• Resolved

TCA9617A: I2C bus stub too long

Part Number: TCA9617A

Currently our I2C bus/PMbus (between BMC and PSU) has "master-abnormal stop-start" issue, some PSU bus information can't be read out sometimes. We have four BMC connected to PSU, then the I2C bus stub is long,  the I2C clock waveform has a drop when clock rise from low state to high state. Now I want to reduce the stub to reduce the reflection, I tried 9617A, it seems not good, any other chip can be used to reduce the stub (cut the I2C bus completely)?