About the static current of nRF52832-QFAA at the temperature of 60℃ and 25℃

RE: About the static current of nRF52832-QFAA at the temperature of 60℃ and 25℃

Kenneth — Wed, 02 Apr 2025 09:15:08 GMT

Between chips the leakage current at higher temperatures can vary quite a lot yes.

Kenneth

RE: About the static current of nRF52832-QFAA at the temperature of 60℃ and 25℃

kenlove — Mon, 31 Mar 2025 05:53:13 GMT

Hi,

The test is based on nRF5SDK. I understand what you mean. PORT event consume less power.

I just want to make sure. Under the same conditions, is it normal for the static power consumption to fluctuate between 18-28ua?

Best regards,
Kenlove

RE: About the static current of nRF52832-QFAA at the temperature of 60℃ and 25℃

Kenneth — Thu, 27 Mar 2025 12:03:12 GMT

Hello,

The leakage current in the chip is very temperature dependent, so all sleep currents will rise as temperature rise yes. So this is normal. The active currents are also affected, but since the leakage current is in the uA range, the increase is not to the same degree observable.

That said, the idle current you measure at 25C is high, you should expect around 3-4uA if you only have enabled wakeup from pin. Maybe you can share the code snippet you used during test. I suspect you may have configured pin wakeup with IN event instead of PORT event, this is configurable by adding sense-edge-mask in the devicetree for the pins you want to have wakeup.

Kenneth