nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

RE: nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

Sam Wang — Mon, 03 Aug 2020 12:45:24 GMT

Ok, thank you for your kind help !

RE: nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

Kaja — Mon, 03 Aug 2020 12:16:58 GMT

Hi Sam,

sorry for the delayed answer, Kenneth is OOO at the moment on summer vaction.

When it comes to power consumption and package type: does not matter, it's the same die.
If you referring to the build code, the newest one is the one that are available at our distributes.

Best regards,
Kaja

RE: nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

Sam Wang — Fri, 17 Jul 2020 09:38:28 GMT

Furthermore, I used the 24LE1E QFN-32 NRF D version chip to test. I want to know what's the difference among the NRF D,NRF B and NRF C version chip? Which version of chip should I choose to use for lower power consumption?

RE: nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

Sam Wang — Fri, 17 Jul 2020 08:21:02 GMT

Hi，Kenneth.It works now! Thank you very much!

RE: nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

Kenneth — Wed, 15 Jul 2020 10:09:18 GMT

Seems like a floating GPIO, try to connect pins to gnd or vdd. Especially look at P1.2 since that is configured as GPIO, make sure it has a proper logic level to avoid it floating.

Best regards,
Kenneth

RE: nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

Sam Wang — Wed, 15 Jul 2020 06:29:09 GMT

Hi,Kenneth.I check out the nRF52832 deep sleep mode code.But the current consumption is still high to 19uA.Could you check my code and give some Improvement measures to reduce the current consumption in deep sleep mode?

#include <reg24le1.h>

void MCU_init(void)
{ 
	P0=0x00;
	P1=0x00;	
	P0DIR = 0x00;
	P1DIR = 0x02; // set P1.2 input
	//Open latch
	OPMCON=0x00;
}
void main()
{			
	MCU_init();
		if(PWRDWN & 0x80) 
       {  
         PWRDWN = 0; 
       } 
 	    WUOPC1 = 0x04;          //  wake up on P1.2 active-high
 	    
 	    while(P12) ;
			 //Lock latch
					OPMCON |= 0x02;
 	        PWRDWN = 0x01;          // deep sleep

				while(1);
	}

RE: nRF24LE1-32 deep sleep mode high current around 10-20uA.How to get the typical current 0.5uA on deep sleep mode?

Kenneth — Mon, 13 Jul 2020 15:07:08 GMT

Check out:
https://devzone.nordicsemi.com/f/nordic-q-a/56912/register-retention-mode-and-wakeup

For new development I recommend to check out the nRF52832.