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I was Hoping someone smarter than me could help. I am looking for a replacement IC that blew up on a board. I was able to get a picture of the chip from another board to get the markings. The chip reads:

ATD5984 DA01D1C

From what I can see the top markings appear to be a motor driver of some kind, maybe a stepper motor etc however, I can't tell what the markings on the bottom are. I can't find this exact chip. The closest I found had the same ATD5984 but the bottom read C9M01b1. I assume the bottom markings are features or capabilities of the ATD5984 chip

I am looking for a replacement of the ATD5984 DA01D1C chip. Is there something similar I could use? I put some pictures of the board and zoomed in pic of the IC for reference.

Thank You! Dave enter image description here

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  • \$\begingroup\$ please edit the title to include the markings on IC \$\endgroup\$
    – jsotola
    Commented Mar 28 at 1:06

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Simple web search for ATD5984 shows nearly full information about this stepping motor driver. The IC is widely available on Asian markets.

I assume the bottom markings are features or capabilities of the ATD5984 chip

No, it is just a manufacturing code of date of manufacturing or batch number.

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  • \$\begingroup\$ Thank you. That is what I was looking for. Cheers! \$\endgroup\$
    – Fishbone
    Commented Mar 28 at 3:20
  • \$\begingroup\$ @Fishbone Although the specifications of the Zhongkewei part are mostly different (generally a bit lower voltage and temperature range, but with much better on-resistance) you might want to refer to the datasheet of the functionally very similar Allegro A5984 if your Chinese is not up to par. \$\endgroup\$
    – Spehro 'speff' Pefhany
    Commented Mar 28 at 8:05

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