2.5 Power
You supply power to the board from the mains supply using the on‑board power jack and the connector
cable that Arm supplies with the board.
Arm supplies an external power supply unit that converts mains power to 12V 5A DC and connects to
the 12V jack on the board. The unit accepts mains power in the range 110V AC to 240V AC.
Caution
If you supply your own external mains adapter, it must be a Low‑Power Source (LPS). Some adapters
are marked LPS on their rating label. Otherwise it might be necessary to consult you adapter supplier to
ensure that it meets this criterion.
Alternatively, you can connect an external 12V DC supply, +/- 10%, directly to the 12V connector.
Caution
Any external 12V DC +/- 10% power supply that is used must be a limited power source, maximum
5amps.
On‑board regulators supply power to the board power domains and to the FPGA power domains.
Note
The following on‑board LEDs illuminate when power is applied:
• 12V OK. External 12V DC connected.
• SB_3V3 OK. On‑board 3V3 supply asserted.
• PWR ON. On‑board 5V supply asserted.
Related information
A.9 12V power connector on page Appx-A-87
1.3 Location of components on the MPS3 board on page 1-15
2 Hardware description
2.5 Power
100765_0000_04_en Copyright © 2017–2020 Arm Limited or its affiliates. All rights
reserved.
2-27
Non-Confidential
To Next Page
Loading...
Need help?
General
