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|Intersil Battery Charger Extends Backup Battery Life of Automotive eCall Systems|
Automakers worldwide are installing eCall in their Vehicle to Infrastructure (V2I) systems. In the event of a crash, the eCall system automatically broadcasts its location via GPS and contacts the nearest 24-hour emergency call center for help. Thus, V2I eCall systems must be capable of operating reliably and autonomously from the backup battery at a moment's notice, even if the vehicle is involved in an accident minutes after being parked for several months.
The ISL78693 battery charger is designed to support emerging worldwide eCall systems such as
The ISL78693's battery temperature monitoring and low 3.6V output voltage helps safeguard and extend the life of popular LiFePO4 batteries. The ISL78693 offers a much simpler and easier to use solution than the competition, requiring only five external passive components to program the full charging platform. The ISL78693's tiny 3mm x 3mm DFN package easily fits on space-constrained PCBs, creating a very robust, small footprint design. It also offers a unique charge current thermal foldback feature that prevents overheating by automatically reducing the battery charging current to enhance reliability.
"Carmakers want an automotive-qualified battery charger that prevents rapid discharging of the backup battery during a traffic accident or when the vehicle is parked for an extended period of time," said
Features and Specifications:
The 3.6V ISL78693 is pin-compatible with the 4.1V ISL78692 Li-ion battery charger. Either charger can be combined with the ISL78268 55V synchronous buck controller, ISL78201 2.5A synchronous buck/boost regulator, ISL78206 2.5A synchronous buck regulator, and ISL78233 3A synchronous buck regulator to provide a full power supply solution from 12V lead acid battery to eCall battery.
Pricing and Availability
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Mark Alden, Intersil Corporation, (408) 546-3402, email@example.com