
Leadtrend Technology
General Description
The LD7833V is a primary side regulation Flyback controller with power factor for TRIAC dimmable LED application. The LD7833V provides constant current (CC) operation requiring neither photo-coupler nor secondary control circuit. It minimizes the components counts in a tiny package. Those make it easy to design for cost- effective applications.
FEATUREs
● High Voltage (700V) Startup Circuit
● Transition Mode Operation
● High Power Factor
● Dimmable by TRIAC dimmer
● VCC Over Voltage Protection
● Adjustable Output OVP
● Over Current Protection
● Output Short Circuit Protection
● Over Temperature Protection
● Built-in Phase Angle Cut-off Function
● 250mA/-500mA Driving Capability
● Internal Over Temperature Protection
● SOP-7/8 Package
APPLICATIONs
● LED Lighting System