Maximum consumption current when nrf_pwr_mgmt_run

[moon.kim]

I am developing a custom board using nRF52810.

SoftDevice S112 6.0.0 and SDK 15.0.0 are in use.

I want to know the maximum current in Idle state.

Current measurements were taken at idle_state_handle() and ranged from 1.5uA to 1.2uA.
What is the maximum current that can come out of this condition?

[Sigurd]

moon.kim said:

What is the maximum current that can come out of this condition?

It depends on what peripheral(s) you have enabled/running. You could have RTC, TIMER, PWM, UART, etc running, and that will increase the current.

[moon.kim]

Hello

Sigurd.

I disable all peripheral devices before Idle state. And run this:

void nrf_pwr_mgmt_run(void)
{
    PWR_MGMT_FPU_SLEEP_PREPARE();
    PWR_MGMT_SLEEP_LOCK_ACQUIRE();
    PWR_MGMT_CPU_USAGE_MONITOR_SECTION_ENTER();
    PWR_MGMT_DEBUG_PIN_SET();

    // Wait for an event.
#ifdef SOFTDEVICE_PRESENT
    if (nrf_sdh_is_enabled())
    {
        ret_code_t ret_code = sd_app_evt_wait();
        ASSERT((ret_code == NRF_SUCCESS) || (ret_code == NRF_ERROR_SOFTDEVICE_NOT_ENABLED));
        UNUSED_VARIABLE(ret_code);
    }
    else
#endif // SOFTDEVICE_PRESENT
    {
        // Wait for an event.
        __WFE();
        // Clear the internal event register.
        __SEV();
        __WFE();
    }

    PWR_MGMT_DEBUG_PIN_CLEAR();
    PWR_MGMT_CPU_USAGE_MONITOR_SECTION_EXIT();
    PWR_MGMT_SLEEP_LOCK_RELEASE();
}

What is the maximum current in this case?

[Sigurd]

You can find the typical values for different sleep configurations at this link. They are measured at 3V and 25°C. Minimum and maximum values are not listed, since process variations will affect the current consumption of the individual chips. But the maximum should be very close to the typical value listed.