ST STWLC04 Qi协议1W无线功率接收方案
ST公司的STWLC04是基于Qi协议的1W无线功率接收器,具有数字控制和精密的模拟控制回路,保证了稳定工作.和STWBC-WA发送器一起,组成完整的无线发送方案.I2C接口可使许多参数定制化,并把配置存储在嵌入的NVM中,主要用在可穿戴设备,智能手表,医疗和保健仪器以及智能眼镜.本文介绍了STWLC04主要特性,框图和应用电路,以及基于STWBC-WA的可穿戴应用的无线充电发送器评估板STEVAL-ISB038V1T主要指标,框图,电路图,材料清单和PCB设计图.
The STWLC04 is an integrated wireless power receiver suitable for wearable applications. The STWLC04 is focused on 1-watt power transfer based on Qi protocol with digital control and precise analog control loops ensuring stable operation. Together with the STWBC-WA transmitter, the STWLC04 enables a complete wireless power transmission. I2C interface allows many parameters to be customized in the device and this configuration can be stored in the embedded NVM.
The STWLC04 can deliver the output power in two modes: as a power supply with configured output voltage or as a simple CC/CV battery charger with configurable charging current, charging voltage and termination current. The STWLC04 can detect the external (wired) power supply connection and drive an external power switch.
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