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MSKSEMI LMV331W5-7(MS) LMV331W5
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MSKSEMI LMV331W5-7(MS)
- Type
- MSKSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MSKSEMI
- Electronic Component
- LMV331W5-7(MS)
- Electronic Component
- 1
- Package
- SOT23-5
- Electronic Component
- Comparator
- Electronic Component
- 0.04g
- Power Supply
- 2.1V~5.5V
- Electronic Component
- 1
- Electronic Component
- BM0224729538
- Operating Temperature
- 40℃~+85℃
- Comparator
- Electronic Component
- Output
- CMOS
- Output Type
- Electronic Component
- Static Current(Iq)
- 50uA
- (tpd)
- 460ns
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LMV331W5-7(MS) 产品概述
LMV331W5-7(MS) 是 MSKSEMI（美森科）推出的一款低功耗、高精度单路电压比较器，封装为 SOT23-5。器件针对便携式与工业控制场景做了电源与输入偏置优化，适合对电压门限检测与逻辑接口要求较高的应用。
一、主要参数亮点
- 共模抑制比 (CMRR)：70 dB，保证差分输入误差在共模变化时仍能维持精确比较。
- 输入失调电压 (Vos)：800 μV，失调电流 (Ios)：1 pA，输入偏置电流 (Ib)：2 pA，适合高精度低电流测量场合。
- 失调温漂 (Vos TC)：0.8 μV/℃，长期温度稳定性优良。
- 静态电流 (Iq)：50 μA，适合电池供电与低功耗系统。
- 传播延迟 (tpd)：约 460 ns，兼顾速度与功耗。
- 电源范围：单电源 2.1 V ~ 5.5 V；双电源 ±0.9 V ~ ±2.75 V；最大电源差不得超过 7 V。
- 输出：开漏 (Open-drain)，兼容 CMOS 电平，需外接上拉电阻。
- 工作温度：-40 ℃ ~ +85 ℃，适用于工业级温区。
- 封装：SOT23-5，适合空间受限设计。
二、典型应用场景
- 便携与电池供电设备的电压门限检测与电源监控。
- 低电流传感器信号放大与阈值判定（电流源或高阻抗传感器接口）。
- 数字电路互联的电平检测（开漏输出利于线-与逻辑与多点连接）。
- 需要宽供电选择（单电源或双极性供电）的模拟比较场合。
三、设计与使用建议
- 输出为开漏结构，必须外接合适上拉电阻以实现所需逻辑电平；推荐根据速度与功耗权衡选择 4.7 kΩ ～ 100 kΩ，一般 10 kΩ 为常用值。
- 严格保证器件 Vdd 与 Vss 之间电压不超过 7 V。若采用单电源模式，工作电压建议维持在 2.1 V ～ 5.5 V 范围内；双电源模式须满足 ±0.9 V ～ ±2.75 V。
- 对于敏感的高阻抗输入，应加强 PCB 布线与旁路电容（靠近电源引脚放置 0.1 μF 陶瓷旁路），并考虑加入限流或双向 TVS/二极管做 ESD/浪涌保护。
- 若输入信号存在抖动或噪声，建议在比较器前端加入适量滞回（正反馈）以避免振荡。
- 传播延迟约 460 ns，适用于中低速开关应用；对于要求亚微秒级响应的场合需评估整体系统延迟。
四、封装与选型注意
SOT23-5 小型封装利于空间受限电路板部署，焊接与散热特性符合常规手工与自动贴装工艺。选型时请确认是否需要单路比较器满足系统拓扑，及输出开漏特性是否满足后端逻辑需求（若需推挽输出请另行选择）。
总结：LMV331W5-7(MS) 以其低失调、低偏置电流、低静态功耗和灵活的供电方式，适用于便携、传感与工业控制等场景的高精度门限检测。合理布线、上拉电阻与保护措施可确保器件在实际电路中稳定可靠运行。
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