WMSIC Electronic Components

KUU AO3400

ModelAO3400
PackageSOT-23
BrandKUU
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
KUU AO3400
Type
KUU
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
AO3400
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0264548723
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.4W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
30V

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

AO3400 N沟道MOSFET产品概述

一、产品基本信息

AO3400是KUU品牌推出的N沟道增强型MOSFET,采用紧凑的SOT-23封装,专为低电压、中小功率场景设计。该器件聚焦“小封装+低导通电阻+易驱动”核心特性,适配消费电子、工业控制等多领域的开关/功率控制需求,单颗即可满足基础功率切换应用。

二、核心电性能参数解析

AO3400的关键参数直接决定其应用边界,需结合实际场景重点关注:

1. 电压与电流能力

  • 漏源电压(Vdss):30V:可承受的最大漏-源极间电压,明确其适用于≤30V的低电压系统(如3.3V、5V、12V),避免高压击穿风险;
  • 连续漏极电流(Id):5.7A:常温下(25℃)允许的最大连续工作电流,脉冲电流可进一步提升(实际需参考 datasheet 脉冲曲线),满足中小功率负载驱动;
  • 耗散功率(Pd):1.4W:最大允许功耗,需注意SOT-23封装散热能力有限,连续大电流工作时需配合PCB散热设计。

2. 导通与驱动特性

  • 导通电阻(RDS(on)):26.5mΩ@10V:栅极驱动电压10V时的导通电阻,属于同封装MOSFET中的低阻水平——导通损耗低(如Id=5A时,损耗仅≈0.66W),效率优势明显;
  • 阈值电压(Vgs(th)):1.4V:开启器件的最小栅-源电压,说明其对低电压驱动友好(3.3V/5V系统可直接驱动,无需额外升压);
  • 栅极电荷量(Qg):[email protected]:开关过程中栅极所需电荷量,数值越小开关速度越快,适配100kHz以下的高频开关应用(如DC-DC同步整流)。

3. 电容特性

  • 输入电容(Ciss):900pF、反向传输电容(Crss):65pF:电容参数影响开关延迟与振铃,Ciss为输入总电容,Crss(米勒电容)需重点关注——若驱动电路匹配不当,易导致开关损耗增加或振铃干扰。

三、封装与可靠性特性

1. 封装优势

采用SOT-23封装(尺寸约2.9×2.2×1.1mm),体积仅为常规TO-92封装的1/10,适合便携设备(如智能手机、智能手环)、小型传感器节点等空间紧凑的场景;焊盘设计兼容常规回流焊工艺,生产效率高。

2. 宽温可靠性

工作温度范围为**-55℃+150℃**,覆盖工业级(-40℃+85℃)与汽车级(部分场景)的温度需求,可在极端环境下稳定工作(如户外传感器、车载辅助系统);同时具备基础ESD防护能力(符合JEDEC HBM标准),降低生产/使用中的静电损坏风险。

四、典型应用场景

AO3400的参数特性使其在以下场景中表现突出:

  1. 低电压电源管理:3.3V/5V系统的DC-DC转换器同步整流管、线性稳压器的负载开关;
  2. 便携设备控制:智能手机电池保护电路、平板充电开关、TWS耳机的电源切换;
  3. 小功率负载驱动:LED背光驱动(≤5A)、小型直流电机(如玩具电机)、音频电路的静音开关;
  4. 工业控制节点:传感器节点的电源通断、低电压继电器驱动、PLC输入/输出模块的开关控制。

五、选型与使用注意事项

  1. 驱动电压匹配:建议栅极驱动电压≥4.5V(可保证导通电阻≤35mΩ),若驱动电压不足(如3V),需注意导通损耗会显著增加;
  2. 散热设计:SOT-23封装散热能力有限,连续工作电流≥3A时,需在PCB上增加焊盘铜箔(建议≥10mm²)并连接到地平面,降低结温;
  3. ESD防护:MOSFET栅极易受静电损坏,操作时需佩戴防静电手环、使用防静电工具,避免直接接触引脚;
  4. 过流保护:虽连续电流达5.7A,但实际应用中需配合保险丝、限流电阻等保护电路,防止过载损坏;
  5. 电压降计算:导通电阻与电流的乘积为导通损耗(如Id=5A时,损耗≈0.66W),需确保PCB散热可承受该损耗。

AO3400凭借“小封装+低导通电阻+易驱动”的综合优势,成为低电压中小功率场景的高性价比选择,可满足多数消费电子与工业控制的基础开关需求。

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