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DRV2700: Transformer selected suggesstion

chun pi wang
Prodigy 10 points
Part Number: DRV2700

Dear Sir : We had used the user's guide of DRV2700EVM-HV500 for our Piezo driving. There is a transformer (ATB3225) in BOM list of this document. We need to find another back up transformer, and we are not sure which items of  characteristics spec were critical. Please help to define some critical characteristics you may concern, if you can show us some other recommendation transformer that should be best.

Thaks.

  • 0
    TI__Guru* 84915 points

    Hi, Chun,

    Welcome to E2E and thank you for your interest in our products!

    For the DRV2700 transformer selection, it is important to consider the turn ratio, withstanding voltage and rated current. The transformer used in the DRV2700EVM-HV500 has a 1:10 ratio, withstanding voltage = 500Vrms and rated current of 0.6Vrms. For a 500V output, we recommend to use these parameters as minimum requirement.

    Best regards,
    Luis Fernando Rodríguez S.