This document is an engineering report describing a Power over Ethernet (PoE) power supply utilizing TOP246P. The power supply delivers 21.7 W continuous from an input of 85 to 265 VAC.
This document provides complete design information including specification, schematic, bill of material and transformer design and construction information. The document also provides performance information.
Although this board is designed to satisfy safety isolation requirements, the engineering prototype has not been agency approved. Therefore, all testing should be performed using an isolated source to provide power to the prototype board.
| Manufacturer | Power Integrations |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | AC/DC SMPS - Single Output |
| Eval Board |
Board not Stocked
|
| AC Voltage |
115 V
230 V Universal (115 / 230V) |
| Outputs and Type |
1 Isolated
|
| Voltage Out |
48 V
|
| Current Out |
450 mA
|
| Output Power |
21.7 W
|
| Features |
Current Limit (Adj. or Fixed)
Frequency Jitter for EMI Over Voltage Protection Short Circuit Protection Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Efficiency @ Conditions |
>75%, 85 VAC, 48V @ 4.9 ~ 21.7 W
>75%, 265 VAC, 48V @ 9.8 ~ 21.7 W >75%, 230 VAC, 48V @ 7.8 ~ 21.7 W >75%, 115 VAC, 48V @ 7.1 ~ 21.7 W |
| No-load Input Power @ Voltage |
- Not Given
|
| Switching Frequency |
132 kHz
|
| Internal Switch |
Yes
|
| Component Count + Extras |
43 + 4
|
| Voltage In |
85 ~ 265 VAC
|
| Design Author |
Power Integrations
|
| Application / Target Market |
PoE, Power Over Ethernet
Power: AC Adapters |
| Main I.C. Base Part |
TOP246
|
| Date Created By Author | 2005-09 |
| Date Added To Library | 2014-07 |
France
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