OB3390/1/T

Low Cost PSR Control LED Lighting Driver (For BJT)

OB3390 is a primary side control offline LED lighting which can achieve accurate LED current and low system cost for an isolate lighting application in a single stage converter. It can significantly simplify the LED lighting system design by eliminating the secondary side feedback components and the optocoupler. 


Features: 

◆ High precision Constant Current Regulation at Universal AC input 
◆ Primary-side Sensing and Regulation Without TL431 and Opto-coupler 
◆ Low System Cost and High Efficiency 
◆ Programmable CC Regulation 
◆ Built-in Primary winding inductance compensation 
◆ Driver BJT Switch 
◆ Ultra Low Start-up Current (Typ. 1uA) 
◆ LED short Protection 
◆ LED open Protection 
◆ Cycle-by-Cycle Current Limiting 
◆ Built-in Leading Edge Blanking (LEB) 
◆ VDD Over Voltage Protection 
◆ VDD Under Voltage Lockout with Hysteresis 
◆ Available in SOT23-5 packages, RoHS compliant 



Applications: 

◆ LED Lighting
◆ LED PAR Lamp

Typical Application: