The AEM10940 is an integrated energy management subsystem that extracts DC power from PV cells or TEGs to simultaneously store energy in a rechargeable element and supply the system with two independent regulated voltages. This allows product designers and engineers to extend battery lifetime and ultimately get rid of the primary energy storage element in a large range of wireless applications like industrial monitoring, geolocation, home automation, wearables...
The AEM10940 harvests the available input power from 1 µW to 50 mW. It integrates an ultra-low-power Boost converter to charge a storage element, such as a Li-Ion battery, a thin film battery or a super- or conventional capacitor. The Boost converter operates with input voltages in a range of 100 mV to 2.5 V. With its unique cold-start circuit, it can start operating with an empty storage element at an input voltage as low as 380 mV and an input power of just 11 µW.
The low voltage supply typically drives a microcontroller at 1.8 V. The high voltage supply typically drives a radio transceiver at a configurable voltage. Both are driven by highly efficient LDO (Low Drop-Out) regulators for low noise and high stability.
Configuration pins determine various operating modes by setting predefined conditions for the energy storage element (overcharge or overdischarge), and by selecting the voltage of the high voltage supply. However, special modes can be obtained at the expense of a few configuration resistors.
The chip integrates all the active elements for powering a typical wireless sensor. With only seven external components, integration is maximum, footprint and BOM are minimum, optimizing the time-to-market and costs of WSN designs in all markets.
Five identical capacitors and two inductors are required, available respectively in the small 0402 and 0603 SMD formats. The AEM10940 comes in two packaging options, with 20 or 24 pins, using space-saving quad-flat-no-leads packages (QFN).
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Make your batteries live forever with our disruptive semiconductors
Are you designing wireless sensor nodes for industrial applications? for home automation? in wearables? for smart agriculture? or e-Health?
Make your batteries live forever with our disruptive AEM10940 power management chip and save engineering, manufacturing and maintenance costs in your product design.
With the smallest footprint and associated BOM on the market, coupled with highest conversion efficiencies, the fastest supercapacitor charge and the lowest cold-start power, the AEM10940 helps you speed up time-to-market and reduce manufacturing costs of your ambient energy powered wireless sensor nodes, without any compromise.
Thanks to all that energy gathered from the environment, your maintenance cost of replacing batteries will drop dramatically or... disappear.
Relying on 10 years of university research and patented technologies in ultra-low power microelectronics, e-peas technology helps deploy the IoT of tomorrow without piling up mountains of used batteries.