This document is an engineering report describing a 1.25A, 12V and 0.5A, 5V dual output embedded power supply utilizing the INN2904K, with a 900 V rated MOSFET, from the InnoSwitch-EP family of ICs.
This design shows the high power density and efficiency that is possible due to the high level of integration while still providing exceptional performance.
The document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data.
| Manufacturer | Power Integrations |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | AC/DC SMPS - Multi Output |
| Eval Board Part Number | 596-1592-ND |
| Eval Board Supplier | Power Integrations |
| Eval Board |
Board not Stocked
|
| AC Voltage |
115 V
230 V Universal (115 / 230V) 190 V 208 V 277 V 347 V 380 V 400 V 415 V 480 V |
| Outputs and Type |
2 Isolated
|
| Voltage Out: Highest Current First |
12V, 5V
|
| Current Out |
1.25A, 500mA
|
| Output Power |
17.5 W
|
| Efficiency @ Conditions |
>86%, 230 VAC @ Full Load
>85%, 300 VAC @ Full Load >85%, 265 VAC @ Full Load >84%, 350 VAC @ Full Load >84%, 115 VAC @ Full Load >82%, 85 VAC @ Full Load >81%, 440 VAC @ Full Load >80%, 484 VAC @ Full Load |
| No-load Input Power @ Voltage |
75 mW @ 115 V
260 mW @ 230 V |
| Features |
Light Load Mode
Over Current Protection Over Voltage Protection Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
100 kHz
|
| Internal Switch |
Yes
|
| Component Count + Extras |
58 + 11
|
| Voltage In |
85 ~ 484 V
|
| Application / Target Market |
Power: Auxiliary Power Supply
Power: Industrial Power RF: Metering Set-Top Boxes White Goods |
| Design Author |
Power Integrations
|
| Main I.C. Base Part |
INN2904K
|
| Date Created By Author | |
| Date Added To Library | 2018-05 |
France
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