Energy Harvesting PMIC for Wireless Sensor Node

The S6AE101A is a power management IC (PMIC) for energy harvesting that is built into circuits of solar cells connected in series, output power control circuits, output capacitor storage circuits, and power switching circuits of primary batteries. Super-low-power operation is possible using a consumption current of only 250 nA and startup power of only 1.2 µW. As a result, even slight amounts of power generation can be obtained from compact solar cells under low-brightness environments of approximately 100 lx. The S6AE101A stores power generated by solar cells to an output capacitor using built-in switch control, and it turns on the power switching circuit while the capacitor voltage is within a preset maximum and minimum range for supplying energy to a load. 

FEATUREs
◾ Input power selection control: Solar cell or primary battery
◾ Operated by solar cells without the need for primary batteries
◾ Storage of energy from power supply to storage capacitors
◾ Output power gating control, output voltage regulation
◾ Operation input voltage range
   □ Solar cell power : 2.0V to 5.5V
   □ Primary battery power : 2.0V to 5.5V
◾ Adjustable output voltage range : 1.1V to 5.2V
◾ Low-consumption current : 250 nA
◾ Minimum input power at startup : 1.2 µW
◾ Input overv oltage protection : 5.4V
◾ Compact SON-10 package : 3 mm× 3 mm

APPLICATIONs
◾ Energy harvesting power system with a very small solar cell
◾ Bluetooth® Smart sensor
◾ Wireless HVAC sensor
◾ Wireless lighting control
◾ Security system
◾ Smart home / Building / Industrial wireless sensor