发布时间:2022-12-26 08:51:15 作者: 赛威科技 来源:

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.

上一个: SFL100
下一个: SFL980