WMSIC Electronic Components

WINSOK WSP4406

ModelWSP4406
PackageSOP-8
BrandWINSOK
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WINSOK WSP4406
Type
WINSOK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WINSOK
Electronic Component
WSP4406
Electronic Component
1
Package
SOP-8
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.209g
Electronic Component
1
Electronic Component
BM0264549090
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
3.1W
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.

WSP4406 产品概述

一、产品简介

WSP4406 是微硕(WINSOK)推出的一款小封装高性能 N 沟道场效应管,单只器件适合中低压、高电流的开关与线性应用。主要参数:漏源耐压 Vdss = 30V,连续漏极电流 Id = 12A,典型导通电阻 RDS(on) = 18mΩ(Vgs = 4.5V),耗散功率 Pd = 3.1W,阈值电压 Vgs(th) = 2.5V,栅极总电荷 Qg = 6.3nC(@4.5V);输入电容 Ciss = 770pF,输出电容 Coss = 130pF,反向传输电容 Crss = 76pF。工作温度范围 -55℃ ~ +150℃,封装为 SOP-8。

二、主要特点

  • 低导通电阻:RDS(on) 仅 18mΩ(4.5V 驱动),适合要求较低导通损耗的开关场合。
  • 中等栅极电荷:Qg = 6.3nC,驱动能量适中,驱动器负担不大。
  • 体积小、封装成熟:SOP-8 便于表面贴装与大批量生产。
  • 宽工温范围:-55℃ 到 +150℃,适应工业与消费电子环境。

三、典型应用

  • DC-DC 降压转换器的低端或高端开关(视拓扑而定)
  • 电源管理与负载开关、逆变器辅助开关
  • 电池保护电路与便携设备电源路径控制
  • 小型直流电机驱动、继电器替代、保护断开元件

四、驱动与开关性能说明

  • 标称 RDS(on) 在 Vgs = 4.5V 下给出,若使用更高栅极电压可进一步降低导通电阻(具体极限电压请参照完整 datasheet)。
  • Qg 反映开关所需的驱动能量,栅极驱动功率可按 Pgate ≈ Qg × Vdrive × f 估算;例如在 100kHz、Vdrive=4.5V 条件下,Pgate ≈ 6.3nC×4.5V×100kHz ≈ 2.8mW,驱动损耗较小。
  • Ciss/Crss/Coss 值有助于评估开关速度、回灌与钳位影响;在高 dV/dt 场合注意阻尼与栅极回路布线以避免振铃。

五、热管理与封装说明

虽然器件标称 Id 高达 12A,但 SOP-8 封装的热阻限制了实际连续大电流下的耗散能力(Pd = 3.1W 需在良好散热条件下使用)。建议:

  • 使用较宽的铜箔、厚铜(2oz)、并在底层布设热铜平面与过孔进行散热。
  • 短布线、减少串联电阻与接触电阻,避免局部过热。
  • 在高频开关或高占空比工作下进行热仿真与实测验证。

六、使用建议与注意事项

  • 根据实际驱动电压选择合适的门极驱动器,确保在所需工作点下达到标称 RDS(on)。
  • 布局时将栅极驱动回路尽量短而粗,以降低电感和振铃。
  • 高 dV/dt 与高 di/dt 场合注意器件的电压尖峰与 EMI 控制。
  • 关键应用请参考完整 datasheet 与器件 SOA 数据,并进行样机验证。

总结:WSP4406 在 30V 档位中以低 RDS(on)、适中 Qg、SOP-8 小封装的组合,适合多种中功率开关与电源管理场景。合理的驱动与散热设计能发挥其较好的导通与开关性能。

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