This document is an engineering report describing a 5V, 0.55A power supply utilizing a LNK363 in a SO8 package. The design has an USB connector and is intended to be used as a cell phone battery charger or supply for other applications that draw power via a USB port.
The document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data.
The Flyback power supply shown in Figure 3 was designed around the LNK363D (U1). It is a constant voltage constant current (CVCC) power supply intended for use in a Universal Serial Bus (USB) charger.
| 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 |
5 V
|
| Current Out |
550 mA
|
| Output Power |
2.75 W
|
| Features |
Current Limit (Adj. or Fixed)
Frequency Jitter for EMI Open Circuit Protection Short Circuit Protection Thermal Protection |
| Efficiency @ Conditions |
>60%, 100 ~ 220 VAC, 5V @ full load
|
| No-load Input Power @ Voltage |
300 mW @ 230 V
|
| Switching Frequency |
132 kHz
|
| Internal Switch |
Yes
|
| Component Count + Extras |
29 + 6
|
| Voltage In |
90 ~ 264 VAC
|
| Design Author |
Power Integrations
|
| Application / Target Market |
Battery Chargers
Cell Phones |
| Main I.C. Base Part |
LNK363
|
| Date Created By Author | 2007-09 |
| Date Added To Library | 2014-06 |
Denmark
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