EM8504
Description
The EM8504 is an integrated power management solution for low power applications. It is specifically designed for efficient operation with Dye-Sensitized Solar Cells (DSSC) in the µW to m W range.
To optimize harvesting efficiency, the EM8504 incorporates a maximum power point tracking (MPPT) controller based on a fixed Voltage at Maximum Power Point (VMPP).
The device is designed to speed-up system start-up time when the main energy storage element (aka Long Term Storage
- LTS) is pletely discharged or insufficiently charged to supply the application, by using a secondary energy storage element (Short Term Storage
- STS).
When using a non-rechargeable primary battery the EM8504's onboard PMU offers a mechanism to extend battery life when assisted by a harvesting element.
The EM8504 incorporates a boost converter able to start with an input voltage as low as 300 m V and an input power of few μW.
In functional mode the EM8504 operates at energy levels from a DC harvesting...
