I'm developing a power source based on a solar panel and a battery.
Basically, during night or rainy days the power comes from the battery. At sun light the power comes from the solar panel (extra power recharge the battery).
Looks like bq2512x has all I need (linear charger, regulated output, load switch and battery voltage monitor), but I'm a quite confusing about the circuit.
- Solar panel is this one -- 5.5V - 90mA
- Battery is this -- 3.7V - 1200mAh
- My device is a Sensor with a Wifi transmitter. Consumes 3.3V - 15mA (200mA peak during 2 seconds, every 5 minutes)
My question is: If my understanding is correct, can someone explain to me the minimum requirements for bq2512x work as I need? Or maybe post a sample circuit with a buck-boost converter and a battery charger in a answer, so we can discuss about it.