WMSIC Electronic Components

WINSOK WSD30L40DN33

ModelWSD30L40DN33
PackageDFN-8(3x3)
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WINSOK WSD30L40DN33
Type
WINSOK
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WINSOK
Electronic Component
WSD30L40DN33
Electronic Component
1
Package
DFN-8(3x3)
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.133g
Electronic Component
1
Electronic Component
BM0225346640
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
32.9W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
30V

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

WSD30L40DN33 产品概述

一、概述与核心参数

WSD30L40DN33(品牌:WINSOK/微硕)是一颗面向高性能电源管理与功率开关应用的P沟道MOSFET,封装为DFN-8(3×3),适合空间受限的表面贴装电路。主要电气参数如下:漏源耐压 VDSS = 30V,导通电阻 RDS(on) = 24mΩ(在 VGS = -4.5V、ID = 10A 条件下),连续漏极电流 ID = 40A,耗散功率 Pd = 32.9W;栅极电荷 Qg = 30nC(在 4.5V),阈值电压 VGS(th) = 2.3V(250µA),输入/输出/反向传输电容分别为 Ciss = 1.38nF、Coss = 280pF、Crss = 217pF。工作温度范围宽,-55℃ 到 +150℃,适应工业级使用环境。

二、主要特性与优势

  • 低导通损耗:24mΩ 的低 RDS(on) 在中等电流下能显著降低导通功率损耗,提高系统效率。
  • 高电流承载能力:额定连续漏极电流达 40A,适合要求较大瞬时和持续电流的负载。
  • 快速开关性能:适中 Coss/Crss 与 30nC 的栅极电荷,使其在开关频率适中(DC-DC、负载切换)场景下表现良好。
  • 宽温度范围与小封装:-55~150℃ 的工作温度及 DFN-8(3×3) 封装,兼顾可靠性与高密度 PCB 布局需求。

三、典型应用场景

  • 电池供电设备的高侧负载开关与电源分配(如手机、平板、便携式仪器)。
  • 逆向电池保护与极性选择电路。
  • 电源管理模块(PMIC)中作为高侧功率开关或并联取代方案以降低损耗。
  • 非对称负载开关、充电管理和某些低压马达驱动的保护电路。

四、设计与使用建议

  • 栅极驱动:为达到规格 RDS(on),建议驱动 VGS 至约 -4.5V(相对于源极)。注意 P沟道器件开通时需将栅压拉低,关断时拉近源电位。
  • 驱动电流与 Qg:30nC 的栅极电荷在较高开关频率下要求驱动器具备足够瞬态电流能力,否则开关损耗增加。
  • 开关损耗与 Coss/Crss:Coss 与 Crss 将影响电荷转移和浪涌能量,需通过阻尼或软启动设计控制电压应力与电磁干扰。
  • 热管理:Pd = 32.9W 为器件在理想散热条件下的耗散能力,实际应用中应通过铜箔面积、散热层和过孔实现热量分散,必要时对额定电流做温度降额。
  • PCB 布局:DFN-8(3×3) 封装需优化散热焊盘与低阻电流回路,短而粗的轨迹减少寄生电感,电源和接地 decoupling 靠近器件放置。

五、可靠性与选型提示

  • 阈值电压 VGS(th) = 2.3V 表示器件在低栅压下可能仅处于亚阈区或线性区,设计时应确保足够的 VGS 幅度以满足导通需求。
  • 在并联使用以提升电流能力或降低导通损耗时,注意匹配 RDS(on) 和散热路径,以防热斑效应。
  • 在高频或高 dV/dt 环境下,应关注 Miller 效应(Crss)对栅极波形的影响,必要时增加栅极电阻或采用栅极驱动器以控制振铃与过冲。

总结:WSD30L40DN33 以其低导通阻抗、高电流承载和小尺寸 DFN 封装,适合用于移动电源管理与高侧开关等对能效、体积与可靠性有较高要求的应用场合。合理的栅极驱动、热设计与 PCB 布局可有效发挥其性能。

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