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HG809SM3/TR是华冠半导体(HGSEMI)推出的低功耗微功耗电压检测器,核心用于电子系统的上电复位控制与电压异常监测,凭借精准阈值、极低静态电流、小封装及宽温适应性,成为便携设备、嵌入式系统及工业控制领域的优选器件。
该器件聚焦“低功耗+精准监测”两大核心需求,针对电池供电设备的续航痛点(如智能穿戴、蓝牙产品),以及嵌入式系统的稳定性需求(如MCU上电复位),实现“低成本、小体积、高性能”的平衡:
工作电压覆盖1V~6V,兼容从纽扣电池(1.5V)到5V电源的多种系统,适配3.3V、5V等主流嵌入式电源,以及1.8V低电压IoT设备的欠压监测。
阈值电压为2.93V(典型值),针对3V级系统设计:当系统电源电压降至2.93V以下时,复位输出激活;阈值精度满足工业级要求,温区内漂移极小,确保电压监测可靠性。
复位超时为200ms(典型值),避免电源上电瞬态波动(如电压尖峰、跌落)导致的误复位,同时确保MCU晶振、外设稳定初始化后释放复位信号,防止程序跑飞。
静态电流(Iq)仅5.5uA(典型值),是同类产品中的低功耗水平:若系统采用100mAh纽扣电池供电,仅该器件的静态功耗占比不足0.005%,适合长期待机的便携设备。
采用SOT-23-3封装(尺寸约1.6mm×1.0mm×0.8mm),超小体积适合高密度PCB设计(如智能手环、蓝牙耳机的紧凑主板);3引脚设计(通常为VDD、GND、RESET)简化电路布局,兼容回流焊、波峰焊工艺,易于自动化生产。
工作温度范围为**-40℃~+85℃**,覆盖工业级应用场景:
HG809SM3/TR以“低功耗、精准监测、小封装、宽温适应”为核心优势,是替代进口同类器件(如TPL5010、SGM809)的高性价比国产方案,广泛应用于对功耗敏感、稳定性要求高的电子系统中。
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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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