e-peas AEM30330 Vibration Energy Harvesting

e-peas AEM30330 Vibration Energy Harvesting is a highly versatile, regulated single-output, buck-boost ambient energy manager for vibration sources. This harvester is an integrated energy management circuit that extracts DC power from an ambient energy harvesting source to supply an application and store energy simultaneously. The AEM30330 energy harvesting extends the battery lifetime and eliminates the primary energy storage element. This charger features a 100mV to 4.5V Maximum Power Point Tracking system (MPPT) voltage operation range and cold start from 275mV input voltage at 3µW input power (typical). The AEM30330 battery charger consists of 3 capacitors (10µF, 22µF, and 40µF) and comes in a QFN 40-pin 5mm x 5mm package. Typical applications include asset tracking/monitoring, industrial, retail ESL/smart sensors, aftermarket automotive, and smart home/building.

Features

Ultra-low power start-up:
- Cold start from 275mV input voltage and 3µW input power (typical)
Very efficient energy extraction:
- Open-circuit voltage sensing for Maximum Power Point Tracking (MPPT)
- Selectable open-circuit voltage ratios from 35% to 80% or fixed impedance
- Programmable MPPT sensing period
- 100mV to 4.5V MPPT voltage operation ranges
Adaptive and smart energy management:
- DCDC switches automatically between boost, buck-boost, and buck operation, according to input and output voltages, to maximize energy transfer
- DCDC automatically handles multiple inputs and outputs:
  - Keeps the internal supply and the load voltages regulated while storing the excess of energy in the storage element
  - The storage element can be used as an input to keep the load and internal voltages regulated when no energy is available on the source
Load supply voltage:
- 1.2V to 3.3V selectable load voltage range
- Current drive capability:
  - 30mA in low power mode and 60mA in high power mode
Battery protection features:
- Selectable over-charge and over-discharge protection for any type of rechargeable battery or (super-) capacitor
- Fast super-capacitor charging
- Dual cell super-capacitor balancing circuit

Small footprint and small BOM:
- Only four external components are required
- One 10µH inductor
- Three capacitors:
  - One 10µF
  - One 22µF
  - One at least 40µF
-40°C to 125°C operating junction temperature range
-65°C to 150°C storage temperature range
QFN 40-pin 5mm x 5mm package

Applications

Asset tracking/monitoring
Industrial applications
Retail ESL/smart sensors

Aftermarket automotive
Smart home/building

e-peas AEM30330 Vibration Energy Harvesting

Features

Applications

Block Diagram

Schematic Diagram

Dimension Diagram

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