ADRD5161 Hardware Guide

Todo

Board image with annotations

Block Diagram

../../../_images/hw_block_diagram.png

Figure 1 Schematic Block Diagram

TODO: add block diagram vs board top photo with main parts encircled + description

Connectors

TODO: add picture with board + description of connectors

CAN cable

The ADRDx161 board family communicates via CAN bus. The two headers P8, P9 allow for daisy-chaining CAN devices.

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cellspacing="0" cellpadding="0"> <tr><td> <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr> <td balign="left">X2</td> </tr></table> </td></tr> <tr><td> <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr> <td balign="left">Molex: 430250400</td> </tr></table> </td></tr> <tr><td> <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr> <td balign="left">Micro-Fit 3.0</td> <td balign="left">Receptacle</td> <td balign="left">4-pin</td> </tr></table> </td></tr> <tr><td> <table border="0" cellspacing="0" cellpadding="3" cellborder="1"> <tr> <td port="p1l">1</td> <td>CANH</td> <td sides="tbl">YE</td> <td sides="tbr"> <table border="0" cellborder="1"><tr> <td bgcolor="#FFFF00" width="8" height="8" fixedsize="true"></td> </tr></table> </td> </tr> <tr> <td port="p2l">2</td> <td>CANL</td> <td sides="tbl">OG</td> <td sides="tbr"> <table border="0" cellborder="1"><tr> <td bgcolor="#FF8000" width="8" height="8" fixedsize="true"></td> </tr></table> 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Output Power

Maximum Output Current when USB-C adapter is not plugged in:

  • Maximum Continuous Discharge Current is 20A and Surge Discharge Current is 50A (for ~200us)

  • The Maximum Output Current is also limited by the battery pack used.

Maximum Output Current when USB-C is Plugged in:

  • 1.7A if USB-C AC/DC Adapter supports 20V/3A PDO and Charging Constant Current is se to 3A

  • 4.9A if USB-C AC/DC Adapter supports 20V/5A PDO and Charging Constant Current is set to 3A.

Maximum Output Voltage:

  • By default, the LTC4421 power path controller prioritizes the output from the USB-C AC/DC adapter. This configuration ensures that the system draws power from the adapter rather than from the battery during charging. Conseqeuently, the maximum output voltage corresponds to the adapter’s output, typically up to 20V.

  • USB-C VBUS output power path can be disabled via software control.

USB-C Adapter

  • MAX77958 software and hardware configuration negotiates on VBUS only 20V if the USB-C AC/DC adapter can provide at least 3A minimum at 20V. To modify the configuration to negotiate other PDOs, refer to EVAL-CN0581-EBZ User Guide.

  • Recommended AC/DC USB-C adapter: multicomp MP009261 (supports 20V/3A).

  • For increasd output current when the battery is charging, use an AC/DC USB-C adapter that supports 20V/5A PDO. For a 20V/5A PDO make sure that the cable used from the AC/DC adapter to the board is specified for 5A current.

Led Indicators

TODO: describe onboard leds + photo with board with leds encircled

Design and Integration Files

TODO: add schematics, PCB Layout, Bill of Materials, Allegro Project