This reference design incorporates a power-over-coax (POC) filter network, mid-Vin synchronous step-down DC/DC converter and low-Vin power management IC (PMIC) to demonstrate typical automotive camera power within an 18 mm x 18 mm footprint. The design accepts both data and power from a coaxial cable using a Fakra connector, isolates data from the loads using a low-pass filter network and supplies sequenced output voltages that can be adjusted with external feedback resistors.
| Output voltage options | TIDA-01491.1 | TIDA-01491.2 | TIDA-01491.3 | TIDA-01491.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 4.5 | 4.5 | 4.5 | 4.5 |
| Vin (Max) (V) | 17 | 17 | 17 | 17 |
| Vout (Nom) (V) | 3.3 | 1.8 | 1.2 | 2.8 |
| Iout (Max) (A) | 1 | .6 | .3 | .3 |
| Output Power (W) | 3.3 | 1.08 | .36 | .84 |
| Isolated/Non-Isolated | Non-Isolated | Non-Isolated | Non-Isolated | Non-Isolated |
| Input Type | DC | DC | DC | DC |
| Topology | Buck- Synchronous | Buck- Synchronous | Linear Regulator | Linear Regulator |
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 | Automotive Camera PMIC Power Supply Reference Design With Power Over Coax Filter | Jan. 23, 2018 | |
| Technical article | How to power next-generation ADAS camera modules | PDF | HTML | Sep. 11, 2018 |
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