I couldn't find the TI Design page for the PMP7647 board. However, I did find the TIDA-00120 Solar MPPT Charge Controller product page. This design is capable of around twice the output current of the PMP7647 board, but you can download all the related collateral, including the BOM, schematic/design files, and the software from the product page. Please keep in mind that EVMs for TI Designs are not available for purchase. For your power requirements, I'd make sure your solar panel can output enough power to the system, although if the system is off for extended periods of time, the battery should be able to power the system when active and then get charged back up from the solar panel. You'll have to calculate the input power and output power based on the different voltage levels (and currents at those voltages; remember power conservation principles) and conversion efficiency between these levels. For the TIDA-00120 , the expected efficiency is greater than 95%. After reading through the Description section in the Test Results document , this design has built-in battery charge profiles for LEAD ACID batteries, not AGM. Looking at the Block Diagram on page 3 in the Test Results document , the MSP430 should be able to cut-off the load based on the battery voltage. For signalling, there are several status and alarm indicators that are programmable but were not configured in this design. I'd recommend looking through the provided software. Regards, James MSP Customer Applications
↧