TK5401 is an LED driver power IC that does not require the electrolytic capacitor necessary for DC power supply characteristics. It uses a built-in high-voltage power MOS tube and control circuit to achieve miniaturization and low cost, while also ensuring the long life and high efficiency of LED lights.
The TK5401 is an LED driver power‑supply IC that integrates a high‑voltage MOSFET and control circuitry, eliminating the need for external electrolytic capacitors and enabling compact, low‑cost designs with long LED life and high efficiency. The device supports a wide AC input range and includes built‑in over‑voltage, over‑current, and thermal protection features.
The manual covers upgrade history, functional description, pinout, package dimensions, electrical characteristics, typical application circuits, PCB layout guidelines, and safety warnings. It also provides reference curves for MOSFET breakdown, energy loss, and power dissipation to aid designers in implementing the IC safely. This manual is written in Chinese.
| Supply voltage (Vcc) | 32 V |
|---|---|
| Typical switching frequency | 67 kHz |
The device is specified for a supply voltage (Vcc) of 32 V.
The typical oscillation frequency is about 67 kHz.