TPS23882RTQT
ActiveTYPE-3, 2-PAIR, 8-CHANNEL POE PSE CONTROLLER WITH SRAM AND 200-MΩ RSENSE
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TPS23882RTQT
ActiveTYPE-3, 2-PAIR, 8-CHANNEL POE PSE CONTROLLER WITH SRAM AND 200-MΩ RSENSE
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS23882RTQT |
|---|---|
| Auxiliary Sense | False |
| Current - Supply | 10 mA |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Number of Channels | 8 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 56-VFQFN Exposed Pad |
| Power - Max [Max] | 30 W |
| Standards | 802.3bt, 802.3at (PoE+), 802.3af (PoE) |
| Supplier Device Package | 56-VQFN (8x8) |
| Type | Controller (PSE) |
| Voltage - Supply [Max] | 3.6 V |
| Voltage - Supply [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 8.88 | |
| 10 | $ 8.02 | |||
| 25 | $ 7.65 | |||
| 100 | $ 6.64 | |||
| Digi-Reel® | 1 | $ 8.88 | ||
| 10 | $ 8.02 | |||
| 25 | $ 7.65 | |||
| 100 | $ 6.64 | |||
| Tape & Reel (TR) | 250 | $ 6.34 | ||
| 500 | $ 5.78 | |||
| 1250 | $ 5.04 | |||
| Texas Instruments | SMALL T&R | 1 | $ 6.80 | |
| 100 | $ 5.54 | |||
| 250 | $ 4.36 | |||
| 1000 | $ 3.69 | |||
Description
General part information
TPS23882B Series
The TPS23882B is an 8-channel power sourcing equipment (PSE) controller engineered to insert power onto Ethernet cables in accordance with the IEEE 802.3bt standard. The PSE controller can detect powered devices (PDs) that have a valid signature, complete mutual identification, and apply power.
The TPS23882B improves on the TPS2388 with reduced current sense resistors, SRAM programmability, programmable power limiting, capacitance measurement, and compatibility with TI’sFirmPSEsystem firmware (seeDevice Comparison Table).
Programmable SRAM enables in-field firmware upgradability over I2C to ensure IEEE compliance and interoperability with the latest PoE enabled devices. Dedicated per port ADCs provide continuous port current monitoring and the ability to perform parallel classification measurements for faster port turn on times. A 1.25-A port current limit and adjustable power limiting allows for the support of non-standard applications above 60-W sourced. The 200-mΩ current sense resistor and external FET architecture allow designs to balance size, efficiency, thermal and solution cost requirements.
Documents
Technical documentation and resources
