Product Description:

The FT8395M is a primary feedback control chip for high performance constant voltage and constant current chargers and devices. The primary feedback topology simplifies circuit design by omitting the optocoupler and TL431, which reduces the bill of materials cost. The chip operates in quasi-resonant (QR) and adaptive PFM modes, enabling the system to meet Class 6 energy efficiency standards, and EMI handling is made easier by the chip's internal frequency dithering technology.

FT8395M provides very many protection functions, such as cycle-by-cycle peak current limiting and constant current control to ensure over-current protection, over-temperature protection and over-voltage protection under heavy load; FB pin input under-voltage lockout, which enables the system to be shut down quickly in the event of an abnormality, and restarted in a timely manner when the abnormality is lifted.

Product features:

Primary feedback, can save optocoupler and TL431

High precision constant voltage/current output                        

Adopt PFM and quasi-resonant QR mode, meet the energy efficiency of class 6

Excellent output ripple characteristics, no audio noise, capacitive load starting characteristics

Built-in dither function to improve EMI characteristics

Externally adjustable output line loss compensation

Built-in input line voltage compensation

Cycle-by-cycle peak current limiting, VCC overvoltage/undervoltage protection, over-temperature protection, open-loop protection, output short-circuit protection.