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Non-isolated (Low PFC+Dimming)

FT8852x is one kind of non-isolated low PF constant current driver, which has self-power supply structure and no need feedback winding, no need opto-coupler and 431, enjoying simple and low BOM cost. Besides, the driver is working is BCM mode and has linear dimming function, built-in power switch and can meet various dimming LED application of 5~50W.

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Part No. Topology Max V/Pout 90V-265V Power Device CC Package Feature
FT8852A Buck 18W Internal NPN ±3% SOP8 Linear Dimming

Product Profile :

FT8852x is optimized for low cost non-isolated Buck switching mode LED driver applications. It operates in inductor current boundary conduction mode. With source driving architecture, special demagnetization sensing technology and the ultra low operating current, FT8852x doesn’t need the auxiliary winding for output current sensing and chip power supplying. FT8852x also integrates a 700V power NPN that further improves the system reliability and lowers the system cost and complexity. 

Its highly integrated functions such as Leading Edge Blanking (LEB) and built-in line compensation offer users a high efficiency and low cost solution for constant current LED driver applications.  

The multi-protection function of FT8852x greatly enhances the system reliability and safety. FT8852x offers fruitful protections like LED open and short circuit protection, over temperature compensation, CS resistor short circuit protection. 

The industry leading OVP voltage accuracy ensures the best LED open circuit protection.

Feature :

PWM dimming support

No Auxiliary winding for sensing and supplying 

Inductor current boundary conduction mode(BCM)

Constant current control without secondary sense and feedback circuit

Built-in 700V Power NPN

High efficiency with ±3% LED current accuracy

Ultra low operating current for high efficiency

Excellent line and load regulations

Cycle-by-Cycle current limiting

Fixed OVP voltage for  LED open circuit protection

LED short circuit protection

Over temperature compensation

CS resistor short circuit protection.

VCC under-voltage lockout

Available in SOP8 and DIP8 packages


More details
FT8852C Buck 30W Internal NPN ±3% SOP8 Linear Dimming

Product Profile :

FT8852x is optimized for low cost non-isolated Buck switching mode LED driver applications. It operates in inductor current boundary conduction mode. With source driving architecture, special demagnetization sensing technology and the ultra low operating current, FT8852x doesn’t need the auxiliary winding for output current sensing and chip power supplying. FT8852x also integrates a 700V power NPN that further improves the system reliability and lowers the system cost and complexity. 

Its highly integrated functions such as Leading Edge Blanking (LEB) and built-in line compensation offer users a high efficiency and low cost solution for constant current LED driver applications.  

The multi-protection function of FT8852x greatly enhances the system reliability and safety. FT8852x offers fruitful protections like LED open and short circuit protection, over temperature compensation, CS resistor short circuit protection. 

The industry leading OVP voltage accuracy ensures the best LED open circuit protection.

Feature :

PWM dimming support

No Auxiliary winding for sensing and supplying 

Inductor current boundary conduction mode(BCM)

Constant current control without secondary sense and feedback circuit

Built-in 700V Power NPN

High efficiency with ±3% LED current accuracy

Ultra low operating current for high efficiency

Excellent line and load regulations

Cycle-by-Cycle current limiting

Fixed OVP voltage for  LED open circuit protection

LED short circuit protection

Over temperature compensation

CS resistor short circuit protection.

VCC under-voltage lockout

Available in SOP8 and DIP8 packages


More details
FT8852DD Buck 50W Internal NPN ±3% DIP8 Linear Dimming

Product Profile :

FT8852x is optimized for low cost non-isolated Buck switching mode LED driver applications. It operates in inductor current boundary conduction mode. With source driving architecture, special demagnetization sensing technology and the ultra low operating current, FT8852x doesn’t need the auxiliary winding for output current sensing and chip power supplying. FT8852x also integrates a 700V power NPN that further improves the system reliability and lowers the system cost and complexity. 

Its highly integrated functions such as Leading Edge Blanking (LEB) and built-in line compensation offer users a high efficiency and low cost solution for constant current LED driver applications.  

The multi-protection function of FT8852x greatly enhances the system reliability and safety. FT8852x offers fruitful protections like LED open and short circuit protection, over temperature compensation, CS resistor short circuit protection. 

The industry leading OVP voltage accuracy ensures the best LED open circuit protection.

Feature :

PWM dimming support

No Auxiliary winding for sensing and supplying 

Inductor current boundary conduction mode(BCM)

Constant current control without secondary sense and feedback circuit

Built-in 700V Power NPN

High efficiency with ±3% LED current accuracy

Ultra low operating current for high efficiency

Excellent line and load regulations

Cycle-by-Cycle current limiting

Fixed OVP voltage for  LED open circuit protection

LED short circuit protection

Over temperature compensation

CS resistor short circuit protection.

VCC under-voltage lockout

Available in SOP8 and DIP8 packages


More details

datasheet

Part No. Version Update Supported Part Nos download
FT8852xx 0.80 2018-06-04 FT8852A、FT8852C、FT8852DD

Promotion

Part No. Version Update Supported Part Nos download
Dimming 2.0 2018-06-04 Isolated (Low PFC+Dimming)、Non-isolated (Low PFC+Dimming)

Writer

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IDE

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Application Note

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