Let’s assume that you work with battery-powered IoT wireless devices that operate in an environment presenting thermal gradients generated by heaters, human bodies, furnaces, motors, etc.
You (or you customers) need to re-place the batteries of these devices, because they run out of energy. This generates operational costs and a negative impact on environment
However, in some environments, there is enough energy dissipated by thermoelectric energy sources that you could use to power your devices. Depending on the available temperature gradients, TEGs can generate from 20 µW to 10 mW per cm²
Best performing Ambient Energy Manager IC AEM20940 for thermal energy harvesting, enabling your devices to get supplied from a difference of temperature. Dedicated support to help you define the required thermoelectric generator and the storage element size
| Vin | Cold-start | Pin | Pout | MPPT | Package | Disp. |
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AEM20940 >>
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50 mV to 5 V
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60 mV @ 150 μW
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3 μW to 550 mW
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20 mA @ 1.2-1.8 V and 80 mA @ 1.8-2.5-3.3 V
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Yes
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QFN28 5 x 5 mm
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