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发布者:微桥 发布时间:2012/2/21 阅读:6323次    关键字: LED
SP6801-Universal High Brightness LED Driver


SP6801-Universal High Brightness LED DriverDataSheet

DESCRIPTION
    The SP6801 is a PWM high efficiency LED driver. It operates in wide range input voltage from 10V up to 600V. The device drives an external MOSFET at a fixed frequency. The frequency is programmable up to 300KHz with a single resistor. The dimming control for SP6801 can be either PWM input or linear input. The PWM input can accept an external control signal with a duty cycle of 0% to 100% and a frequency of a few kilohertz. The LED string is driven at a constant current without the need for loop compensation. SP6801 requires only few external components to achieve constant LED current making it ideas for low cost LED driver. The SP6801 is available in SOP-8 package.

FEATURES
􀁺 >90% efficiency
􀁺 10V to 600V DC input range
􀁺 Constant current LED driver
􀁺 Linear and PWM dimming capability
􀁺 Internal thermal overload protection

APPLICATIONS
􀁺 AC/DC or DC/DC LED driver applications
􀁺 Backlighting for flat panel displays
􀁺 General purpose constant current source
􀁺 Automotive
􀁺 Chargers

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