SF6773V
西部开发报
FEATURES
◆Meet EPS Level 6
◆Built-in 650V Power MOSFET
◆Proprietary super-QR/PSR TM(Quasi-
Resonant & Primary Side Regulation) Control for High Efficiency and Low EMI
◆Proprietary Cable Drop Compensation
◆Max. Frequency Clamping to Limit Power城市轨道交通控制 中国政局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 APPLICATIONS
◆Battery chargers for cellular phones, cordless
phones, PDA, digital cameras, etc数字阵列雷达
◆Replaces linear transformer and RCC SMPS
◆AC/DC LED lighting GENERAL DESCRIPTION
后窗惊魂2007
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/PSR TM 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 package.
TYPICAL APPLICATION
super-QR/PSR TM CV/CC Power Switch
Pin Configuration YWW: Year&Week code
Block Diagram
ELECTRICAL CHARACTERISTICS
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江苏文惠网
Note 1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note 2. The device is not guaranteed to function outside its operating conditions.
CHARACTERIZATION PLOTS
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