Sparkfun TPL5110 Nano Power Timer using way too much power when idle

Components & Accessories Power
1

I am having a significant issue with the Sparkfun TPL5110 Nano Power Timer in that it appears to be using way too much power when idle.

I have set it up such that it is being power via the power in pins on the board (not the battery input).

It is working well, in that it passes the power thru to the ESP32 board at startup, and disconnects the power to the ESP32 after the ESP32 triggers the Done pin on the board, then enter its ‘idle’ stat until the timer expires, and then re-powers the ESP32 after the end of the idle period.

The problem is however, when idle, it is using around 36.9mA (that’s an m for milli) instead of what it says on the product web page

the Nano Power Timer will only consume 35nA of power until the timer turns the project back on again

(that’s a n for nano).

I’ve measured that with a Nordic Power Profiler II - here is a screen shot:

[

Any idea what I might be doing wrong?](ss hosted at ImgBB — ImgBB)

2

RobLatour:
I am having a significant issue with the Sparkfun TPL5110 Nano Power Timer in that it appears to be using way too much power when idle.

I have set it up such that it is being power via the power in pins on the board (not the battery input).

It is working well, in that it passes the power thru to the ESP32 board at startup, and disconnects the power to the ESP32 after the ESP32 triggers the Done pin on the board, then it enter its ‘idle’ stat until the timer expires, and then re-powers the ESP32 after the end of the idle period.

The problem is however, when idle, it is using around 36.9mA (that’s an m for milli) instead of what it says on the product web page

the Nano Power Timer will only consume 35nA of power until the timer turns the project back on again

(that’s a n for nano).

I’ve measured that with a Nordic Power Profiler II - here is a screen shot:

[

Any idea what I might be doing wrong?
[/quote]](ss hosted at ImgBB — ImgBB)

3

actually i found another way to monitor this and got much better results - around the advertised numbers.