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发布者:微桥 发布时间:2011-11-24 阅读:3305次    关键字: AC-DC
SP6850-Green-Mode PWM Controller


SP6850-Green-Mode PWM Controller DataSheet

DESCRIPTION
    The SP6850 is the current mode PWM controller with green-mode power-saving operation, to meet the low standby-power needs of low-power SMPS. This green-mode function enables the power supply to easily meet even the strictest power conservation requirements. The functions such as the leading-edge blanking of the current sensing, internal slope compensation and the small package provide the high efficiency / low cost for SMPS power applications. SP6850 is processed by BiCMOS fabrication, that enables reducing the start-up current and the operating current. SP6850 is available by SOT-23-6L / DIP-8P packages.

FEATURES
􀁺 High-Voltage BiCMOS Process
􀁺 Very Low Startup Current (Typ ~ 8μA)
􀁺 Under Voltage Lockout (UVLO )
􀁺 Current Mode Control with Cycle Peak
􀁺 Current Limiting
􀁺 Leading-Edge Blanking
􀁺 Programmable Switching Frequency
􀁺 Internal Slope Compensation
􀁺 Green-Mode Control for Power Saving
􀁺 Non-audible-noise Green Mode Control
􀁺 300mA Driving Capability
􀁺 OVP (Over Voltage Protection) on Vcc Pin

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

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