Energy Harvesting PMIC for Wireless Sensor Node

The S6AE102A/103A is a power management IC (PMIC) for energy harvesting that is built into circuits of solar cells connected in series, dual output power control circuits, output capacitor storage circuits, power switching circuits of primary batteries, a LDO, a comparator and timers. Super-low-power operation is possible using a consumption current of only 280 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. This IC 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
◾ Operation input voltage range
   □ Solar cell power : 2.0V to 5.5 V
   □ Primary battery power : 2.0V to 5.5 V
◾ Adjustable output voltage range : 1.1V to 5.2V
◾ Low-consumption current : 280 nA
◾ Minimum input power at startup : 1.2 μW
◾ Low-consumption current LDO : 400 nA
◾ Low-consumption current Timer : 30 nA
◾ Low-consumption current comparator : 20 nA (S6AE103A
   only)
◾ Hybrid control of solar cell and primary battery with power
   path control
◾ Solar powered power control without battery
◾ System power reduction control with power gating
◾ Power gating control with interrupt signal
◾ Power gating control with timer (S6AE103A only)
◾ Hybrid storage system for a storage of system load and a
   storage of surplus power
◾ Power supply and switch control signal output for external
   path switch control
◾ Input over voltage protection : 5.4V
◾ Compact QFN-20/QFN-24 package : 4 mm × 4 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