Dear TI Team,
The TPS61158 is designed and in use.
VCC: 5V
Vout: 18V
LED Load: 10mA
In the process of producing and testing the board, Anode / Gnd is measured by the tester with no load on the output and tested.
However, the chip dead with the OVP symptom without load.
After changing the test environment and loading the output, I confirmed that it operates normally in the same environment.
I want to check if the TPS61158 product can have a problem when it is open load.
Attach schematics and measurement waveforms.
CTRL Waveform
Output Load Waveform
Output Open Load Waveform
I would like to know why Chip dead.
Thanks.