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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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LP28053ASPF 是 LOWPOWER(微源半导体)面向单节锂离子/锂聚合物电池的高集成充电管理芯片。芯片工作电压范围宽(4.4V~6.5V),最大充电电流可达 1A,恒压充电饱和电压为 4.2V,适用于便携设备及对待机功耗要求严格的低功耗应用场景。器件采用 ESOP-8 封装,工作温度范围 -40℃~+85℃,并支持电池温度检测功能,静态电流仅 1μA,非常适合电池供电的物联网终端、便携式测量仪和低功耗消费电子产品。
其他典型特性(器件级设计常见,便于系统集成):
LP28053ASPF 遵循标准的 CC/CV 充电流程:当电池电压低于设定点时,芯片以恒流模式对电池进行快速充电(恒流值可通过外接电阻或系统配置设定,最高 1A);当电池电压接近 4.2V 后切换到恒压模式,维持 4.2V 直到充电电流下降到终止条件(进入涓流或停止充电)。芯片支持电池温度检测,若检测到温度异常将限制或终止充电以保护电池安全。宽输入电压范围使其兼容常见的 5V 电源和部分高于 5V 的电源输入。
ESOP-8 封装兼顾小型化与散热性能,适合空间受限的便携设备。芯片的工业级工作温度(-40℃~+85℃)满足大多数户外与工业环境的可靠性需求。实际使用中应参考器件完整数据手册进行应力和寿命评估,特别是在高温或长时间高电流充放电工况下。
选择 LP28053ASPF 时,请确认系统电源电压与充电电流要求在器件额定范围内;如系统需要更高电流或多节电池支持,应考虑相应的型号或并联/级联方案。建议参考 LOWPOWER(微源半导体)提供的典型应用电路与 PCB 布局范例,以保证性能与安全性。
如果需要,我可以根据您的具体应用(输入电源类型、电池容量、目标充电时间、PCB面积限制等)提供一份参考原理图和外部元件清单。
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Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
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The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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