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发布者:微桥 发布时间:2011-11-24 阅读:3538次    关键字: AC-DC
SP6853-Green-Mode PWM Controller


SP6853-Green-Mode PWM Controller DataSheet

DESCRIPTION
    The SP6853 is a low cost , low startup current ,current mode PWM controller with green-mode power-saving operation. The integrated functions include the leading-edge blanking of the current sensing, internal slope compensation. It would
provide the users a superior AC/DC power application of higher efficiency, low external component counts, and lower cost solution for applications.
The SP6853 features more protections or functions for the following characteristics :
※Add OLP (Over Load Protection) function to provide better protection performance for fault conditions like short circuit or over load.
※Modify the OVP (Over Voltage Protection) mechanism from the cycle-by-cycle mode to the hiccup mode.
    SP6853 is available by SOT-23-6L / DIP-8P packages.

FEATURES
􀁺 High-Voltage BiCMOS Process
􀁺 Very Low Startup Current (<20μA)
􀁺 Under Voltage Lockout (UVLO )
􀁺 Current Mode Control
􀁺 Non-audible-noise Green Mode Control
􀁺 Current Limiting
􀁺 LEB (Leading-Edge Blanking) on CS Pin
􀁺 OLP (Over Load Protection)
􀁺 OVP (Over Voltage Protection) on Vcc Pin
􀁺 Leading-Edge Blanking
􀁺 Programmable Switching Frequency
􀁺 Internal Slope Compensation
􀁺 Green-Mode Control for Power Saving
􀁺 300mA Driving Capability

APPLICATIONS
􀁺 AC/DC Switching Power Adaptor
􀁺 Battery Charger
􀁺 PC 5V Standby Power.
􀁺 Open-Frame Switching Power Supply

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