UCC27611: Can UCC27611 be used for high side driver?

Ryota Tauchi

Part Number: UCC27611

Hi, I am now thinking using UCC27611 as a gate driver for hull bridge inverter.
The input voltage is 200 V.

So, I made a gate drive circuit schematic in the Pspice for TI. And the simulation result showed that voltage potential about 200 V is applied to VDD, IN+, IN-, OUTPUT pins of high side UCC27611.

The UCC27611 is working properly because a potential difference is created on the high side for the UCC27611 to operate, but when viewed in terms of potential, the voltage is quite high on the pin. Will it break when actually used?

I attached the schematic and simulation result pdf. Please also check this.InverterDesign.pdf InverterResult.pdf

Sincerely,

Ryota Tauchi

over 1 year ago

+1 Rubas Khalid over 1 year ago

TI__Expert 8771 points

Hi Ryota,

Yes, you can use a low-side driver as a high-side driver, as described in this FAQ. As long as the potential difference between those pins and the GND of the UCC27611 is within datasheet specs, the device should not break and operate as normal.

Thanks,
Rubas

0 Ryota Tauchi over 1 year ago in reply to Rubas Khalid

Prodigy 10 points

Hi Rubas,

Thank you for your rapid reply.
I'm relieved to know UCC27611 will work as high side driver.

Thanks,
Ryota Tauchi

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UCC27611: Can UCC27611 be used for high side driver?