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            AW9962EDNR

            High Efficiency, Support 0.3% PWM Dimming Boost WLED Driver

            The AW9962E is a white LED driver with integrated boost converter. With an internal 40V switch FET, the AW9962E drives up a string of up to 10 LEDs in series. The boost converter runs at 1.1MHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use of small external components. The default white LED current is set with the external sense resistor R SET , and the feedback voltage is regulated to 200mV, as shown in the typical application. During the operation, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. AW9962E integrates built-in soft-start function to minimize the power supply  inrush current. AW9962E also integrates over-current protection , LED open protection and over temperature protection(OTP) to prevent chip from entering abnormal operating conditions.

            產品特性

            l  Support 0.3% PWM dimming

            l  PWM control input for CABC operation

            l  1.1MHz Switching Frequency

            l  38V Over-voltage Protection for up to 10 LEDs in Series

            l  200mV Reference Voltage

            l  2.7V to 5.5V Input Voltage Range

            l  Over-current and Over-temperature Protection

            l  Built-in Soft-start Limits Inrush Current

            l  Ultra Small 2mm*2mm DFN-6L package


            Datasheet

            Application note

            產品型號 文檔格式 大小 下載
            AW9962EDNR PDF 1.45M
            • Total Max Number
              Control Interface
              Min Duty(%)
              VRef_PWM
              Flash Mode
              Switching Frequency (MHz)
              Package (mm)
            封裝形式 引腳數 長(mm) 寬(mm) 厚(mm) 引腳間距(mm) 散熱盤 文檔下載
            DFN 2.0×2.0×0.75 -6L(A) 6 2.0 2.0 0.75 0.65 Y
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            国产疯狂女同互磨高潮在线看
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