Other Parts Discussed in Thread: TIDA-010057
One customer is create LM3488 board the same as TIDA-010057 design.
At first, start up was not completed.
Waveform is attached below;
I guess that the reason is insufficient input current from 5V input source.
When RSEN (TIDA-010057's R41) changed 0.05Ω to 0.1Ω, this problem was cleared and normal operation.
Please let me know about three points below about current limit setting;
・Is these start up problem on default TIDA-010057 with insufficient input current, valid operation or not?
・Is there any risks for change the large RSEN value?
・About the idea for normal start up, which is recommend for change the RSEN value or RSL (TIDA-010057's R38) value?
If there any other idea, please let me know.
Best regards,
Satoshi