TPS23880 Type-4 4-Pair 8-Channel PoE 2 PSE Controller with Programmable SRAM

1 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
Never Fooled 4-Point detection
Inrush and operational foldback protection
425-mA and 1.25-A Selectable current limits
Port re-mapping
8-Bit or 16-bit I²C communication
Flexible processor controlled operating modes
- Auto, semi auto and manual / diagnostic
Per Port voltage monitoring and telemetry
–40°C to +125°C Temperature operation