DRV8876-Q1: Software Selectable IMODE

Egemen Aksoy

Part Number: DRV8876-Q1

Tool/software:

Hello,

In our design, we are using DRV8876-Q1.

For the IMODE selection,

IMODE selection resistors are attached.

We are using 20.5k instead of 20k and we shall use 52.3k+10k instead of 62k resistor.

Is it okay for the application?

Additionally for the software selectable IMODE these resistors connected via npn BJTs,

Is it applicable? Does BJT voltage drop cause any issues for the application?

Best regards,

Egemen Aksoy

0 Egemen Aksoy 10 months ago

Hello,

I have one more question.

In reference design, for the charge pump (CPL and CPH) CERM, 0.022 uF, 50 V, +/- 10%, X7R, 0603 Capacitor used (885012206091)

Can we use 0.022 µF ±10% 50V 0402 capacitor (CL05B223KB5VPNC) ?

Best regards,

Egemen Aksoy

0 Ibinu Alaudeen Nadeera 10 months ago in reply to Egemen Aksoy

Hi Egemen,

Thanks for your question. Our device expert will look into this and get back to you.

Thanks
Ibinu

0 Keerthivasan Kumanan 10 months ago in reply to Ibinu Alaudeen Nadeera

Hi Egemon,

Please refer to this table in the ds for the tolerances:

Do you know the voltage drop introduce by the BJT, if so you can check if it is within the tolerances specified above?

Best,

Keerthi

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