This file is a description document for DC2093A. DC2093A is LT4275/LT4321 LTPoE++/IEEE 802.3at/ IEEE 802.3af Compliant Powered Device Interface Demonstration circuit
This document provides setup and operation instructions for the DC2093A demonstration circuit, which includes LT4275 and LT4321 controllers for PoE applications. Three versions (A, B, C) support different power levels and standards including LTPoE++, IEEE 802.3at, and IEEE 802.3af. The manual includes quick start procedures for each version, connection diagrams, and specifications for power delivery and efficiency. It also covers auxiliary power support and classification signaling for PoE power levels.
| Maximum Power Level (DC2093A-A) | 90W |
|---|---|
| Efficiency (DC2093A-A) | 99.2% (Typical) |
| Power Good Indicator | Yes |
| PSE Type Indicator | Yes (DC2093A-A and B) |
The DC2093A-A supports LTPoE++ power levels of 38.7W, 52.7W, 70W, and 90W, as well as IEEE 802.3at (25.5W) and IEEE 802.3af (13W).
The DC2093A-B is compliant with IEEE 802.3at and IEEE 802.3af specifications and supports a maximum power level of 25.5W, while the DC2093A-A supports up to 90W.
The DC2093A-C has a typical efficiency of 98.5% at 48V and 350mA load.