What driver IC is this?

[jeeybee]

What driver IC could this be?
It got 19 pins and should be rated about 3A and 40v.
It sits on a driver named 3128a.

Anyone recognize it?

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[john-100]

it could be THB7128 - its the first result I found searching for
19 pin stepper driver ic

New stepper motor driver IC THB6128,THB7128,THB8128 - Forums.MrPLC.com

John

[jeeybee]

Thank you, I searched for an hour and didnt find anything resembling, I wrote 19pin without spacing though :/