SPRUJ40C may 2022 – may 2023
AM62x SKEVM can be powered through either of the two USB Type C Connectors –
The AM62x SK EVM supports voltage input ranges of 5 V - 15 V and 3A of current. A USB PD controller Mfr. Part# TPS65988DHRSHR is used for PD negotiation upon cable detection to get necessary power required for the board. Connector 1 is configured to be an UFP Port and has no Data role. Connector 2 is configured as a DRP port, it can act as DFP only when the board is being powered by Connector 1. When both the connectors are connected to external power supply, the port with highest PD power contract will be selected to power the board.
J11(UFP) | J13(DRP) | Board Power | Remarks |
---|---|---|---|
Plugged in | NC | ON - J11 | J11 will be UFP and will only sink power and J13 can act as DFP if a peripheral is connected |
NC | Plugged in | ON - J13 | J13 will be UFP and can only sink power |
Plugged in | Plugged in | ON - J11 or J13 | Board will be powered by the port with highest PD power contract |
The PD IC uses a SPI EEPROM to load the necessary configuration on power up so it can negotiate a power contract with a compatible power source.
The configuration file is loaded to the EEPROM using header J22. Once the EEPROM is programmed the PD obtains the configuration files via SPI communication. Upon loading the configuration files the PD negotiates with the source to obtain the necessary power requirement.
Power indication LEDs are provided for both the Type-C connectors for the user to identify which connector is powering the SKEVM Board.
An external power supply (Type-C output) can be used to power the EVM but is not included as part of the SKEVM kit.
The external power supply requirements (Type-C) are:
Minimum Voltage: 5 VDC, Recommended Minimum Current: 3000 mA
Maximum Voltage: 15VDC, Maximum current: 5000 mA
DigiKey Part No. | Manufacturer | Manufacturer Part No. |
---|---|---|
1939-1794-ND | GlobTek, Inc. | TR9CZ3000USBCG2R6BF2 |
Q1251-ND | Qualtek | QADC-65-20-08CB |