Summary:
Flyback converters using LinkSwitch-LP have an output VI characteristic similar to an unregulated power transformer power supply, but their output current is limited so that they do not exceed the maximum rated output power (peak power point). This power adapter is designed using the LinkSwitch-LP family of devices, the LNK564P.
design feature
- Low cost, low component count -14-17 components
- Patented IC design and transformer winding technology enables simple clampless design using a simple FilterfuseTM input stage (Clampless?)
- ±5% accuracy over-temperature protection threshold - self-recovery with hysteresis - to ensure PCB board temperature is within safe limits
- Automatic restart: protection when output short circuit and loop open loop
- IC creepage distance is greater than 3.2 mm: Prevent arcing in high humidity applications
- Easily meet all external power (EPS) energy efficiency standards
- Have sufficient margin to meet CISPR-22 Class B EMI requirements
2W charger PCB physical map
2W charger circuit diagram
2W charger PCB layout
2W charger component list
See the uploading documentation for details (click to download)
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