• RE: ADN883x (TEC Controller) capability. ADN883x vs LTC1923

    Chaz,

    Thanks for your reply. We currently use LTC1923 for our existing design. Do you have any idea about the temp stability performance of ADN8834? The design of ADN8834 is simpler than LTC1923. So I wonder if we can switch to ADN8834 in my application…

  • RE: LTC1923EUH internal operational amplifier and system characterization

    The info about the error amplifier is listed on LTC1923 data sheet page 3. I would recommend to set CNTRL voltage around 1.25V initially for the test.

     

    We have standard demo boards (DC388, and DC491) for the LTC1923. Recommend to test/follow the demo boards…

  • RE: Temperature Setting with LTC1923

    It's not recommended to tie the VREF pins together. Thanks.

  • LTC1923 with N channel MOSFETs

    Hi,

    We want to do a temperature regulation using the LTC1923 and a high power TEC. 

    We plan to power the TEC in a bridge made of n-channel MOSFETs to be able to drive the required power (the TEC must be 24 V supplied).

    The MOSFETs are driven by using "High…

  • RE: LTC1923 DC388C demo board reference design schematics and board files?

    Hello,

    We make all the design files, schematic, BOM, layout, available on the web. Please use the link below to get to the DC388C page and go down the the design files link under Documentation.

    https://www.analog.com/en/design-center/evaluation-hardware…

  • 关于LTC1923使用中的问题

    我现在有个板子上用到了LTC1923,是参考了高压application来设计的。

     

    现在遇到了以下几个问题,无法找到解决方法,还请有经验的人帮指点下迷津。

    1. Current limit总是在起作用。我把current limit设定为2A或者更大,从Itec上测到的波形,都能看出current limit有发生作用。

    但是我连接的peltiuer设备是肯定用不了这么多电流的。

     

    1. 示波器上测PDRVB,NDRVB,NDRVA,PDRVA这四个波形。

    发现工作在制冷模式的时候,PDRVB,NDRVB总是一个为高…

  • Can we modulating Thermoelectric cooler

    If the ramp signal is applied instead of the square signal PWM which is mainly used to control the TEC, does the TEC change linearly to the ramp signal?

    The ramp signal duration I want to use is about 10 ms and the temperature difference between the…

  • TAGS LIST: Optical

    AD800
    AD803
    AD807
    AD808
    ADN2804
    ADN2805
    ADN2806
    ADN2807
    ADN2811
    ADN2812
    ADN2813
    ADN2814
    ADN2815
    ADN2816
    ADN2817
    ADN2818
    ADN2819
    ADN2855
    ADN2905
    ADN2913
    ADN2915
    ADN2917
    ADL5315
    ADL5317
    LTC5100