Prema 公司的PR4101是大功率LED降压驱动器,能串通方式驱动一个或多个大功率LED.工作电压可高达40V,采用外接N沟MOSFET开关管,输出电流可高达1A.可用于卤素灯,通用照明,告警照明,汽车照明,信号指示和LCD背景光.

    High Power LED Buck Driver PR4101

    The PR4101 is a LED buck driver for driving one or several high power LEDs in series.

    The supply voltage can be up to 40V, with an output current of more than 1A using an

    external N-channel MOSFET switching transistor. The PR4101A with additional PWM and

    power down input is delivered SOP14 packaged, while the PR4101B is offered SO8

    packaged.

    PR4101主要特性:

    Adjustable output current of 1A and more

    Supply voltage up to 40V bulb replacement by LEDs

    Dimming with phase-cut dimmer

    Brightness control with PWM (PR4101A only)

    Output current temperature compensation

    Delayed start possible (PR4101A only)

    Over temperature protection

    Frequency spreading for improved EMI

    Low standby current of < 35 μA

    Under voltage lockout

    应用:

    Halogen lamp or filament

    General illumination

    Warning lights

    Automotive lighting

    Indicator signs

    LCD backlighting