Using the MC34GD3000 Gate Driver with a 24 V BLDC Motor

MCmuhyeon0523 — Mon, 06 Jul 2026 04:23:56 GMT

Hello,

I am currently using the S32K144 BLDC/PMSM Development Kit, which includes the MC34GD3000 gate driver IC.

From the application circuit and documentation, it appears that the reference design is intended for a 12 V BLDC motor. However, the BLDC motor included with the development kit is actually a 24 V motor, which raised a few questions for me.

I would appreciate your advice on the following:

My understanding is that the MC34GD3000 gate driver itself operates from a 12 V gate-drive supply, while the inverter DC bus can be supplied with 24 V for driving a 24 V BLDC motor. Is this the correct way to use the MC34GD3000, or am I missing something?
Are there any voltage-related limitations or precautions when using the MC34GD3000 with a 24 V BLDC motor? For example, are there any recommended operating conditions, bootstrap considerations, or other design points that I should pay attention to?
If anyone has experience using this development kit or the MC34GD3000 with a 24 V motor, I would greatly appreciate your advice.

Thank you in advance!

Re: Using the MC34GD3000 Gate Driver with a 24 V BLDC Motor

Senlent — Mon, 06 Jul 2026 07:33:12 GMT

Hi@MCmuhyeon0523

you can take a look this solution,

The MCSXTE2BK142 is a development board engineered for 3-phase Permanent Magnet (BLDC/PMSM) motor up to 800 W output at 24 V system or up to 400 W at 12 V system.

https://www.nxp.com/design/design-center/development-boards-and-designs/MCSXTE2BK142

S32KのトピックRe: Using the MC34GD3000 Gate Driver with a 24 V BLDC Motor

Using the MC34GD3000 Gate Driver with a 24 V BLDC Motor

Re: Using the MC34GD3000 Gate Driver with a 24 V BLDC Motor