1A (Typical) Operating Current Limit
- 140 mA (Typical) Inrush Current Limit
- DC-DC Converter Enable
- 15 kV/8 kV System-level ESD Capability
- PowerPAD™ HSOP Package
The TPS2379 device is an 8-pin integrated circuit that contains all of the features needed to implement an IEEE802.3at type-2 powered device (PD) such as Detection, Classification, Type 2 Hardware Classification, and 140-mA inrush current limit during startup. 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 TPS2379 integrates a low 0.5-Ω internal switch to allow for up to 0.85 A of continuous current through the PD during normal operation. The TPS2379 device supports higher-power applications through an external pass transistor. The TPS2379 contains several protection features such as thermal shutdown, current limit foldback, and a robust 100-V internal switch.
Technical documentation
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View all 6 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS2379 IEEE 802.3at PoE High-Power PD Interface With External Gate Driver datasheet (Rev. A) | PDF | HTML | 28 Jul 2015 |
| Application note | PoE Powered Devices Debug Guidelines | PDF | HTML | 19 Jul 2021 | |
| Application note | PoE PD Schematic Review Guidelines | PDF | HTML | 29 Apr 2021 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| Application note | Lightning Surge Considerations for PoE Powered Devices | 30 Apr 2015 | ||
| EVM User's guide | TPS2379EVM-106 Evaluation Module (Rev. A) | 05 May 2014 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS2379EVM-106 — TPS2379 Evaluation Module
The Texas Instruments TPS2379EVM-106 evaluation module is a fully assembled and tested circuit for evaluating the TPS2379 IEEE 802.3at PoE High-Power PD Interface with External Gate Driver.
In need of IEEE802.3bt compliance? Check out the TPS2373
In need of IEEE802.3bt compliance? Check out the TPS2373
User guide: PDF
Simulation model
TPS2379 Unencrypted PSpice Transient Model Package (Rev. A)
SLVM996A.ZIP (30 KB) - PSpice Model
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
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 (...)
Reference designs
PMP7499 — Non-Standard (>25.5W) PoE - High Efficiency Forward Converter (12V@5A) Reference Design
This converter provides a high power PoE output of 12V/5A. The TPS2379 PD controller allows the use of an external hot swap FET for increased efficiency. The UCC2897A PWM controller is used to implement a high efficiency active clamp forward converter.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
Ordering & quality
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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