In sleep mode，How much is the power consumption of nrf51802？

RE: In sleep mode，How much is the power consumption of nrf51802？

Sigurd — Tue, 14 Nov 2017 12:40:05 GMT

By using __WFE(); __SEV(); __WFE(); you are putting the chip in System ON sleep mode. Here you will use around ~2.8 µA.

If you want to put the chip in System OFF mode, where you use 0.6µ A use

NRF_POWER->SYSTEMOFF = 1;

or with the SoftDevice enabled, use sd_power_system_off().

RE: In sleep mode，How much is the power consumption of nrf51802？

zp — Tue, 14 Nov 2017 09:09:07 GMT

No SDK, while(1){ __WFE(); __SEV(); __WFE(); } what caused different from nrf51802 and nrf51822.

RE: In sleep mode，How much is the power consumption of nrf51802？

Sigurd — Tue, 14 Nov 2017 08:56:07 GMT

Are you using the device in low-voltage mode ? It uses 1 μA more if the device is used in Low voltage mode(powering it from 1.8 V).

RE: In sleep mode，How much is the power consumption of nrf51802？

zp — Tue, 14 Nov 2017 08:40:22 GMT

thank you for your answer .In system on sleep mode，the chip of nrf51802 consumes 2µA more power than nrf51822,Is this a normal parameter, what caused it？

RE: In sleep mode，How much is the power consumption of nrf51802？

zp — Tue, 14 Nov 2017 08:39:53 GMT

thank you for your answer .In system on sleep mode，the chip of nrf51802 consumes 2µA more power than nrf51822,Is this a normal parameter, what caused it？

RE: In sleep mode，How much is the power consumption of nrf51802？

Sigurd — Mon, 13 Nov 2017 09:46:14 GMT

Hi,

The current in SYSTEM OFF mode, with no RAM retention for the nRF51-series is 0.6µA