Based on the LT3755 50W white LED headlight drive circuit diagram


Posted on Mar 28, 2007

LT3755 in the LED string high side sensing output current, high-side current sensing is used to drive the LED's most flexible program, PWM input provides up to 3000: 1 dimming ratio,


Based on the LT3755 50W white LED headlight drive circuit diagram
Click here to download the full size of the above Circuit.

and the CTRL input provides additional analog dimming light capability. LT3755 16-pin (3mm 3mm) QFN package and MS0P. LT3755 main technical characteristics are as follows: (1) Wide input voltage range (4.5 ~ 40V). (2) output voltages up to 75V. (3) thereupon constant current and constant voltage regulation. (4) 100mV High Side Current Sense. (5) can boost, buck, buck - boost, SEPIC or flyback topology to drive the LED. (6) having an open LED, programmable hysteresis undervoltage lockout protection. (7) Open LED Status pin. (8) PWM Disconnect Switch Driver. (9) CTRL pin provides analog dimming function. (10) Low Shutdown Current: <1uA. (11) programmable soft-start.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Sawtooth to triangle converter for oscillator
    High speed paper tape reader
    Overtone crystal oscillator
    3-Way Light Control
    Adjustable High/Low Frequency Sine wave generator
    Line Following Robot Sensor
    Doorbell with IC555
    DIY Satellite Finder Circuit
    Auto Fade Implementation on Audio Signals Project PCB
    22W Mobile Car Stereo Power Amplifier PCB
    Exit Sign With Battery Protection
    Simple Pyro RF Receiver (27 MHz) Circuit
    Infrared IR Receiver Circuit
    555 monostable circuit diagram of a low power consumption



    Top