Datasheet AEM30330 (E-peas)

DATASHEET AEM30330 Highly Versatile, Regulated Single-Output, Buck-Boost Ambient Energy Manager For AC/DC Sources with Optional Primary Battery Features Description
Ultra-low power start-up The AEM30330 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 simultaneously supply an application and store Very efficient energy extraction energy in a storage element. The AEM30330 al ows to extend battery lifetime and ultimately eliminates the primary energy - Open-circuit voltage sensing for Maximum Power Point storage element in a large range of applications. Tracking (MPPT) - Selectable open-circuit voltage ratios from 35% to 80% or Thanks to its Maximum Power Point Tracking system, the fixed impedance AEM30330 extracts the maximum energy available from the source. It integrates an ultra-low power DCDC converter which - Programmable MPPT sensing period operates with input voltages ranging from 100 mV to 4.5 V. - MPPT voltage operation range from 100 mV to 4.5 V Adaptive and smart energy management with optional Two different storage elements can be connected: one for storing energy and another one for coupling the load output primary battery voltage. At start-up, user can choose to charge the storage - Switches automatical y between boost, buck-boost and element first or the load capacitor first. buck operation, to maximize energy transfer from its input to the output With its unique cold start circuit, the AEM30330 can start - Automatical y selects between the source, storage element harvesting with an input voltage as low as 275 mV and from an and an optional primary battery input power of 3 μW. The preset protection levels determine the storage element voltages protection thresholds to avoid - Automatical y select the output between the internal over-charging and over-discharging the storage element and supply, the load and the storage element thus avoiding damaging it. Those are set through configuration Load supply voltage pins. Moreover, special modes can be obtained at the expense - Current drive capability: 30 mA in low power mode, 60 mA of a few configuration resistors. in high power mode The load voltage can be selected to cover most application - Selectable load voltage from 1.2 V to 3.3 V needs, with a maximum available load current of 60 mA. Battery protection features The chip integrates al active elements for powering a typical - Selectable over-charge and over-discharge protection for wireless sensor. Only three capacitors and one inductor are any type of rechargeable battery or (super-)capacitor required. - Fast super-capacitor charging - Dual cel super-capacitor balancing circuit
Applications
Smal est footprint, smal est BOM - Only four external components are required • Asset Tracking/Monitoring • Industrial applications - One 10 µH inductor • Retail ESL/ Smart sensors • Aftermarket automotive - Three capacitors: one 10 µF, one 15 µF, one at least 40 µF • Smart home/building LDCDC CSRC 15uF 10uH
Device Information
Part Number Package Body size [mm] C T LIN U FSR 10AEM30330J0000 QFN 40-pin 5x5mm U LO VINT B SRC VINT SOURCE CINT AEM30330 10uF
Evaluation Board
VSTO STO LOAD LOAD Part Number CLOAD GND Li-Ion 47uF 2AAEM30330J0010 Battery DS_AEM30330_Rev1.0 Copyright © 2021 e-peas SA 1 Document Outline 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, Wake Up and Start States 7.2.1. Storage Element Priority Supercapacitor as a Storage Element Battery as a Storage Element 7.2.2. Load Priority 7.3. Supply State 7.4. Shutdown State 7.5. Sleep State 7.6. Primary Battery State 7.7. Maximum Power Point Tracking 7.8. Balancing for Dual-Cell Supercapacitor 8. System Configuration 8.1. High Power / Low Power Mode 8.2. Storage Element Configuration 8.3. Load Configuration 8.4. Custom Mode Configuration 8.5. Disable Storage Element Charging 8.6. MPPT Configuration 8.7. ZMPP Configuration 8.8. Source to Storage Element Feed- Through 8.9. Primary Battery Configuration 8.10. External Components 8.10.1. Storage element information 8.10.2. External inductor information 8.10.3. External capacitors information CSRC CINT CLOAD 9. Typical Application Circuits 9.1. Example Circuit 1 9.2. Example Circuit 2 9.3. Circuit Behaviour 10. Performance Data 10.1. DCDC Conversion Efficiency From SRC to STO in Low Power Mode 10.2. DCDC Conversion Efficiency From SRC to STO in High Power Mode 10.3. DCDC Conversion Efficiency From STO to LOAD in Low Power Mode 10.4. DCDC Conversion Efficiency From STO to LOAD in High Power Mode 10.5. Quiescent Current 11. Schematic 12. Layout 13. Package Information 13.1. Plastic Quad Flatpack No-Lead (QFN 40-pin 5x5mm) 13.2. Board Layout 14. Revision History