WMSIC Electronic Components

WILLSEMI WPM3022-3/TR WPM3022

ModelWPM3022-3/TR
PackageSOT-23
BrandWILLSEMI
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WPM3022-3 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
WPM3022-3/TR
Electronic Component
1
Package
SOT-23
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0227715797
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
960mW
Gate Voltage(Vgs)
±20V
Electronic Component
Electronic Component
Electronic Component
3000

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

WPM3022-3/TR 产品概述

WPM3022-3/TR 是 WILLSEMI(韦尔)推出的一款 P 沟道场效应晶体管,SOT-23 小封装、宽工作温度范围(-55℃ ~ +150℃),面向便携设备和功率管理电路中的高侧开关与反向保护等应用。器件在 VGS=10V 条件下具有较低的导通电阻,兼顾低导通损耗与小体积封装,适用于对成本与板面积敏感的应用场景。

一、主要特性

  • 类型:P 沟道 MOSFET(高侧使用方便)
  • 漏源电压 Vdss:30V
  • 连续漏极电流 Id:3.1A(器件额定值,需考虑热限)
  • 导通电阻 RDS(on):68mΩ @ VGS = 10V(典型测量条件)
  • 阈值电压 VGS(th):约 2.5V @ 250µA(非典型“逻辑电平”驱动)
  • 总栅电荷 Qg:9.7nC @ 10V(驱动功率与开关速度参考)
  • 输入/输出/反向电容:Ciss = 599pF、Coss = 69pF、Crss = 41pF
  • 功耗 Pd:960mW(SOT-23 封装热极限,需热设计)
  • 工作温度:-55℃ ~ +150℃
  • 封装:SOT-23,适合表面贴装与小尺寸应用

二、关键参数解读

  • RDS(on) = 68mΩ @ 10V:在 VGS 充分驱动(通常为 -10V)时导通阻抗较低,可降低导通损耗。但若驱动电压只有 5V 或更低,实际 RDS(on) 会显著上升。
  • VGS(th) = 2.5V:在 250µA 漏流下的阈值,说明器件不是严格的低电压逻辑级 MOSFET;若系统仅能提供小幅度栅极摆幅,需要验证在该 VGS 下的导通能力。
  • Qg 与 Ciss/Coss/Crss:总栅电荷和输入电容较大,意味着在频繁开关时需更强的栅极驱动能力(或较大的栅极驱动电流),Crss(米勒电容)会影响上升/下降沿并带来米勒效应,需要在布局与驱动设计时考虑。
  • Pd 与热管理:封装最大耗散功率约 960mW,结合 RDS(on) 下的导通损耗(例如 3A 时 I^2·R ≈ 0.612W),在高电流连续工作时应注意芯片温升并采取散热与 PCB 热铜箔设计。

三、封装与引脚

SOT-23 三引脚封装便于小尺寸应用,但热阻相对较高。建议在 PCB 设计中:

  • 增大与 MOSFET 相连的铜箔面积,通过散热层或散热孔改善热传导;
  • 在与源/漏相关的铜箔处增加过孔与热焊盘以降低温升;
  • 依据功能布置旁路电容与米勒抑制网络,减小寄生电感影响。

四、典型应用场景

  • 电池供电系统的高侧负载开关与电源路径管理(P 沟道便于高侧实现)
  • 便携式设备的电源反接保护与负载切换
  • 低功率 DC-DC 转换器中的同步开关(需评估开关损耗)
  • 通用电源开关、电源选择电路与负载断开场合

五、选型与使用建议

  • 驱动电压:若希望达到标称 RDS(on),需保证 VGS ≈ -10V;在 5V 或更低 VGS 下请参考厂方详细参数并测试实际导通损耗。
  • 开关速度优化:使用合适的栅极电阻以控制上升/下降边沿,避免过大的米勒诱发振荡;对快速开关场合需考虑 Qg 带来的驱动电流需求。
  • 热设计:在连续高电流场合应按 Pd/热阻进行热仿真并留足铜面积与散热路径,必要时限制持续电流或增加散热结构。
  • PCB 布局:靠近电源短路径放置去耦电容,减小寄生电感与电压尖峰;注意 ESD 与焊接工艺对 SOT-23 小封装的影响。
  • 测试验证:在目标温度与电压工况下进行实际损耗与温升测量,特别是高温下 RDS(on) 的上升会显著影响性能。

六、总结

WPM3022-3/TR 以小尺寸 SOT-23 封装提供 30V 等级的 P 沟道 MOSFET 解决方案,适合高侧开关和电源管理类应用。其在 VGS=10V 下具备较低导通电阻与适中栅电荷,适合对体积与成本敏感但需一定开关性能的场合。使用时重点注意栅极驱动幅值、开关损耗与热散设计,确保在目标工作点下的可靠性与效率。若需在低驱动电压或高频开关下优化性能,建议在电路中做原型验证或选择专门的逻辑级/低 Qg 器件替代。

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