The PM8803 is a high-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller.
The PM8803 is a high-efficiency integrated circuit designed for powered devices (PDs) that supports IEEE 802.3at Power over Ethernet (PoE) and PoE+. It combines a standard-compliant PD interface with a current-mode PWM controller to simplify the design of power supply sections. The device successfully performs IEEE 802.3at Layer 1 hardware classification and provides an indication of Type 2 PSE successful detection to the rest of the system.
| Compliance | IEEE 802.3at compliant |
|---|---|
| Hot-swap MOSFET | 100 V, 0.45 Ω, 1 A |
| Inrush current | 140 mA typ. |
| DC current limit | Up to 1A |
The PM8803 is IEEE 802.3at compliant and works with power supplied from Ethernet LAN cables or from local auxiliary sources.
The device works with power supplied from Ethernet LAN cables or from local auxiliary sources.
The PM8803 has an accurate 140 mA typical inrush current level.