This automotive reference design demonstrates an approach for powering remote, off-board loads, often over coaxial cables (i.e. "phantom power"). This design is capable of protecting against and digitally diagnosing different faults that off-board cabling is susceptible to. Reverse polarity, reverse current, short to-battery, short-to-ground, and thermal shutdown are protected against and diagnosed through I2C and a fault flag. The integrated reverse-current protection does not require an external diode at the output of the device, which saves cost and avoids increasing the dropout voltage.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Ref Design for Four-Channel Antenna LDO With Digital Diagnostics and Protection | Dec. 04, 2017 |
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