• ADN8830 replacement

    Hi,

    As we see that the ADN8830 is made NRND, can anyone please suggest me the best replacement for the same.

    And what is the expected supply period for this part?

    Thanks & Regards,

    Nanjunda M

  • some questions about adn8830

    HERE, there are several  questions when i use ADN8830 as the TEC controller.
     1. I n the h igh temperature test(60℃),  when the pin 15(VLIM) was connected to the GND, the current of the  TEC controller was smoothly increased which is like…
  • 关于ADN8830的输出电压

    我在使用上面的电路时(3.3V单片机供电),有以下几个问题:

    1、用万用表测量14脚的电压时,电压值会一直下降,从1点几伏开始,而且我感觉只有在表笔接触14脚的电压才下降。(在1v的时候我将表笔拿开,过一段时间再测电压值还是从1v左右开始下降)

    2、我将12,13,14脚之间的PID电路改为纯比例电路,改变电阻的比值,在12脚的输入不变的条件下,14脚的输出变化很小。

    3、OUTA这个脚的电压值我无论怎么调节,都只在0和3.2v两个值之中变化。

    我做实验的时候用电位器代替热敏电阻。

  • some questions of “Control TEC with ADN8830”

    it's the schematic.

    there are some questions.

    1、the schematic is right?

    2、the voltage of VREF(pin7)can't reach 2.5V,only about 1V.【VCC=5V】

    3、4 MOSFETs can be turned on only three.

    4、the voltage of pin12 Doesn’t equal the  Twenty times the…

  • ADN8830过流烧坏,找不到原因

    最近在调试ADN8830电路,外围电路参照ADN8830手册做的。有个现象就是,调节外围PID的参数,调到某些值的时候,供电电流会变得非常大,超过4A(感觉是输出震荡了),稳压电源限制电流为4A了,所以过流时供电电压来回跳动,会导致ADN8830发热烧毁。TEC用的是5V的TEC制冷片,电路限制最大电压也是5V,TEC在5V时的电流是2A,所以按理说不会超过2A电流才对。请问一下,如何防止PID环路导致输出震荡,还有ADN8830为什么会发热烧毁?

  • ADN8830官网显示新设计中不建议使用

    ADN8830官网显示新设计中不建议使用,是要准备停产了吗?

  • RE: ADN8834

    I also find the application circuit of ADN8831,which seems looks like the ADN8834.I used ADN8830 ever,it seems different.But ADN8830 is not recommended,so I use ADN8834 instead.

  • ADN8831's problem

    Dear ADI's Engineer,

      Now I am using the ADN8831.

      The cutomer is using ADN8830 before and the target temperature's setting is use the Rx+ Rtherm(in ADN8830 datasheet page 8~9).

      But in ADN8831 add a resistor R+RX+Rth(in ADN8831 datasheet page14…

  • RE: ADN8831 TEC controller - 24 Voltage Application?

    The ADN8830 is included in the SPICE library, you may want to modify that model to apply to the ADN8831.

    Best Regards,

    LucaV

  • RE: 请教一个高精度的温控方案

    关于TEC控制的解决方案, 现在有的解决方案是ADN8830

    可以看一下AN-695  AN-705