WMSIC Electronic Components

HL 3400Q

Model3400Q
PackageSOT-89-3L
BrandHL
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
HL 3400Q
Type
HL
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HL
Electronic Component
3400Q
Electronic Component
1
Package
SOT-89-3L
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.173g
Electronic Component
1
Electronic Component
BM0265670319
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
2.5W
Electronic Component
Electronic Component
Electronic Component
1000
Voltage(Vdss)
30V

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

3400Q N沟道MOSFET产品概述

一、产品基本信息

3400Q是富海微(HL) 推出的单颗N沟道增强型MOSFET,采用SOT-89-3L 小型表面贴装封装,核心定位于低电压(≤30V)中等功率场景的开关/驱动应用,具备体积小、效率高、驱动简单等特点。

二、关键电气参数解析

3400Q的核心参数围绕电压、电流、导通损耗、开关速度四大维度设计,适配主流低电压电路需求:

1. 电压与阈值特性

  • 最大漏源电压(Vdss):30V(连续工作电压上限,需预留10%-20%裕量避免过压);
  • 阈值电压(Vgs(th)):1.4V@250uA(低阈值设计,1.4V栅极电压即可导通,兼容MCU、小功率驱动芯片直接驱动)。

2. 电流与功率能力

  • 连续漏极电流(Id):7A(25℃环境下的最大连续工作电流,高温环境需按datasheet降额使用);
  • 最大耗散功率(Pd):2.5W(SOT-89封装的散热极限,需结合PCB铜箔/散热焊盘优化)。

3. 导通与开关特性

  • 导通电阻(RDS(on)):50mΩ@2.5V(2.5V栅压下即可实现低导通损耗,远低于同类小封装MOSFET,减少发热);
  • 栅极电荷量(Qg):[email protected](低Qg设计,开关切换速度快,适合高频应用场景)。

4. 温度适应性

  • 工作温度范围:-55℃~+150℃(宽温覆盖,可适应工业级高低温环境、户外设备等极端场景)。

三、封装与物理特性

3400Q采用SOT-89-3L 3引脚表面贴装封装,具备以下特点:

  • 引脚定义:典型布局为「漏极(D)- 栅极(G)- 源极(S)」(具体需参考datasheet确认);
  • 尺寸小巧:封装尺寸约2.9×2.5×1.1mm,适合空间紧凑的便携式设备、小型模块;
  • 环保合规:符合RoHS无铅标准,适配现代电子制造工艺。

四、典型应用场景

结合参数特性,3400Q主要适用于以下场景:

1. 低电压DC-DC转换

适配12V/24V系统的降压/升压电路(如车载充电器、移动电源),7A电流能力满足中等功率需求,低RDS(on)降低转换损耗(效率可提升2%-5%)。

2. 电池管理系统(BMS)

用于单节/多节锂电池的保护电路(30V电压覆盖3-6串锂电池),宽温范围适应电动车、储能设备的高低温环境,快速开关特性提升保护响应速度。

3. 小型电机驱动

驱动小功率直流电机、步进电机(如智能家居电机、玩具电机),7A连续电流满足启动/运行需求,低导通电阻减少电机发热。

4. 负载开关与电源路径控制

用于便携式设备(手机、平板)的电源路径切换,低RDS(on)减少压降(12V系统下7A电流仅产生0.35V压降),易驱动特性兼容MCU直接控制。

5. 高频开关应用

适配LED驱动(如背光调节)、射频前端小信号开关,低Qg设计减少开关损耗,提升高频效率。

五、应用注意事项

为确保3400Q稳定工作,需注意以下要点:

  1. 栅极驱动:建议驱动电压≥2.5V(达到最优RDS(on)),避免Vgs超过20V(栅极最大耐压,需参考datasheet);
  2. 散热设计:SOT-89封装需在PCB上增加散热焊盘(连接源极引脚)和大面积铜箔,100℃环境下Pd需降额至约1W;
  3. 静电防护:MOSFET栅极易受静电损坏,生产/焊接需佩戴静电手环、使用离子风机;
  4. 电压裕量:漏源电压需严格低于30V,避免过压击穿(可并联TVS管防护)。

六、产品优势总结

3400Q在小封装下实现了**「高电流密度+低损耗+宽温适配」** 的平衡,核心优势包括:

  • 低导通损耗:50mΩ@2.5V,减少功率损耗与发热;
  • 高集成度:SOT-89封装下实现7A连续电流,节省PCB空间;
  • 易驱动:低阈值1.4V,兼容多种驱动芯片;
  • 宽温可靠:-55℃~+150℃适应极端环境;
  • 快速开关:低Qg=4.8nC,适合高频应用。

综上,3400Q是一款针对低电压中等功率场景优化的N沟道MOSFET,可满足便携式设备、工业控制、汽车周边等领域的多样化需求。

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