This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not available. It includes power path management which routes the available power rail directly to four DC/DC converters which are supplying the required functional blocks of the eCall system. The solution is optimized to operate at maximum efficiency while powered from the backup battery.
| Output voltage options | PMP9768.1 | PMP9768.2 | PMP9768.3 | PMP9768.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 5 | 5 | 5 | 5 |
| Vin (Max) (V) | 40 | 40 | 40 | 40 |
| Vout (Nom) (V) | 3.8 | 1.8 | 5 | 9 |
| Iout (Max) (A) | 2 | 1 | 1 | 1 |
| Output Power (W) | 7.6 | 1.8 | 5 | 9 |
| Isolated/Non-Isolated | Non-Isolated | Non-Isolated | Non-Isolated | Non-Isolated |
| Input Type | DC | DC | DC | DC |
| Topology | Buck- Integrated Switch | Buck- Integrated Switch | Buck- Integrated Switch | Sepic- Integrated Switch |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
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 | |
|---|---|---|---|
| Test report | PMP9768 Test Results | Feb. 22, 2016 |
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