The SD6800 is an LED driver chip with integrated PFC, fixed on‑time control and precise constant‑current regulation, offering high efficiency for LED bulbs…
The SD6800 LED driver integrates power‑factor correction (PFC) in a primary‑side control architecture. It uses a fixed on‑time control method to achieve PFC and provides accurate constant‑current regulation with high average efficiency. The chip eliminates the need for optocouplers, secondary feedback, and loop compensation, simplifying circuit design and reducing cost.
Typical applications include LED bulbs and AC‑input LED lighting. The device offers features such as low start‑up current, over‑voltage and under‑voltage lockout, over‑temperature protection, per‑cycle current limiting, peak‑current compensation, and LED short‑circuit protection. This manual is written in Chinese.
| Operating temperature range | -40 °C to +125 °C |
|---|---|
| Startup threshold voltage (VCCON) | 14.4 – 17.6 V |
The startup threshold voltage (VCCON) is between 14.4 V and 17.6 V.
The VCC over‑voltage protection threshold (VCCOVP) is typically 23 V, with a maximum of 24.6 V.
The device operates from –40 °C to +125 °C.