Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WS4054 是一款适用于单节锂离子/锂聚合物电池的线性充电管理芯片,封装为 SOT-23-5。芯片面向 USB 及 5V 左右的电源供给场景设计,集恒流-恒压(CC/CV)充电、涓流预充、充电终止与自动再充电等功能于一体,支持可编程充电电流,最大可达 535mA(典型常用设计为 500mA)。器件无需外置功率 MOSFET、独立采样电阻或阻塞二极管,适合手机、PAD、MP3、蓝牙耳机等便携式产品的电源管理。
适用于基于 USB 供电的单节锂电池设备,包括智能手机副设备、平板前端模块、便携媒体播放器、蓝牙音频设备、可穿戴终端与小型充电盒等。
SOT-23-5 小封装,简化系统布局。典型外部器件需求极少:输入去耦电容、电池连接与一个用于设定充电电流的编程电阻(Rprog),以及指示 LED(可选)。无需外置功率 MOSFET、阻塞二极管或大功率采样电阻,利于节省 PCB 空间与 BOM 成本。
WS4054 以极简外设、低待机功耗和对 USB 场景友好的工作电压为主要优势,适合对 PCB 面积和成本敏感的便携式产品。对于需要单节锂电池可靠充电管理且对 0V 充电和电池温度检测无刚性要求的应用,WS4054 是一个高集成度且实用的选择。具体选型与参数设定请参考器件完整数据手册和参考设计。
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Use the form for single models, category sourcing, and multi-line BOM requirements.
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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