e-peas AEM00330 Ambient Energy Manager

e-peas AEM00330 Ambient Energy Manager is a highly versatile buck-boost ambient energy manager with source voltage level configuration. This energy manager is an integrated energy management circuit that extracts DC power from a harvesting source to supply an application and store energy simultaneously. The AEM00330 extends the battery lifetime and ultimately eliminates the primary energy storage element in a large range of applications. This energy manager features a 140mV to 4.5V selectable operates input voltage range and cold start from 275mV input voltage at 3µW input power (typical). The AEM00330 ambient energy manager operates at -40°C to 125°C junction temperature range and comes in a QFN 40-pin 5mm x 5m package. Typical applications include door access systems, smart wearable sensors, smart switches in homes/buildings, and Point-Of-Sales (POS).

Features

Ultra-low power start-up:
- Cold start from 275mV input voltage and 3µW input power (typical)
Constant input voltage regulation:
- Optimized for intermittent and pulse power
- 140mV to 4.5V selectable operating input voltage range
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 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:
- Selectable load voltage from 1.2V to 3.3V
- Current drive capability:
  - 30 mA 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

Smallest footprint and smallest 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
QFN28 4mm x 4mm package

Applications

Door access systems
Smart wearable sensors

Smart switches home/building
Point-Of-Sales (POS)

e-peas AEM00330 Ambient Energy Manager

Features

Applications

Block Diagram

Schematic Diagram

Dimension Diagram

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