This engineering report describes an LCD Monitor power supply utilizing the TOPSwitch®-HX TOP256 from Power Integrations Inc.
This report contains the power supply specifications, schematic, bill of materials, transformer documentation, printed circuit board layout, and performance data for this evaluation platform.
This flyback converter configuration, built around the TOP256 (U1), provides two output voltages; a 5 V output and a 15 V output. Each delivers a load current of 2.0 A. This power supply operates using inputs between 90 VAC and 264 VAC. The main output, 5 V, is regulated using voltage reference U3. A small portion of the feedback signal is also derived from the 15 V output.
| Manufacturer | Power Integrations |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | AC/DC SMPS - Multi Output |
| Eval Board |
Board not Stocked
|
| AC Voltage |
115 V
230 V Universal (115 / 230V) |
| Outputs and Type |
2 Isolated
|
| Voltage Out: Highest Current First |
5V, 15V
|
| Current Out |
2A per Channel
|
| Output Power |
40 W
|
| Efficiency @ Conditions |
>82%, 115 ~ 265 VACin
|
| No-load Input Power @ Voltage |
200 mW @ 230 V
|
| Features |
Current Limit (Adj. or Fixed)
Open Circuit Protection Over Voltage Protection Short Circuit Protection Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
119 ~ 145 kHz
|
| Internal Switch |
Yes
|
| Component Count + Extras |
54 + 9
|
| Voltage In |
90 ~ 265 VAC
|
| Application / Target Market |
LCD TV / Monitor
|
| Design Author |
Power Integrations
|
| Main I.C. Base Part |
TOP256
|
| Date Created By Author | 2008-10 |
| Date Added To Library | 2014-06 |
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