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Vybrid VBAT power issue

Question asked by ccarlos on Jul 17, 2013
Latest reply on Aug 26, 2013 by Naoum Gitnik

On our boards with mounted PVF60GS151CMK40 Rev C2 and PVF61NN151CMK50 1N02G the VBAT pin consumes 1-2mA instead the 45uA from datasheet, if the main power is switched off. Also on our Tower board with CPU Test Rev A5 the current is ~90uA. Is there any issue?Does anyone else have this problem?

Needs any CPU internal block connected on VBAT a configuration to reduce this current (e.g. SRTC)?

We already set SOSC_EN to 1 on first start and OSC32K is working. Also RTC is running.

We dont measure any voltage on Tamper pins. Any idea to fix this?

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