Use DSP28335 to drive CGD1200HB2P-BM2

SilvaDeng

I am using the DSP28335 chip to input PWM signals into the CGD1200HB2P-BM2. However, the CGD1200HB2P-BM2 can only receive differential signals. What chip should I choose to convert a single-ended 3.3V signal into a 5V differential signal? Is there a typical circuit for the CGD1200HB2P-BM2 device?

Forum_Moderator

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AustinC

Hi SilvaDeng,

I recommend using the differential transceiver companion card (CGD12HB00D). You will feed the single-ended PWM signals from your F28335 to this transceiver card and then connect the differential outputs of the transceiver card to the BM2 gate driver. A similar example is shown below.

https://forum.wolfspeed.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.wolfspeed.com%2Fproducts%2Fpower%2Fcgd12hb00d%2F

Best Regards,

Austin C.