The 8-pin power chip TB6806 is a high-performance primary side controller that provides high precision constant voltage and constant current output performance, especially for low-power off-line charger applications. At the same time, TB6806 also supports quasi-resonant step-down LED constant current, constant voltage output applications, only need to connect the SEL pin short to the GND pin.
In the constant voltage output mode, the chip adopts multi-mode operation mode, that is, amplitude modulation control (AM) and frequency modulation control (FM) are combined, which improves the efficiency and reliability of the system.