• LTC3805-5 seems working incorrectly

    Hello, I am going to use LTC3805-5 as the controlling circuit of a flyback converter.

    Firstly, I built a small circuit to get some knowledge of the chip. The schematic is shown below:

    The components in the shadow are not installed on the pcb. It is…

  • RE: LT3758 in Flyback with optoisolator feedback for 24V and 4A

    Hi Mohsin,

    We will also recommend that you consider LTC3805 as this have good features too. In terms of support including transformer selection, please contact local ADI field application engineer who can guide you closely with your design.

  • How to use the sync pin of the LTC3805

    Hello People,

    I'm using a LTC3805 in a sepic design and I have some questions regarding the sync input.

    I have a Vin of 19V to 24V, Vout of 20V and -20V at Iout(max) of 260mA and -200mA. I use two coupled inductors of 330uH and the sense resistor…

  • RE: Why LTC3805-5 restarts again and again?

    The restart may happen due to noise on OC pin or due to under voltage lockout on Vcc pin.

    Increasing the 5V input to 5.5V-6V level can rule out the UVLO on Vcc pin.

    Adding a decoupling cap close to OC and GND pins will indicate if the problem is due…

  • LTC3805-5通电后没有反应

    Hi,

    我在使用LTC3805-5设计flyback converter时,发现通电后LTC3805-5的GATE引脚没有输出驱动信号。VCC和RUN上有电压,都是5V;FS引脚上没有看到任何波形。

    电路图如下:

    请问应该测量哪些引脚以判断该芯片是否正常工作?这些引脚上的波形大致是什么样的?

    另外,该芯片的GND引脚位于封装背面,请问如何手工焊接?焊接时需要注意什么?

  • TAGS LIST: Power by Linear

    LTM8045
    LTM8049
    LTM4651
    LTM4661
    LTM4686
    LTM4676
    LTM4686-1
    LTM4676A
    LTM4675
    LTM4677
    LTM4678
    LTM8062
    LTM8061
    LTM8052
    LTM8026
    LTM8056
    LTM8064
    LTM8054
    LTM8055
    LTM4600
    LTM4600HV
    LTM4608A
    LTM4604A
    LTM8032