This demonstration board introduces a solution for industrial power supplies. It takes advantage of the high voltage Power MOSFET, i.e. 1500 V breakdown voltage, to optimize the operation of the flyback converter based on the primary controller UC3844B.
The demonstration board has been designed and developed in order to address medium power applications. The board features two outputs, 24 V, 5V or 3.3 V, and is able to deliver more than 100 W in total.
The 5 V/3.3 V output is obtained by means of an integrated DC-DC converter based on L5970D, connected to the 24 V output, and adjustable by means of an external voltage divider.
| Manufacturer | STMicroelectronics |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | AC/DC SMPS - Multi Output |
| Eval Board Part Number | 497-8849-ND |
| Eval Board Supplier | STMicroelectronics |
| Eval Board |
Board not Stocked
|
| AC Voltage |
230 V
|
| Outputs and Type |
2 Isolated
|
| Voltage Out: Highest Current First |
24V, 3.3V or 5V
|
| Current Out |
4A, 1A (Max 100W)
|
| Output Power |
100 W
|
| Efficiency @ Conditions |
>74%, 230V in, 24V @ 1.5 ~ 4 A
|
| No-load Input Power @ Voltage |
- Not Given
|
| Features | |
| Switching Frequency |
500 kHz
|
| Internal Switch |
No
|
| Component Count + Extras |
69 + 5
|
| Voltage In |
180 ~ 265 or 320 ~ 480 VAC
|
| Application / Target Market |
Set-Top Boxes
|
| Design Author |
STMicroelectronics
|
| Main I.C. Base Part |
STW9N150
UC3844B |
| Date Created By Author | |
| Date Added To Library | 2011-03 |
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