Datasheet AEM00300 (E-peas)

DATASHEET AEM00300 Highly Versatile Buck-Boost Ambient Energy Manager Battery Charger with Source Voltage Level Configuration Feature Description
Ultra-low power start-up The AEM00300 is an integrated energy management circuit - Cold start from 275 mV input voltage and 3 µW input power that extracts DC power from an ambient energy harvesting (typical) source to store energy in a storage element. The AEM00300 Constant input voltage regulation al ows to extend battery lifetime and ultimately eliminates the primary energy storage element in a large range of - Optimized for intermittent and pulse power applications. - Selectable operating input voltage from 140 mV to 4.5 V Thanks to its selectable operating input voltage, it is possible to Adaptive and smart energy management set a voltage at which the AEM00300 operates. This voltage is - Switches automatical y between boost, buck-boost and between 140 mV and 4.5 V. buck operation, to maximize energy transfer from its input to the output With its unique cold start circuit, the AEM00300 can start Battery protection features harvesting with an input voltage as low as 275 mV and from an input power of 3 μW. The preset protection levels determine - Selectable over-charge and over-discharge protection for the storage element voltages protection thresholds to avoid any type of rechargeable battery or (super-)capacitor over-charging and over-discharging the storage element and - Fast super-capacitor charging thus avoiding damaging it. Those are set through configuration - Dual cel super-capacitor balancing circuit pins. Moreover, special modes can be obtained at the expense Smal est footprint, smal est BOM of a few configuration resistors. - Only three external components are required - One 10 µH inductor
Applications
- Two capacitors: one 10 µF, one 15 µF • Door access systems • Smart wearable sensors • Smart switches home/building • Point-of-sales (POS) CSRC LDCDC 15uF 10uH
Device Information
N T Part Number Package Body size [mm] RC S LI U F LO BU 10AEM00300C0000 QFN 28-pin 4x4mm SOURCE SRC VINT VINT AEM00300 CINT 10uF
Evaluation Board
VSTO STO GND Part Number Storage Element 2AAEM00300C001 DS_AEM00300_Rev1.0 Copyright © 2022 e-peas SA 1 Document Outline Table of Contents List of Tables 1. Introduction 2. Absolute Maximum Ratings 3. Thermal Resistance 4. Typical Electrical Characteristics at 25 °C 5. Recommended Operation Conditions 6. Functional Block Diagram 7. Theory of Operation 7.1. DCDC Converter 7.2. Reset and Wake Up States 7.3. Supply State 7.4. Source Voltage Regulation 7.5. Balancing for Dual-Cell Supercapacitor 8. System Configuration 8.1. High Power / Low Power Mode 8.2. Storage Element Configuration 8.3. Custom Mode Configuration 8.4. Disable Storage Element Charging 8.5. Source Level Configuration 8.6. External Components 8.6.1. Storage element information 8.6.2. External inductor information 8.6.3. External capacitors information CSRC CINT 9. Typical Application Circuits 9.1. Example Circuit 1 9.2. Example Circuit 2 9.3. Circuit Behaviour 9.4. DCDC Conversion Efficiency From SRC to STO in Low Power Mode 9.4. DCDC Conversion Efficiency From SRC to STO in Low Power Mode 9.5. DCDC Conversion Efficiency From SRC to STO in High Power Mode 10. Schematic 11. Layout 12. Package Information 12.1. Plastic Quad Flatpack No-Lead (QFN 28-pin 4x4mm) 12.2. Board Layout 13. Revision History