Automotive eCall Power Supply Reference Design with High Intermediate Voltage
PMP9768
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Description
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.
Features
- Complete power solution for an automotive eCall system
- Operating input voltage range up to 40V
- Provides supply voltage for all required eCall functional blocks
- Up to 87% total efficiency while operating at backup power
- Up to 84% total efficiency in standby at backup power
- All DC/DC converters used can operate at switching frequencies above 2MHz
See the Important Notice and Disclaimer covering reference designs and other TI resources.
