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EM8500 - POWER MANAGEMENT CONTROLLER

General Description

The EM8500 is an integrated power management solution for low power applications.

It is specifically designed for efficient operation with a variety of DC harvesting sources including thermal electric generators (TEG) or photovoltaic (solar) sources in the μW to mW range.

Key Features

  • Flexible operation with different energy banks.
  • Primary cell battery.
  • Secondary cell battery.
  • Capacitors (gold-cap, super-cap).
  • Ultra-low power DCDC boost converter with very high efficiency.
  • Operating mode minimum voltage VDD_HRV ≥ 100 mV (typical).
  • Operating mode minimum power: PIN ≥ 1µW (typical).
  • Quiescent current: IQ ≤ 125 nA.
  • Cold-start minimum voltage: VIN ≥ 300 mV.
  • Cold-start minimum power: PIN ≥ 3 µW (typical).
  • Fast start-up on any.

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DATASHEET Ɩ EM8500 POWER MANAGEMENT CONTROLLER WITH ENERGY HARVESTING INTERFACE Description The EM8500 is an integrated power management solution for low power applications. It is specifically designed for efficient operation with a variety of DC harvesting sources including thermal electric generators (TEG) or photovoltaic (solar) sources in the μW to mW range. The device is designed to speed-up system start-up time when the main energy storage element (aka Long Term Storage – LTS) is completely discharged or insufficiently charged to supply the application, by using a secondary energy storage element (Short Term Storage - STS). When using a non-rechargeable primary battery the EM8500's onboard PMU offers a mechanism to extend battery life when assisted by a harvesting element.