TPS23880 - Texas Instruments

TPS23880 Type-4 4-Pair 8-Channel PoE 2 PSE Controller

The TPS23880 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 eight individual power channels can be configured in any combination of 2-Pair (1-channel) or 4-Pair (2-channels) PoE Ports. The PSE controller can detect powered devices (PDs) that have a v.

Features

• IEEE 802.3bt PSE solution for PoE 2 Type 3 or Type 4 Power Over Ethernet applications
• Eight independent PSE channels
• SRAM Programmable memory
• Programmable power limiting accuracy ±3%
• Selectable 2-pair or 4-pair port power allocations
  – 15.4 W, 30 W, 45 W, 60 W, 75 W or 90 W
• Single and dual signature PD compatibility
• Dedicated 14-bit integrating current ADC per port
  – Inherent filtering
  – Noise immune MPS for DC disconnect
  – 2% Current sensing accuracy
  – 100-ms Rolling port current averaging
• 1- or 3-Bit fast port shutdown input
• Auto-class discovery and power measurement
• Neve.