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Board Setup
3 Board Setup
3.1 Power Requirements
The AM273x EVM is powered through a barrel jack connection. The power source must be capable of providing
2.5A at 12V. The length of the power cable must be < 3m.
External Power Supply or Power Accessory Requirements:
Nom Output Voltage: 12VDC
Max Output Current: 2500mA
Efficiency Level V
TI recommends using an external power supply or power accessory which complies with applicable
regional safety standards such as (by example) UL, CSA, CDE, CCC, PSE, etc.
The following power supply has been tested to work with the AM273x EVM:
https://www.digikey.in/product-detail/en/cui-inc/SDI65-12-U-P5/102-3417-ND/5277850
The AM273x EVM includes a power design based on a power management integrated circuit (PMIC) to bring up
the power rails according to the power on timing specifications and a LM61460 step-down converter to power the
radar front end connector supplies
3.1.1 Power Status LEDs
Multiple power-indication LED's are provided on-board to indicate to users the output status of major supplies.
Name
Default Status
D12
ON
D16
ON
D13
ON
D2
ON
For further information on the TMDS273GPEVM LEDs, please see
8
AM273x Evaluation Module
Note
Figure 3-1. Barrel Jack Connector (J12)
Table 3-1. Power Status LED's
Operation
VBAT_INT
Power indicator for 12V barrel jack supply input
PMICOUT_5V0
Power indication for 5V PMIC output
nRESET
Indication of nRESET pin. If LED is glowing, the device is out of reset
5V_FE
Power indicator for 5V FE connectors
Copyright © 2024 Texas Instruments Incorporated
Function
Section
3.4.
SPRUIY1B – NOVEMBER 2020 – REVISED FEBRUARY 2024
www.ti.com
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