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PCA10001 Power consumption

Dani

Good afternoon,

I'm trying to test PCA10001 eval board power consumption and consumption is about 4mA when it should be considerably lower. To proceed with this measurement I have first cut the SB8 soler bridge and I use an ampere-meter between pin 1 and 2 of P1. Furthermore, after flashing the board, I have switched it off and I have set SW4 to OFF position to switch off J-Link. I have tried with several demos (last one is 'ble_app_hrs') and I still have 4mA power consumption: I switch on board (I have tried with external battery and with USB) and I wait it to finish advertising time to go to system-off mode. In system-off I have these 4mA!!! Do you know which is the problem? Thanks!

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    Furthermore, with module in System ON and going to sleep I get about 20uA power consumption: I guess this is the 16MHz power consumption, right? In system-on, is it possible to decrease power consumption? Because, if I'm working with S110 Softdevice, 16/32MHz crystal is required, right?

    Regards,

    Dani.

  • 0 in reply to Dani

    In fact, 20uA is in System-ON, Connected with BLE to master (PCA10000 in Eval-Kit) and going to sleep with 'sd_app_evt_wait()': so, device is only waking up when an event occurs. Internally (in terms of SoftDevice), I guess that device (even sleeping from application point of view) is sending something in order to mantain connection, right? This would explain my 20uA consumption...

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  • 0 in reply to Dani

    In fact, 20uA is in System-ON, Connected with BLE to master (PCA10000 in Eval-Kit) and going to sleep with 'sd_app_evt_wait()': so, device is only waking up when an event occurs. Internally (in terms of SoftDevice), I guess that device (even sleeping from application point of view) is sending something in order to mantain connection, right? This would explain my 20uA consumption...

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