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e-peas S.A.

e-peas S.A.
Boulevard Baudouin 1er, 19 ,
Louvain-La-Neuve ,
1348
Belgium
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E-peas - Model AEM20940 - Thermal Energy Harvesting IC Solution

- Model AEM20940 - Thermal Energy Harvesting IC Solution

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E-peas’ thermal energy harvesting IC solution – AEM20940 – is an integrated energy management subsystem that extracts DC power from a thermoelectric generator (TEG) 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 disposable battery energy storage element in a large range of wireless applications like industrial monitoring, home automation, wearables, etc.

Specifications:

Specifications:
  • VIN : 50 mV to 3.5 V
  • COLD START : 60 mV @ 150 μW
  • PIN : 3 μW to 550 mW
  • POUT : 20 mA @ 1.2-1.8 V and 80 mA @ 1.8-2.5-3.3 V
  • SOURCE REGULATION : MPP Tracking
  • PACKAGE : QFN28 5 x 5 mm

OVERVIEW

Ultra-low-power start-up

  • Cold start from 60 mV input voltage and 150 µW input power with the optional external module (typical)
  • Cold start from 380 mV and 100 µW input power without the optional external module (typical)

Ultra-low-power Boost regulator

  • Configurable MPPT with 2-pin programming
  • Selectable Voc ratios of 50, 55 or 75%
  • Open circuit voltage sensing for MPPT every 21 s
  • Input voltage operation range from 50 mV to 3.5 V

Integrated LDO regulator at low voltage

  • 1.2/1.8 V, high efficiency
  • Up to 20 mA load current
  • Power gated by external control

Integrated LDO regulator at high voltage

  • Configurable : 1.8-2.5-3.3 V
  • Up to 80 mA load current with 300 mV drop-out
  • Power gated by external control

Flexible energy storage management

  • Programmable overcharge and overdischarge protection
  • For any type of rechargeable battery or (super)capacitor
  • Fast supercapacitor charging
  • Warns load when the battery is running low
  • Warns when output voltage regulators are available

Optional primary battery

  • Automatically switches to the primary the battery when secondary battery is exhausted

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