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  • Case ID: 358082
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High Current Consumption (6.3mA) in System OFF with SQSPI Enabled on nRF54L15

Ghazi-Faisal

Hi nordic team,
I have tried enabling SQSPI on the system off sample, but the power consumption jumped to 6.3mA in system off mode; I tried to disable the cpulfpr core but couldn't find anything, so I have attached my sample code with system off and sqspi enabled to help identify why the current remains so high.
Regards,

1581.system_off.zip

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  • 0

    Hi,

     

    In system off mode, the cores are switched off, and the system should be in sleep mode.

    If you see excessive current draw at this point, I would recommend that you look into your gpio states, specifically the CSN pin in this case. This should be high in idle state.

    Are you testing on a custom board or a nRF54L15-DK?

     

    Kind regards,

    Håkon

  • 0 in reply to Håkon Alseth

    Could you clarify if you are referring to the CSN (Chip Select) pin? If so, yes, it remains HIGH during System OFF mode.

    I am currently building for the nrf54l15 target, and my custom board uses the same flash IC and the same configuration as the DK.

    For context, this is a custom board. The baseline consumption is 2.6 µA when the flash is not in use, so the 6.3 mA draw appears specifically linked to the SQSPI being enabled.

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  • 0 in reply to Håkon Alseth

    Could you clarify if you are referring to the CSN (Chip Select) pin? If so, yes, it remains HIGH during System OFF mode.

    I am currently building for the nrf54l15 target, and my custom board uses the same flash IC and the same configuration as the DK.

    For context, this is a custom board. The baseline consumption is 2.6 µA when the flash is not in use, so the 6.3 mA draw appears specifically linked to the SQSPI being enabled.

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