SiFirst SFL669
SFL669 is a high precision AC/DC offline PSR (Primary Side Regulation) power switch for LED luminaries. The IC can provide very tight (less than 3%) constant current control (CC) ideal for LED lighting applicFEATURES
● Built-in 600V Power MOSFET● Primary Side Regulation (PSR) Control, No Secondary Feedback Circuit Required
● 1% Precision (@Tj=25 ℃) Internal Reference Voltage for Constant Current (CC) Control
● Wide VDD Range (10 to 30V) Eases Flexible LED System Design
● Precision LED Output Voltage Clamp
● Compensate for Line Voltage Variation and Transformer Inductance Tolerance
● Built-in Soft Start
● All Pins Floating Protection
● LED Open/Short Circuit Protection
● PFM Control Eases EMI Design
● Cycle-by-Cycle Current Limiting
● Built-in Leading Edge Blanking (LEB)
● VDD Under Voltage Lockout (UVLO)
● Output Over Voltage Protection
● VDD OVP & Clamp
GENERAL DESCRIPTION