PTPS23881ARTQT Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
PTPS23881ARTQT is a high-power 8-channel Power-over-Ethernet PSE controller from Texas Instruments featuring a 200 mΩ integrated sense resistor for accurate port current measurement. It supports IEEE 802.3bt high-power PoE and fits in a 56-pin QFN package for compact network switch and injector designs.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 57
- Lifecycle
- OBSOLETE
- Datasheet
- PTPS23881ARTQT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTPS23881ARTQT?
- 8-channel PoE PSE controller with integrated 200 mΩ current sense resistor per port, eliminating external sense components and reducing BOM cost for high-density PoE switches
- Supports IEEE 802.3bt Type 3 and Type 4 high-power PoE delivering up to 90 W per port for powering PTZ cameras, Wi-Fi 6 APs, and industrial IoT devices
- Adjustable current thresholds with per-port power management and I2C/SPI telemetry in a 56-pin QFN, enabling precise power budget control in 8-port managed PoE switch designs
What is PTPS23881ARTQT used for?
The PTPS23881ARTQT is designed for managed PoE switch and midspan injector applications where 8 ports must independently deliver up to 90 W of IEEE 802.3bt power to high-power endpoints such as PTZ cameras, outdoor Wi-Fi 6 access points, and industrial display terminals. Its integrated current sensing and adjustable thresholds simplify per-port power management and over-current protection without external components. The device is also well suited for PoE-enabled industrial IoT gateways and smart building control panels requiring multi-port power delivery in a compact 56-pin QFN footprint.
What are the specifications of PTPS23881ARTQT?
| Date Of Intro | 2019-06-16 |
| YTEOL | 0 |
| Additional Feature | ALSO REQUIRE 3V TO 3.6V SUPPLY VOLTAGE |
| Adjustable Threshold | YES |
| Analog IC - Other Type | PoE POWERED DEVICE CONTROLLER |
| JESD-30 Code | S-PQCC-N56 |
| Number of Channels | 8 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Current-Max (Isup) | 12.5mA |
| Supply Voltage-Max (Vsup) | 57V |
| Supply Voltage-Min (Vsup) | 44V |
| Supply Voltage-Nom (Vsup) | 54V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PTPS23881ARTQT datasheet?
PTPS23881ARTQT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTPS23881ARTQT?
Compatible alternatives and drop-in replacements for PTPS23881ARTQT:
Frequently Asked Questions
How many PoE ports does PTPS23881ARTQT control and what is the maximum power per port?
PTPS23881ARTQT controls 8 independent PoE PSE ports. When configured for IEEE 802.3bt Type 4 operation, each port can deliver up to 90 W to a powered device (PD), making it suitable for high-power endpoints such as PTZ cameras drawing 60 W to 90 W and Wi-Fi 6E access points consuming 30 W to 60 W in enterprise and industrial network deployments.
What is the purpose of the integrated 200 mΩ sense resistor in PTPS23881ARTQT and how does it improve accuracy?
The integrated 200 mΩ current sense resistor in PTPS23881ARTQT allows the IC to measure per-port current with consistent accuracy without requiring an external sense resistor on each channel. Eliminating 8 external resistors reduces BOM cost, simplifies PCB layout, and removes resistor tolerance variation that would otherwise introduce up to ±5% current measurement error in tightly managed PoE power budgets.
Which package does PTPS23881ARTQT use and how does it suit compact PoE switch PCB layouts?
PTPS23881ARTQT is housed in a 56-pin square QFN (S-PQCC-N56) package with an exposed thermal pad on the bottom. This compact footprint enables all 8 PoE channels to be integrated onto a single IC, reducing board area compared to multi-chip PSE solutions and improving thermal dissipation through the PCB ground plane in PoE switch designs dissipating 5 W to 15 W at full load.
What supply voltage does PTPS23881ARTQT require for its logic interface and control circuitry?
PTPS23881ARTQT requires a 3 V to 3.6 V logic supply voltage for its digital control and I2C communication interfaces, in addition to the 48 V to 57 V PoE bus voltage for port power delivery. This dual-supply architecture is standard in IEEE 802.3bt PSE designs, where the 3.3 V rail powers the controller logic while the high-voltage bus powers the 8 Ethernet port outputs.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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