Other Parts Discussed in Thread: TPS65721 DEARS.
1. If PB_IN is applied during the operation? 2. Does PB_IN Timing starts again from the beginning?
3. How To Reset the TPS65721? Because the need to control the output of the DC/DC output and LDO output…
Hi,
What is the frequency of the oscillation? This frequency should point towards the source of the problem.
Is there anything else running on the board at the time of the ringing? If there is a large current draw and if layout is problematic the GND can…
PB_IN is for the power after the battery has been removed or on first power up. You can monitor PB_IN with a uC and shutdown LDO and DCDC to reset. This would be good for a requirement of say 5s hold time initiates a shutdown event...
