IEEE 802.3at PoE High-Power PD interface with AUX Control
Product details
Parameters
Package | Pins | Size
Features
- IEEE 802.3at Type-2 Hardware Classification with Status Flag
- Adapter Priority Input
- DC/DC Converter Enable
- Robust 100 V, 0.5-Ω Hotswap MOSFET
- Operating Current up to 850 mA
- 1-A (Typical) Operating Current Limit
- 15 kV and 8 kV System-level ESD Capability
- PowerPAD HSOP Package
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Description
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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS2378 IEEE 802.3at PoE High-Power PD Interface datasheet (Rev. C) | Jul. 23, 2015 |
Selection guide | Power Management Guide 2018 (Rev. R) | Jun. 25, 2018 | |
User guide | TPS2378EVM-602 Evaluation Module User's Guide (Rev. A) | Jul. 31, 2017 | |
Application note | Dual TPS2378 PD for 51-W High-Power Four-Pair PoE (Rev. A) | Jun. 01, 2016 | |
Technical articles | May the forced UPOE be with you | Jun. 15, 2015 | |
Application note | Lightning Surge Considerations for PoE Powered Devices | Apr. 30, 2015 | |
Technical articles | Simplifying higher current split-rail designs with Fly-Buck converters | Mar. 05, 2015 | |
Technical articles | Watch your Power over Ethernet OPEX or risk obsolescence! | Oct. 09, 2012 | |
User guide | TPS2378EVM-105 User's Guide | Mar. 20, 2012 | |
Application note | Advanced Adapter ORing Solutions using the TPS23753 (Rev. A) | Feb. 09, 2009 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- 100 V, 0.5 ⦠Hotswap MOSFET
- 15 kV/8 kV System-Level ESD Capability
- DC/DC Converter Enable
- PowerPad⢠SO-8 Package
- Adapter Priority Input
- IEEE 802.3at type-2 hardware classification with status flag
Description
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 (...)
Features
- 51W High Power 4-Pair PoE (Forced UPOE)
- Logic circuitry keeps converter off until both TPS2378 PDs are powered
- MPS circuit keep PSE ports connected until converter startup
- Load inhibitor circuit (optional) for high power resistive loads
Design tools & simulation
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
- (...)
Reference designs
Design files
-
download PMP10812 BOM.pdf (102KB) -
download PMP10812 Assembly Drawing.pdf (70KB) -
download PMP10812 PCB.pdf (445KB) -
download PMP10812 CAD Files.zip (447KB) -
download PMP10812 Gerber.zip (303KB) -
download PMP10812 Gerber (ODB).zip (787KB)
Design files
-
download PMP11257 BOM.pdf (127KB) -
download PMP11257 Assembly Drawing.pdf (186KB) -
download PMP11257 Gerber.zip (486KB)
Design files
-
download TIDA-00741 BOM.pdf (253KB) -
download TIDA-00741 Gerber (from TIDA-00539).zip (2914KB)
Design files
-
download PMP9676 BOM.pdf (95KB) -
download PMP9676 Gerber.zip (638KB)
Design files
-
download TIDA-00539 BOM.pdf (252KB) -
download TIDA-00539 Gerber.zip (2922KB)
Design files
-
download PMP10572 BOM.pdf (101KB) -
download PMP10572 Gerber.zip (50KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SO PowerPAD (DDA) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- 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.
Support & training
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