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
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
灵星芯微(LX)推出的TL494CDR(LX)是一款基于经典TL494架构优化的中小功率DC-DC电源控制IC,采用SOP16贴片封装,以宽电压输入、可调开关频率及工业级温宽为核心特性,广泛适配车载、工业、消费电子等多场景的开关电源设计需求。
TL494CDR(LX)属于双端开关电源控制器件,内置振荡器、双误差放大器、PWM比较器、死区时间控制电路及软启动功能(兼容传统TL494的通用特性),无需复杂外围即可实现推挽拓扑的高效电源设计。作为灵星芯微针对中小功率市场推出的高性价比产品,其引脚定义与传统TL494完全兼容,便于现有设计的替换升级。
覆盖车载12V/24V系统(怠速时输入约10V,启动峰值达28V)、工业24V辅助电源(波动范围18V~36V)及部分消费电子12V适配器,无需额外降压/升压电路即可直接驱动,简化系统架构。
满足户外设备(安防监控电源)、车载电子(发动机舱高温)及工业控制柜(内部散热环境)的严苛要求,避免极端温度下性能衰减。
区别于单端拓扑(如反激),推挽拓扑通过双开关管交替导通,使变压器初级双向励磁,具有电流应力小、效率高(典型85%以上)的优势,适合10W~200W中小功率设计,规避单端拓扑的磁偏磁问题。
TL494CDR(LX)采用SOP16贴片封装,引脚间距1.27mm,兼容常规贴片焊接工艺,PCB布局灵活(适合高密度设计)。灵星芯微内置±2kV人体模式ESD防护及过流保护逻辑(外围电阻可设置),提升抗干扰能力与实际可靠性。
总结:TL494CDR(LX)以高性价比、宽适配性及工业级可靠性,成为中小功率开关电源设计的主流选择,尤其适合对温宽、噪声及体积有明确要求的场景。
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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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