• ADP1071-1 : Start Up Behavior

    I'm designing in ADP1071-1 PWM controller to regulate a two-switch flyback auxiliary power converter. As I'm going through the design I've encountered a few gray areas I was hoping to gain some insight on.

    1. The "GATE PIN" of the ADP1071-1…
  • RE: power supply design.

    Hi Vineet,

    Check out ADP1071-1. That sounds like the perfect part for you. You might be able to get the LT3825 to work as well, although it usually targets the 36V to 72V input range.

    Best Regards,


  • RE: Are there models of ADP1074 and ADP1071-2 for LTSPICE available?

    The ADP1071-2 will indeed be a good fit for this. The ADP1071-2 is in pre-release status so the full datasheet is not yet available. However, it is exactly similar to ADP1074 (active clamp forward converter) with fewer pins. I suggest you contact the…

  • RE: “芯”来乍到,求赞、求围观!


    集成了5kV隔离功能的隔离脉宽调制(PWM)控制器ADP107x系列,均采用ADI屡获殊荣的iCoupler 技术。ADP1071-1和ADP1071-2是隔离同步反激式控制器;而ADP1074是隔离同步有源钳位正激控制器。它们集成了通常需要几个分立器件的多个功能,如过压保护(OVP)、输出跟踪和用于提高能效的轻负载模式以及SR驱动器,与使用光耦合器的传统方法相比,板空间节省多达35%,系统可靠性大大提高。


  • RE: Can you clarify how to set the switching frequency of ADP1071?

    Apologies for the confusion. Please treat R_TOP+R_BOT= R and place R on the RT pin to AGND1. See fig 27 for more details below.


    I will make a change to the datasheet…

  • RE: ADP1071-2 evm 36W 12.1 VOUT

    Hi, Thanks for those questions, here please find some answers. 

    1). Yes, ADP1071-2 LTSPICE is available. Please update LTspice library to the latest one, and you can find ADP1071-2 example circuitry available. 

    2). No minimum load required for ADP1071-2.

  • RE: adp 1074 and low load

    Hi Alex, 

    Thanks for your questions.  

    In your questions, we are not quite sure if you are referring to ADP1071-2 board (the link PDF) or ADP1074 (in the title). For the output voltage ripple in the pulse-skipping mode, it is related to the COMP pin clamp…

  • RE: isolation circuit for 24V and 3A DC


     Thank you for your reply. 

    Can I use ADP1071-2 for isolation of 24V?

    This module can be synchronised upto 600KHz. But I could not find some reference circuit for this circuit.   

    Can you please suggest some reference circuit or some other module which…

  • LTC3108-1


    We are working on PoC based on LTC3108-1. We wish add a LED for visual monitoring, LTC3108 is not able to supply a suffisient current to drive the LED.

    Could we use C2 input for drive an external Mosfet (low Qg) ?



  • RE: .file_attr 1="1";

    Hi Gideon,

    Sorry for the delay in responding.

    The cause of the problem is "-file-attr CORE0" and "-DCORE0" both being included on the compiler command-line. Could you delete CORE0 from the "Additional attributes" in Tools Settings > CrossCore Blackfin…