Figure 3-2. Type-C Cc Configuration; Table 3-1. Current Sourcing Capability And State Of Usb Type-C Cable; Table 3-2. Power Status Leds - Texas Instruments AM263 Series User Manual

Control card

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Hardware design manual (43 pages)

User manual (62 pages)

Table Of Contents

Table of Contents

Board Setup

The AM263x Control Card's power requirement is 5 V at 3A and if the source is not capable of providing

the required power, the output at the NOR gate becomes low that disables the VBUS_MAIN power switch.

Therefore, if the power requirement is not met, all power supplies except VSYS_TA_3V3 will remain in the off

state. The board gets powered on completely only when the source can provide 5 V at 3A.

Table 3-1. Current Sourcing Capability and State of USB Type-C Cable

OUT1

The AM263x Control Card includes a power solution based on discrete regulators for each of the power rails.

During the initial stage of the power supply, 5V supplied by the type-C USB connector is used to generate all of

the necessary voltages required by the Control Card.

Discrete DC-DC buck regulators are used to generate the supplies required for the AM263x system on a chip

(SoC) and other peripherals

One DC-DC buck regulator (TPS54334) is used to generate the 3.3 V supply from the main 5V supply. The

3.3V supply is then used as Vin for two different DC-DC buck regulators: 1.2V supply (TPS62826), and 1.7V

VPP supply (TPS75801). The test automation header's 3.3V supply is generated by one DC-DC buck regulator

(TPS62177) from the main 5V supply.

3.1.2 Power Status LEDs

Multiple power-indication LEDs are provided on-board to indicate to users the output status of major supplies.

The LEDs indicate power across various domains as shown in the table below.

Name

Default Status

LD16

LD15

LD14

LD1

LD6

LD7

AM263x Control Card Hardware User's Guide