Classification:Charger Release time:2022-12-15 15:36:15 Author: 赛威科技 Source:

super-QR/PSRTM CV/CC Power Switch


   Meet EPS Level 6

   Built-in 650V Power MOSFET

   Proprietary super-QR/PSRTM (Quasi-Resonant & Primary Side Regulation) Control for High Efficiency and Low EMI

   Proprietary Cable Drop Compensation

   Max. Frequency Clamping to Limit Power MOSFET Vds Spike @ Output Short Circuit

   Less than 70mW Standby Power

   ±5% CC and CV Precision

   Multi-Mode Control

   Cycle-by-Cycle Current Limiting

   Leading Edge Blanking (LEB)

   Soft Start

   Output Over Voltage Protection

   VDD UVLO, OVP & Clamp




   Battery chargers for cellular phones, cordless phones, PDA, digital cameras, etc

   Replaces linear transformer and RCC SMPS

   AC/DC LED lighting


SF6773V is a high performance, highly integrated QR (Quasi Resonant Mode) and Primary Side Regulation (PSR) power switch for offline small power converter applications.

SF6773V has proprietary super-QR/PSRTM control for high efficiency and low EMI, which can ensure system to meet EPS Level 6 energy standard. The IC also has built-in cable drop compensation function to achieve excellent CV performance.

SF6773V uses Multi Mode Control to improve efficiency and reliability and to decrease audio noise energy @ light loadings. SF6773V also integrates the function of “Max. Frequency Clamping @ Output Short Circuit” to limits power MOSFET Vds spike when output short circuits occurs.

SF6773V integrates functions and protections of FB Short Protection, 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, VDD Clamping.

SF6773V is available in SOP7 packages

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