Code example or demo
Data sheet
TPS2388
- 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.
Technical documentation
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View all 7 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS2388 IEEE 802.3at 8-Channel Power-over-Ethernet PSE Controller datasheet (Rev. A) | PDF | HTML | 16 Aug 2017 |
| Design guide | 24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multi-port Applic (Rev. A) | 15 Oct 2019 | ||
| EVM User's guide | TPS2388EVM-612: PoE, PSE, TPS2388 Evaluation Module (Rev. C) | 08 May 2019 | ||
| Design guide | SIFOs 802.3at Conformance Report, v 4.1.05, TPS2388 | 23 Aug 2017 | ||
| Test report | University of New Hampshire Interoperability Lab Conformance Test | 23 Aug 2017 | ||
| Test report | University of New Hampshire Interoperability Lab Interoperability Test | 23 Aug 2017 | ||
| Application note | TPS23861 Power-On Considerations | 21 Jul 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS2388EVM-612 — TPS2388 Evaluation Module for IEEE802.3at PoE PSE applications
The TPS2388EVM-612 features the octal channel, TPS2388, IEEE 802.3at PoE PSE controller. The EVM consists of a motherboard (TPS2388EVM-612) and daughter board (TPS2388EVM-016) containing one TPS2388 device. The TPS2388EVM-612 provides a multi-port base platform interface for TPS2388EVM-016, (...)
User guide: PDF
Code example or demo
SLUC640 — TPS2388 PoE MSP430 Reference Code for Multi-Port Power Management Applications
Supported products & hardware
Products
Power sourcing equipment
Hardware development
Evaluation board
GUI for evaluation module (EVM)
SLUC642 — TPS2388EVM GUI
Supported products & hardware
Products
Power sourcing equipment
Hardware development
Evaluation board
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RTQ) | 56 | Ultra Librarian |
Ordering & quality
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