TPS23881RTQR Integrated Circuit Chip 8-Channel PoE 2 PSE Controller Power Over Ethernet

TPS23881RTQR 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 valid signature, complete mutual identification, and apply power.

• 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 ±2.5%
• 200-mΩ current sense resistor
• Legacy PD capacitance measurement
• 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
• Noise immune MPS for DC disconnect with 2% current sensing accuracy
• 1- or 3-bit fast port shutdown input
• Auto-class discovery and power measurement
• Inrush and operational foldback protection
• Flexible processor controlled operating modes (Auto, semi auto and manual / diagnostic)
• Per port voltage monitoring and telemetry
• -40°C to +125°C temperature operation

• Video recorder (NVR, DVR, and so forth)
• Small business switch
• Campus and branch switches