This article describes a battery manager that enables integrated, efficient, scalable, and testable backup power systems. The battery manager ensures the safety of critical data in the event of a power failure and allows for flexible scalability based on the system's scale.
The document introduces the LTC4110 as a solution to preserve transient data in RAM during power failures. It contrasts traditional inefficient AC-level UPS solutions with a new paradigm of tightly integrated, efficient battery backup directly inside the information system chassis.
The text details three basic subsystems required for a complete solution: battery charger, PowerPath management, and status reporting. The LTC4110 integrates these functions into a single IC, offering features such as multi-chemistry support (Li-ion, NiMH, Lead Acid), automatic switching between power sources, gas gauge support, and redundancy capabilities.
The battery charger supports rates of up to 3A.
The charger has an input range of 4.5V to 19V.