The XL2050 A demo board manual provides schematics, pin descriptions, BOM and typical application circuits for the XLSEMI audio power amplifier.
The XL2050 A is an AB‑class single‑channel audio power amplifier packaged in a standard TO220B‑5L case. It includes built‑in over‑power, current‑limit and over‑temperature protection, making it suitable for car audio, stage sound and portable speaker systems.
This manual covers the demo board schematic, a complete bill of materials, pin‑out definitions, physical layout images, and typical single‑supply application circuits. It also gives wiring instructions for connecting audio sources and power supplies.
| Amplifier Class | AB |
|---|---|
| Package | TO220B‑5L |
| Protection Features | Over‑power, current‑limit, over‑temperature |
It has built‑in over‑power protection, current‑limit protection and over‑temperature protection.
Pin 1 is IN+ (audio input), Pin 2 is IN‑ (negative feedback), Pin 3 is VEE (ground), Pin 4 is OUTPUT (amplifier output), and Pin 5 is VCC (positive supply).