nRF5340 BLE beacon/peripheral low power configuration

[thaonguyen]

Hello,
I am developing nRF5340, the project is pre-production.
I am getting a issue with BLE power consumption, when I turned BLE on, the current is about 9uA. with BLE beacon On then the current is about 240uA
My settings:
prj.conf

CONFIG_BT=y
CONFIG_BT_SMP=y
# CONFIG_BT_SETTINGS=y

CONFIG_IPC_SERVICE=y
CONFIG_MBOX=y
CONFIG_BT_HCI_RAW=y
CONFIG_BT_HCI_RAW_RESERVE=1
CONFIG_BT_MAX_CONN=16

child_image hci_rpmsg.conf

CONFIG_LOG=n
CONFIG_SERIAL=n

CONFIG_RPMSG_SERVICE=y
CONFIG_RPMSG_SERVICE_MODE_REMOTE=y

CONFIG_HEAP_MEM_POOL_SIZE=8192

CONFIG_MAIN_STACK_SIZE=512
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=512
CONFIG_BT=y
CONFIG_BT_HCI_RAW=y
CONFIG_BT_MAX_CONN=16
CONFIG_BT_CTLR_ASSERT_HANDLER=y
CONFIG_BT_HCI_RAW_RESERVE=1

CONFIG_ASSERT=y
CONFIG_DEBUG_INFO=y
CONFIG_EXCEPTION_STACK_TRACE=y

I am not sure about the configuration. I would like to have any help to improve the power.

Thank you so much!

[thaonguyen]

Sorry, I missed.
when BLE is off, the current is about 9uA.

with BLE beacon On then the current is about 240uA

[Ressa]

Hi Thao,

Is 240 uA the average current including the current consumption during beacon transmission? or it is the average current between the beacons?  Are you using Nordic Power Profiler Kit ? If yes, then please sharing the screen shot of window.    

[thaonguyen]

Hi Ressa,
240uA is average current included beacon transmission every 2 seconds.
when I turned BLE off then the current is 9uA
I used nRF52, the current is about 25uA, so I hope nRF5340 is similar

[Ressa]

Hi Thao,

Can you save the current profiles graph in a file ( for around 20 seconds) and share it with me ? Also can you share the source code you are programming to the chip ? Also please note that nRF52 and nRF5340 will not have the same current. 

[thaonguyen]

Hi Ressa,
I saw someone they can use BLE advertising data with current is less than 80uA. so I hope my device is same.
because when I turned BLE off the current is 9uA, so BLE is using about 240uA (total 250uA). this is too high.
Please see the attachments below 

thao-ble-power-ppk2-20250704T120935.ppk2nrf5340-ble-power.rar