TMAG5273: Specification of the pulse width of the INT when changing from Sleep Mode to Standby mode

Hi Susami-san,

Thank you for posting to the Sensors forum!

Hiromu Susami said:

Q1. Is there any requirement for the pulse width of the INT signal when changing from Sleep Mode to Standby mode?

Using an EVM that I had on hand, it seemed to be that a pulse of at least 50ns had to be used to wake up the device from sleep mode (the device did not respond to anything less). Once initially awoken, the INT pin will remain low until it has fully transitioned to standby mode, as described in the datasheet. The waveforms below shows the INT pin's response to a 50ns and 100ns pulse after being put into sleep mode.  

50ns Pulse:

100ns Pulse:

Hiromu Susami said:

Q2.  Datasheet 5.5 shows t_INT = 10us(typ). What is this mean? Does it refer to the pulse width of the "interrupt through INT" in the figure 6-4? 

Yes, the t_INT spec refers to the INT pulse that will be generated by the device if using a fixed width interrupt.

Best,

~Alicia