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Softwin swAides
SFL668
High Precision AC/DC PSR Controller for LED Driver
FEATURES
◆ 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
APPLICATIONS
◆ LED Luminaries ◆ LED Tube Light ◆ LED PAR30/PAR38, Down Light ◆ GU10/E27 LED Bulb, Spot Light
GENERAL DESCRIPTION
SFL668 is a high precision AC/DC offline PSR (Primary Side Regulation) controller for LED luminaries. The IC can provide very.