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TI TPS23881ARTQR
| Manufacturer | |
| MPN | TPS23881ARTQR |
| LCSC Part # | C2864514 |
| Packaging | VQFN-56(8x8) |
| Customer # | |
| Key Attributes | 4-Pair 8-Channel PoE PSE Controller with SRAM and 200mΩ Current Sense Resistor |
| Datasheet |  TI TPS23881ARTQR |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | TI | |
| Packaging | VQFN-56(8x8) | |
| Features | Overvoltage protection;Undervoltage Protection;Thermal Protection;Overcurrent Protection;PD detection and disconnect identification | |
| Type | Power Sourcing Equipment (PSE) | |
| Voltage - Supply (IC) | 3.3V | |
| Operating Temperature | -40℃~+125℃ | |
| Support PoE standard | IEEE 802.3 bt(PoE++) | |
| number of channels | 8 | |
| Power - Max | 127W |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The TPS23881 is an 8-port Power Sourcing Equipment (PSE) controller designed to deliver power over Ethernet cable in accordance with the IEEE 802.3bt standard. The eight individual power channels can be configured in any combination of 2-pair (single-signature) or 4-pair (dual-signature) PoE ports. The PSE controller can detect PDs with valid signatures, determine their power requirements based on classification, and apply power accordingly.
The TPS23881 improves upon the TPS23880 with reduced current sense resistance, offering more precise programmable power limit, capacitance measurement, and the ability to operate from ROM. The TPS23881 is also compatible with TI's FirmPSE system firmware, which provides a fully configurable solution for controlling multiple TPS23881 devices in a system capable of delivering up to 48 4-pair PoE power ports.
Per-port dedicated ADCs provide continuous port current monitoring and parallel classification measurement for shorter port turn-on times. Programmable port power limits with ±2.5% accuracy support scaling maximum power from 90W to beyond 125W. The 200mΩ current sense resistor and external FET architecture enable designs to balance size, efficiency, thermal management, and solution cost requirements.
Features
- IEEE 802.3bt PSE solution for Type 3 or Type 4 PoE applications
- Eight independent PSE channels
- Optional resistor autonomous operation – no external MCU required
- Compatible with TI FirmPSE system firmware
- SRAM programmable memory
- Programmable power limit accuracy ±2.5%
- 200mΩ current sense resistor
- Legacy PD capacitance measurement
- Optional 2-pair or 4-pair port power allocation – 15.4W, 30W, 45W, 60W, 75W, or 90W
- Single-signature and dual-signature PD compatibility
- Per-port dedicated 14-bit integrating current ADC – noise-immune MPS for DC disconnect
- 2% current sense accuracy
- 1-bit or 3-bit fast port shutdown input
- Auto-class detection and power measurement
- Inrush and operating foldback protection
- Flexible processor-controlled operating modes – auto, semi-auto, and manual/diagnostic
- Per-port voltage monitoring and telemetry
- -40°C to +125°C operating temperature
- Ultra-Low Alpha (ULA) package (TPS23881A)
Applications
- Video recorders (NVR, DVR, etc.)
- Small business switches
- Campus network switches and branch switches
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 7.2238 | $ 7.22 |
| 10+ | $ 6.2538 | $ 62.54 |
| 30+ | $ 5.662 | $ 169.86 |
| 100+ | $ 5.1664 | $ 516.64 |
Standard Packaging2000/Full Reel | ||
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | TI | |
| Packaging | VQFN-56(8x8) | |
| Features | Overvoltage protection;Undervoltage Protection;Thermal Protection;Overcurrent Protection;PD detection and disconnect identification | |
| Type | Power Sourcing Equipment (PSE) | |
| Voltage - Supply (IC) | 3.3V | |
| Operating Temperature | -40℃~+125℃ | |
| Support PoE standard | IEEE 802.3 bt(PoE++) | |
| number of channels | 8 | |
| Power - Max | 127W |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The TPS23881 is an 8-port Power Sourcing Equipment (PSE) controller designed to deliver power over Ethernet cable in accordance with the IEEE 802.3bt standard. The eight individual power channels can be configured in any combination of 2-pair (single-signature) or 4-pair (dual-signature) PoE ports. The PSE controller can detect PDs with valid signatures, determine their power requirements based on classification, and apply power accordingly.
The TPS23881 improves upon the TPS23880 with reduced current sense resistance, offering more precise programmable power limit, capacitance measurement, and the ability to operate from ROM. The TPS23881 is also compatible with TI's FirmPSE system firmware, which provides a fully configurable solution for controlling multiple TPS23881 devices in a system capable of delivering up to 48 4-pair PoE power ports.
Per-port dedicated ADCs provide continuous port current monitoring and parallel classification measurement for shorter port turn-on times. Programmable port power limits with ±2.5% accuracy support scaling maximum power from 90W to beyond 125W. The 200mΩ current sense resistor and external FET architecture enable designs to balance size, efficiency, thermal management, and solution cost requirements.
Features
- IEEE 802.3bt PSE solution for Type 3 or Type 4 PoE applications
- Eight independent PSE channels
- Optional resistor autonomous operation – no external MCU required
- Compatible with TI FirmPSE system firmware
- SRAM programmable memory
- Programmable power limit accuracy ±2.5%
- 200mΩ current sense resistor
- Legacy PD capacitance measurement
- Optional 2-pair or 4-pair port power allocation – 15.4W, 30W, 45W, 60W, 75W, or 90W
- Single-signature and dual-signature PD compatibility
- Per-port dedicated 14-bit integrating current ADC – noise-immune MPS for DC disconnect
- 2% current sense accuracy
- 1-bit or 3-bit fast port shutdown input
- Auto-class detection and power measurement
- Inrush and operating foldback protection
- Flexible processor-controlled operating modes – auto, semi-auto, and manual/diagnostic
- Per-port voltage monitoring and telemetry
- -40°C to +125°C operating temperature
- Ultra-Low Alpha (ULA) package (TPS23881A)
Applications
- Video recorders (NVR, DVR, etc.)
- Small business switches
- Campus network switches and branch switches
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542319090 |
| USHTS | |
| TARIC | |
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542319090 |
| USHTS | |
| TARIC |
| Type | Details |
|---|---|
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS | |