MAX20361
MAX20361 is Single-/Multi-Cell Solar Harvester manufactured by Maxim Integrated.
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Small, Single-/Multi-Cell Solar Harvester with
MPPT and Harvest Counter
General Description
The MAX20361 is a fully integrated solution for harvesting energy from single-/multi-cell solar sources. The device includes an ultra-low quiescent current (360n A) boost converter that is capable of starting from input voltages as low as 225m V (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 300m W 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 Io T Sensors
- Asset Tracking Devices
- Wireless Sensor Networks
Benefits and Features
- Single-/Multi-Cell Solar Energy Harvester
- 225m V to 2.5V (typ) Input-Voltage Range
- Efficient Harvesting from 15μW to Over 300m W of Available Input Power
- 86% Efficiency at VSYS = 3.8V, ISRC = 30m A
- 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
Ordering Information at end of data sheet.
19-100866; Rev 1; 9/20
Simplified Block Diagram
Small, Single-/Multi-Cell Solar Harvester with MPPT and Harvest...