Category: Hardware
Product Number: MAX25561
Hi,
There is no output from MAX25561
1. The output of NGATE comes out and drops to 0V and the output of BOOST is not further boosted at 12V (see waveform).
2. The symptoms are the same even if D-S of NGATE is shorted.
3. Even if the Input Current Sensing resistance is shorted, the symptoms are the same (without input Input current monitoring)
4. V1.8 and V5, DIM outputs normally
5. NDRVS Pin is the same even if shorted with the Gate of Q2 (circuit design mistake)
6. With ISET set to resistance, EVB operates normally, but our board does not produce boost output.
# Attached circuit diagram and PCB file
# Additionally, the issue of EVB not being connected to the PC. Do I need a PICO Driver?
