Part Number:TPL5010
Hi,
I am evaluating the TPL5010 for a timing circuit. I can see from the thread here https://e2e.ti.com/support/clocks/f/48/t/549435 that
"The output pulse on the WAKE pin is only seen if a DONE signal is received from the MCU within the required time period. The WAKE signal is normally low unless otherwise triggered by the receiving of a DONE"
and
"The TPL will not output a WAKE if no DONE input is received. Instead, a periodic RSTn signal will take place."
Currently my setup has DONE tied to GND via a 10K resistor. The TPL will vary between outputting pulses on the WAKE signal and pulse on RST. It also sometimes does neither, with WAKE sitting low and RST sitting high. The circuit will run outputting RST pulses, then stop outputting them, then may recommence or else start outputting pulses on WAKE. This all happens with no outside influence, a scope probe attached to WAKE, RST and DONE.
I would like to be able to rely on a consistent pulse coming from either WAKE or RST, but it doesn't seem to be happening. I would greatly appreciate advice on how to resolve this issue.
Regards,
Jason