FT8395 is a primary feedback control chip used in high-performance constant voltage and constant current chargers and adapters. The primary feedback topology simplifies circuit design, eliminating the need for optocouplers and TL431, thus reducing material costs. The chip operates in quasi-resonant (QR) and adaptive PFM modes, enabling the system to meet Level VI energy efficiency standards. Internal frequency dithering technology simplifies EMI processing. FT8395 provides numerous protection features, such as cycle-by-cycle peak current limiting and constant current control to ensure overcurrent protection under heavy loads, overtemperature protection, and overvoltage protection; undervoltage lockout on the FB pin allows the system to quickly shut down in case of anomalies and restart promptly once the anomaly is resolved.

Product Introduction:

The FT8395 is a primary-side feedback control chip used in high-performance constant voltage and constant current chargers and adapters. The primary-side feedback topology simplifies circuit design, eliminating the need for optocouplers and TL431, thus reducing material costs. The chip operates in quasi-resonant (QR) and adaptive PFM modes, enabling the system to meet Level VI energy efficiency standards. Internal frequency dithering technology simplifies EMI processing.

The FT8395 offers numerous protection features, such as cycle-by-cycle peak current limiting and constant current control to ensure overcurrent protection under heavy loads, overtemperature protection, and overvoltage protection; undervoltage lockout on the FB pin allows the system to quickly shut down in case of anomalies and restart promptly once the anomaly is resolved.

Product Features:

• Primary-side feedback, eliminating the need for optocouplers and TL431
• High-precision constant voltage/constant current output
• Uses PFM and quasi-resonant QR modes, meeting Level VI energy efficiency
• Excellent output ripple characteristics, no audio noise, capacitive load start-up characteristics
• Built-in frequency dithering 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, overtemperature protection, open-loop protection, output short-circuit protection.