Product Description:

The FT8395xx is a primary feedback control chip for high performance constant voltage and constant current chargers and adapters. The primary feedback topology simplifies circuit design by omitting optocouplers and TL431s, reducing bill of materials costs. 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 through the chip's internal frequency dithering technology.

The FT8395xx provides a very wide range of protection features, 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 loads; and input under-voltage lockout on the FB pin, which enables the system to be shut down quickly in the event of an abnormality, and restarted in time when the abnormality condition 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

Built-in 700V high voltage power switch

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.

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