Intrinsyc LANTRONIX Open-Q 820 User Manual page 26

Domain
Power Probe Header
Haptics Connector
The sections below will provide in depth information on each expansion header and connector on the carrier
board. The information listed below is of particular use for those who want to interface other external hardware
devices with the Open-Q 820 / 820Pro µSOM. Before connecting anything to the development kit, please ensure
the device meets the specific hardware requirements of the processor.
3.9.3 DC Power Input J21
The Open-Q 820 / 820Pro µSOM development kit power source connects to the 12V DC power supply jack
J21. Starting from the power jack, the 12V power supply branches off into different voltage rails via step down
converters on the carrier board and PMIC on the µSOM. The µSOM is powered by 3.8V via a Texas Instrument
step down converter U400 on the carrier board. To ensure the µSOM is getting powered correctly, user can
monitor the current going into the µSOM via the power probe header J86 (see section below).
Open-Q™ 820 / 820Pro µSOM Dev Kit User Guide
Description
3 pin power probe header
2 pin haptics driver header
Open-Q 820 µSOM Development Kit
Specification
Support for 3D
•
camera
configuration
• Separate I2C / CCI
control
MIPI Alliance Specification
v1.00 for Camera Serial
Interface
Sense lines connected
across 0.005 Ohm resistor
Haptics driver output from
PMI8996
Usage
To measure current
consumption of µSOM
For connecting a 2 pin
vibrating motor
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