[原创] Intersil ISL9238降压－升压窄输出电压充电器解决方案

Intersil公司的ISL9238和ISL9238A是集成了SMBus接口和USB OTG的降压-升压窄输出电压充电器,输入电压从3.2V到23.4V,系统输出电压2.4V到18.304V,开关频率高达1MHz,具有系统监视器(PSYS)功能,可用于1-, 2-, 3-, 或4-颗锂电池充电,电子书,笔记本电脑,电源盒,以及任何USB-C接口用电池的手持设备.本文介绍了ISL9238和ISL9238A主要特性,框图,简化应用框图以及评估板ISL9238EVAL1Z主要特性,电路图,材料清单和PCB设计图.

The ISL9238 and ISL9238A are buck-boost Narrow OutputVoltage DC (NVDC) chargers. The ISL9238 and ISL9238Aprovide the NVDC charging function, system bus regulation

and protection features for tablet, ultrabook, notebook, powerbank and any USB-C interface platform. Intersil’s advancedR3™ Technology is used to provide high light-load efficiencyand fast transient response.

In Charging mode the ISL9238 and ISL9238A takes input powerfrom a wide range of DC power sources (conventional AC/DCcharger adapters, USB PD ports, travel adapters, etc.) and safelycharges battery packs with up to 4-series cell Li-ion batteries.

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