topic D10 diode on MCIMX6DL-SDP in i.MX Processors

D10 diode on MCIMX6DL-SDP

eishishibusawa — Thu, 23 Aug 2018 02:32:12 GMT

Dear Sir

Customer develop the product by using MCIMX6U5EVM10AD.

Customer refer to the schematics of MCIMX6DL-SDP (SPF-27417_C5.pdf).

There is a diode(D10) between VDD_SNVS_IN and VDDHIGH_IN, VGEN5_2V8.

There is description of NOTE below.

"NOTE : Diode D10 is required to correct a problem on a small number of i.MX6 DualLite parts in which VDDSNVS does not come up when VDDHIGH_IN is applied. A similar problem was corrected on i.MX6Q TO1.2 processors."

Q1.

Has the problem been fixed with MCIMX6U5EVM10AD?

Q2.

Is it need the D10 diode When developing with MCIMX6U5EVM10AD?

Best Regards,

Eishi SHIBUSAWA

Re: D10 diode on MCIMX6DL-SDP

eishishibusawa — Thu, 30 Aug 2018 05:17:12 GMT

Dear NXP support member

Please reply this question.

Best Regards,
Eishi SHIBUSAWA

Re: D10 diode on MCIMX6DL-SDP

Rita_Wang — Tue, 04 Sep 2018 05:05:01 GMT

Hi Eishi SHIBUSAWA，

I have confirmed it for you that the D10 is used for the VGEN5_2V8, it can avoid the VSNVS_3V0 opposite direction affect the VGEN5_2V8. The D10 diode is need in the design of MCIMX6U5EVM10AD. And customer can refer to our reference design.
Have a great day,
Rita

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