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Maxim MAX20361小型单/多电池太阳能收获器解决方案

Maxim公司的MAX20361是全集成的小型单/多电池太阳能源收获器解决方案,包括超低静态电流(360nA)升压转换器,它能从输入电压低至225mV(典型)起动.为了最大化从源中提取功率,MAX20361采用专有最大功率点跟踪(MPPT)技术,能从15μW到超过300mW可用输入功率进行有效的收获.器件还具有集成的最佳用于锂电池的充电和保护电路,当然也可用于超级电容,薄膜电池或传统电容进行充电.充电器具有可编程的充电截止电压,通过I2C接口的可编程阈值以及温度关断.VSYS = 3.8V, ISRC = 30mA时的效率为86%,采用小型2016 4.7μH电感.器件采用12凸0.4mm间距1.63mm x 1.23mm WLP封装.主要用在可穿戴健身设备,医疗设备,工业IoT传感器,资产跟踪设备以及无线传感器网络.本文介绍了MAX20361主要优势和特性,简化框图,太阳能应用电路框图以及评估板MAX20361 EVK主要特性,电路图,材料清单和PCB设计图.

 

 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

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