Dears:
Could you kindly help check the below schematic, why the V7V can not been tested voltage? It is 0V.
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi Luck,
Please refer to Figure 28 in the datasheet. V7V need any of the ENx to start up. In your schematic, EN1 and EN3 were pulled up to V7V, EN2 was pulled down to GND. After VCC12 is applied, there is no ENx signal to start the V7V.
Regards,
Hao