This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LMG1210: Maximum bus voltage

Part Number: LMG1210

Hi, 

my question is wether the maximum 200V for bus voltage ( high side floating voltage) is an absolute maximum or a nominal maximum. 

I had an experience with other manufacturer which had to issue an update on the specifications because the operation was unreliable.

Do you have testing data for LMG1210 operating in half bridge configuration with 200V bus voltage with GaN devices? ( GaNSYstems or EPC let's say).

Kind regards

  • Hello,

    Please refer to the data sheet for details, but the LMG1210 is rated for 200V max recommended operations voltage. The absolute max voltage is 300V.

    For half-bridge design examples please refer to our EVM and reference design: www.ti.com/.../toolssoftware


    Thanks!

    Masoud
  • To add a bit more detail, as stated on the datasheet, the LMG1210 uses capacitors to isolate the high-side from the low-side. Those capacitors are very high voltage capacitors with lots of margin relative to the part rating, so actual part damage is unlikely even from high voltages. Some internal circuits will not function correctly if too much voltage is used, however the minimum voltage necessary to cause the malfunction is above the 300V abs max. This malfunction does not damage the part. The 200V recommended operating max is set mostly by creepage/clearance and packaging considerations (i.e. the package is not qualified for 300V continuous operating voltage)

    We have tested the LMG1210 operating over its entire operating range as well as beyond it for stress testing.