S6AE101A 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 W. 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. If the power generated from solar cells is not enough, energy can also be supplied in the same way as solar cells from connected primary batteries for auxiliary power. Also, an over voltage protection (OVP) function is built into the input pins of the solar cells, and the open voltage of solar cells is used by this IC to prevent an overvoltage state. The S6AE101A is provided as a battery-free wireless sensor node solution that is operable by super-compact solar cells. Features Block Diagram Input power selection control: Solar cell or primary battery Operated by solar cells without the need for primary batteries Battery S6AE101A System (Optional) Storage of energy from power supply to storage capacitors Load Power Gating Switch Output power gating control, output voltage regulation Multiplexer Storage Operation input voltage range Control Solar cell power : 2.0V to 5.5V Solar Cell Primary battery power : 2.0V to 5.5V Over Voltage Protection Adjustable output voltage range : 1.1V to 5.2V Control Voltage Block Low-consumption current : 250 nA Reference Minimum input power at startup : 1.2 W Circuit Input overv oltage protection : 5.4V Compact SON-10 package : 3 mm3 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 Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 002-08493 Rev. *D Revised October 25, 2018 S6AE101A Contents Features ................................................................................................................................................................................... 1 Applications ............................................................................................................................................................................ 1 Block Diagram......................................................................................................................................................................... 1 1. Pin Assignment ................................................................................................................................................................. 3 2. Pin Descriptions ................................................................................................................................................................ 3 3. Architecture Block Diagram ............................................................................................................................................. 4 4. Absolute Maximum Ratings ............................................................................................................................................. 5 5. Recommended Operating Conditions ............................................................................................................................. 5 6. Electrical Characteristics ................................................................................................................................................. 6 7. Functional Description ..................................................................................................................................................... 7 7.1 Power Supply Control .................................................................................................................................................... 7 7.2 Power Gating ............................................................................................................................................................... 14 7.3 Discharge .................................................................................................................................................................... 14 7.4 Over Voltage Protection (OVP Block) .......................................................................................................................... 14 8. Application Circuit Example and Parts list ................................................................................................................... 15 9. Application Note.............................................................................................................................................................. 16 9.1 Setting the Operation Conditions ................................................................................................................................. 16 9.2 PCB Layout ................................................................................................................................................................. 17 10. Development Support ..................................................................................................................................................... 17 11. Reference Data ................................................................................................................................................................ 18 12. Usage Precaution ............................................................................................................................................................ 20 13. RoHS Compliance Information ...................................................................................................................................... 20 14. Ordering Information ...................................................................................................................................................... 20 15. Package Dimensions ...................................................................................................................................................... 21 16. Major Changes ................................................................................................................................................................ 22 Document History ................................................................................................................................................................. 22 Sales, Solutions, and Legal Information ............................................................................................................................. 23 Document Number: 002-08493 Rev. *D Page 2 of 23