Use the following steps for reverse/OTG/source mode verification:
- Turn off and disconnect PS #1.
- Set Load #1, the battery simulator, to 7V and 2A current limit.
Note: If Load #1 connected from J3 BAT to GND is not a four quadrant supply, then remove Load #1 and use PS #1, replace with 7V, 2 A current limit.
- In the EVM software on the 16-bit tab, confirm that VIN_REV, the reverse mode regulation voltage, is set to 5000 mV and IIN_REV, the reverse mode output current limit, is set to 1000 mA.
- In the EVM software in the 8 Bit Chip Single-bit section
- Uncheck EN_BAT_DETECT
- Check EN_REV
- Connect disabled Load #2 across J2 VPWR and PGND
- Set Load #2 to 500 mA constant current load and the turn on the load.
- To confirm the reverse regulation,
- Measure→ VBUS = 5000 mV + 155 mV
- Turn off and disconnect the power supply.
- Remove Load #2 from the connection.