Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
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LP4069TQVF是微源半导体(LOWPOWER)推出的一款单节锂离子/锂聚合物电池充电管理芯片,封装为DFN-8-EP (2×2)。芯片针对便携式和低功耗系统的电池充电需求设计,集成必要的充电控制与温度检测接口,可在有限空间内实现安全、可控的充电方案。
LP4069TQVF采用典型的恒流-恒压(CC/CV)充电策略,先以设定的最大电流对电池进行恒流充电,当电池电压逼近4.2 V时切换到恒压充电并逐步降低电流直至终止。芯片支持外接温度检测元件,可在电池温度异常时限制或停止充电,提升安全性。低静态电流设计使其在系统待机或无电池时对电源消耗极小,适合电池供电要求严苛的便携设备。
DFN-8-EP 带底部散热垫,建议在PCB上配备过孔与完整的焊盘接地、为热垫设计大铜箔并与地平面相连以提升散热性能。布板时把电池连接线、感测电阻及旁路电容尽量靠近芯片引脚,减少走线阻抗和噪声耦合。输入端使用适当的去耦电容,电池侧加稳定的旁路电容以保证充电稳定性。
LP4069TQVF以宽输入电压(4.5–28 V)、较高的充电电流能力(800 mA)、低静态电流(160 μA)和单节4.2 V精确恒压点为特点,适用于对体积、功耗和安全性都有要求的单节锂电应用。DFN-8-EP小封装有利于紧凑设计,同时底部散热垫便于热管理,是为中小功率便携式产品提供简洁可靠充电管理的合适选择。
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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.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
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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