Key facts
- Brand
- Power integrations
- Model
- LNK500
- Category
- Power Management
- Industry
- Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2000-01-01
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Power Integrations LNK500 Product Manual
This manual describes the LNK500 constant‑voltage/constant‑current controller, covering its functional description, pin assignments, and internal current‑limit circuitry. It explains both CV (constant‑voltage) and CC (constant‑current) operation modes, auto‑restart behavior, and typical performance characteristics.
Key specifications such as input voltage range, output power, switching frequency, and efficiency are listed, along with design notes, typical application circuits, and safety warnings. The document also includes a notes section and contact information for Power Integrations support.
Power integrations LNK500 specifications
| Output Power | 2.75 W |
|---|---|
| Efficiency | ≥ 72 % |
| No‑Load Consumption (230 VAC) | 260 mW |
| No‑Load Consumption (115 VAC) | 200 mW |
| CV Accuracy | ± 10 % |
| CC Accuracy (LNK501) | ± 20 % |
| CC Accuracy (LNK500) | ± 25 % |
| Switching Frequency | 42 kHz |
| Minimum Component Count | 14 |
All Power integrations LNK500 documents by type
How to use the product for one specific task, with worked examples.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the typical efficiency of a LinkSwitch‑based power supply?
Typical efficiency is 72 % or higher.
How many components are required for a basic LinkSwitch circuit?
A basic design can be built with as few as 14 components.
What is the input voltage range of the LNK500?
The device operates from 85 VAC up to 265 VAC.
What is the typical output power of the LNK500?
Typical output power is 2.75 W.