This engineering report describes a non-isolated 14 W output and high-line input voltage range (195 VAC–265 VAC) power supply utilizing the TNY279GN for an LED lighting application.
The LED array and enclosure were designed to provide safety isolation to the end user. Therefore the output of this design is not electrically isolated from the AC input.
This document contains the complete specification of the power supply, a detailed circuit diagram, the entire bill of materials required to build the supply, the transformer design, the test data, and the oscillographs of the power supply’s most important electrical waveforms.
| Manufacturer | Power Integrations |
|---|---|
| Category | Lighting |
| Sub-Category | LED Drivers - AC / Offline |
| Eval Board |
Board not Stocked
|
| AC Voltage |
230 V
|
| Outputs and Type |
1 Non-Isolated
|
| Current Out |
700 mA
|
| Voltage Out (Max) |
20 V
|
| Efficiency @ Conditions |
>87%, 195 ~ 265 VAC, full load
|
| Features |
Current Limit (Adj. or Fixed)
Open Circuit Protection Over Voltage Protection Short Circuit Protection Shutdown, Enable, Standby Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
132 kHz
|
| Component Count + Extras |
31 + 0
|
| Design Author |
Power Integrations
|
| Application / Target Market |
Lighting: LED Commercial Lighting
Lighting: LED Street Lighting |
| Voltage In |
195 ~ 265 VAC
|
| Power Factor | |
| Standard(s) | |
| Main I.C. Base Part |
TNY279
|
| Date Created By Author | 2008-04 |
| Date Added To Library | 2020-05 |
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