WMSIC Electronic Components

Hangzhou Ruimeng MS31803TE

ModelMS31803TE
PackageETSSOP-16
BrandElectronic Component
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MS31803TE
Type
Relmon
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MS31803TE
Electronic Component
1
Package
ETSSOP-16
Type
Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.147g
Electronic Component
1
Channel Count
4
Electronic Component
BM0265612527
Resistor
420mΩ
Operating Temperature
40℃~+150℃
Operating Voltage
7.2V~50V
Current
2A
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

杭州瑞盟MS31803TE 4通道低侧开关产品概述

一、产品定位与核心价值

MS31803TE是杭州瑞盟推出的4通道低侧功率开关,专为中高压、多负载驱动场景设计,核心优势在于高集成度、宽电压适配与全防护能力,可替代传统继电器或分立MOS管方案——不仅简化电路设计、降低BOM成本,还能通过内置保护机制提升系统可靠性。其目标是为工业控制、汽车电子、智能家居等领域提供稳定可靠的多负载切换与驱动解决方案。

二、关键参数与性能指标

该器件的参数直接匹配中高压负载驱动需求,核心指标如下:

  • 通道配置:4独立通道,支持同时/分时控制多个负载,无需额外扩展;
  • 控制逻辑:低电平有效输入,兼容主流MCU的IO电平(如3.3V/5V),无需电平转换;
  • 电流能力:单通道最大连续输出电流2A,满足小功率电机、LED阵列、继电器等负载需求;
  • 工作电压:7.2V~50V宽电压范围,覆盖汽车12V/24V系统、工业24V/48V电源等场景;
  • 导通电阻:典型值420mΩ(每通道),低导通压降可减少功率损耗(如2A电流下压降仅0.84V),降低发热风险,提升效率。

三、全面的保护功能体系

MS31803TE内置多重保护机制,可避免过压、过流、短路等故障损坏器件及负载,无需额外设计保护电路:

3.1 欠压保护(UVP)

当输入电压低于7.2V时,器件自动关断所有通道输出,防止低电压下电路不稳定导致负载误动作;电压恢复至7.2V以上后,自动恢复输出。

3.2 过流保护(OCP)

单通道电流超过设定阈值时,器件进入限流模式(限制电流在安全范围);若持续过流(如负载堵转),则触发关断,避免器件过热烧毁;故障排除后,可通过重新上电或控制信号复位恢复。

3.3 短路保护(SCP)

输出端直接短路时,器件快速关断通道(响应时间<1μs),有效保护开关管及后端负载;短路故障解除后,自动恢复正常工作,无需手动干预。

3.4 过温保护(OTP)

当芯片结温超过150℃(典型值)时,触发过温关断;温度下降至120℃以下后,自动恢复输出,实现故障自恢复,避免器件因过热失效。

四、封装与可靠性设计

MS31803TE采用ETSSOP-16封装,具备以下优势:

  • 小体积高密度:封装尺寸紧凑(约5.0mm×4.4mm),适合PCB空间受限场景(如车载中控、小型PLC模块);
  • 散热性能佳:引脚间距与封装结构优化,可通过PCB铜箔辅助散热,满足2A连续电流下的散热需求;
  • 品牌可靠性:杭州瑞盟作为国内模拟芯片龙头厂商,该器件经过严格工业级测试(温度循环、湿热老化),符合RoHS标准,可长期稳定工作在-40℃~125℃宽温范围。

五、典型应用场景

MS31803TE的宽电压、多通道特性使其适用于多种场景:

  1. 汽车电子:车载LED尾灯/转向灯驱动、座椅调节小电机控制、继电器线圈驱动(车窗锁止、后备箱开启);
  2. 工业控制:PLC数字输出模块(控制电磁阀、传感器)、小型执行器(微型气泵、步进电机)驱动;
  3. 智能家居:智能插座多负载切换、家电(风扇、加湿器)多档位控制、安防设备电源管理;
  4. 通信设备:基站辅助电源切换、小型射频模块(WiFi/蓝牙)电源通断控制。

综上,MS31803TE凭借宽电压范围、多通道集成、全防护能力及小体积封装,成为中高压多负载驱动场景的高性价比选择,可有效简化系统设计并提升可靠性。

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