封装
QFN-20
注释;
20-LEAD (3MM*4MM)PLASTIC UTQFN:20引脚塑封UTQFN: EXPOSED PAD(PIN21) IS GND::裸露的焊垫（PIN21）是GND MUST BE SOLDERED TO PCB:必须焊接到印刷电路板
高效率锂电池充电器(5)
2020-12-24 20:22
高效率锂电池充电器(5).doc
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封装
QFN-20
注释;
20-LEAD (3MM*4MM)PLASTIC UTQFN:20引脚塑封UTQFN: EXPOSED PAD(PIN21) IS GND::裸露的焊垫（PIN21）是GND MUST BE SOLDERED TO PCB:必须焊接到印刷电路板
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