MAX20361
Small, Single-/Multi-Cell Solar Harvester with MPPT and Harvest Counter
World's Smallest Solar Harvester Increases Runtime and Reduces Size of Solar-Powered Devices
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Overview
Features and Benefits
- Single-/Multi-Cell Solar Energy Harvester
- 225mV to 2.5V (typ) Input-Voltage Range
- Efficient Harvesting from 15μW to Over 300mW of Available Input Power
- 86% Efficiency at VSYS = 3.8V, ISRC = 30mA
- Small Solution Size
- Utilizes Small 2016 4.7μH Inductor
- Maximum Power Point Tracking (MPPT) Technique Using Fractional VOC Method
- Programmable Fractional VOC Regulation Point through I2C Interface
- Battery/Supercapacitor Charger
- Programmable Battery Termination Voltage through I2C Interface
- Programmable Power Good Wake-Up Signal Output Threshold through I2C Interface
Product Details
The MAX20361 is a fully integrated solution for harvesting energy from single-/multi-cell solar sources. The device includes an ultra-low quiescent current (360nA) boost converter that is capable of starting from input voltages as low as 225mV (typ). In order to maximize the power extracted from the source, the MAX20361 implements a proprietary maximum power point tracking (MPPT) technique that allows efficient harvesting from 15μW to over 300mW of available input power.
The MAX20361 also features an integrated charging and protection circuit that is optimized for Li-ion batteries, but can also be used to charge supercapacitors, thin-film batteries, or traditional capacitors. The charger features a programmable charging cut-off voltage with thresholds programmable through I2C interface as well as temperature shutoff. The MAX20361 is available in a 12-bump, 0.4mm pitch, 1.63mm x 1.23mm wafer-level package (WLP).Applications
- Wearable Fitness
- Medical Devices
- Industrial IoT Sensors
- Asset Tracking Devices
- Wireless Sensor Networks
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX20361AEWC+ | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| MAX20361AEWC+T | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| MAX20361BEWC+ | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| MAX20361BEWC+T | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| MAX20361CEWC+ | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| MAX20361CEWC+T | Material Declaration | Reliability Data | 12-WLCSP-N/A | |
| Wafer Fabrication Data | MAX20361 Reliability Data |
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.