Super-QR/PSRTM CV/CC LED Controller
◆ Proprietary super-QR/PSRTM (Quasi-Resonant & Primary Side Regulation) Control for High Efficiency and Low EMI
◆ ±5% CC and CV Precision
◆ Proprietary AC and Output Compensation
◆ Proprietary Cable Drop Compensation
◆ Output Over Voltage Protection
◆ Low Startup Current
◆ Cycle-by-Cycle Current Limiting
◆ Built-in Leading Edge Blanking (LEB)
◆ Pin Floating Protection
◆ Built-in Soft Start
◆ VDD OVP & Clamp
◆ VDD Under Voltage Lockout (UVLO)
◆ Battery chargers for cellular phones, cordless phones, PDA, digital cameras, etc
◆ Replaces linear transformer and RCC SMPS
◆ AC/DC LED lighting
SFL671 is a high performance, highly integrated QR (Quasi Resonant Mode) and Primary Side Regulation (PSR) controller special for LED lighting applications.
SFL671 has proprietary super-QR/PSRTM control for high efficiency and low EMI. The IC also has built-in AC and output compensation function, which can provide excellent CC performance.
SFL671 has built-in cable drop compensation function, which can provide excellent CV performance.
SFL671 integrates functions and protections of Under Voltage Lockout (UVLO), VDD Over Voltage Protection (VDD OVP), Output Over Voltage Protection (Output OVP), Soft Start, Cycle-by-cycle Current Limiting (OCP), Pin Floating Protection, Gate Clamping, VDD Clamping.
SFL671 is available in SOT23-6 package.