Make sure the evaluation board has default jumper settings as shown in 3.
Table 3-1 Default Jumper Setting for TPS4800Q1EVM Evaluation Board Follow the below instructions before starting any test and repeat again before moving to next test.
- Set the power supply output (VIN) to zero volts.
- Turn ON the power supply and set the power supply output (VIN) to 48 V, current limit = 20 A.
- Turn OFF the power supply.
- Set the jumper setting on EVM to default position as shown in 3.