WMSIC Electronic Components

UMW 30N03A

Model30N03A
PackageTO-252
BrandUMW
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
UMW 30N03A
Type
UMW
Minimum package
2500

Technical parameters

Electronic Component
UMW
Electronic Component
30N03A
Electronic Component
1
Package
TO-252
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.48g
Electronic Component
1
Electronic Component
BM0229956514
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
105W
Electronic Component
2500
Voltage(Vdss)
30V
Capacitor(Ciss)
1.963nF
Gate (Qg)
41nC@10V

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

30N03A 产品概述

30N03A 是 UMW(友台半导体)推出的一款高性能 N 沟道功率 MOSFET,封装为 TO-252(DPAK),面向需要大电流、低导通损耗和紧凑封装的功率电子应用。器件额定耐压 30V,连续漏极电流最高可达 90A,典型导通电阻在不同栅压下表现优秀,适用于同步整流、DC-DC 转换、负载开关与电机驱动等场景。

一、产品简介

30N03A 为单个 N 沟道 MOSFET,工作温度范围宽(-55℃ 至 +150℃),承受严格的工业环境。器件在 10V 栅压下的导通电阻非常低(RDS(on) = 3.9mΩ),在较低的栅压 4.5V 下仍保持良好导通(RDS(on) = 6.5mΩ),这使其在既有 12V/24V 系统和部分 5V 驱动场合均有良好适配性。

二、主要电气参数

  • 类型:N 沟道功率 MOSFET
  • 漏源电压 Vdss:30V
  • 连续漏极电流 Id:90A
  • 最大耗散功率 Pd:105W
  • 导通电阻 RDS(on):3.9mΩ @ VGS=10V;6.5mΩ @ VGS=4.5V
  • 阈值电压 VGS(th):1.7V @ ID=250µA
  • 总栅电荷 Qg:41nC @ VGS=10V
  • 输入电容 Ciss:1.963nF @ 15V
  • 反向传输电容 Crss(Miller):221pF
  • 工作温度范围:-55℃ ~ +150℃
  • 封装:TO-252(DPAK)
  • 品牌:UMW(友台半导体)

三、关键特性与设计要点

  • 低导通损耗:在 10V 驱动下极低的 RDS(on)(3.9mΩ)可显著降低导通损耗,适合高电流路径,提升效率并减少发热。
  • 中等开关能耗:Qg=41nC 表示器件需要中等能量来切换。若使用 1A 的栅极驱动电流,理论上给满栅(10V)大约需 41ns。设计高速开关时应考虑驱动能力与驱动器功耗平衡。
  • Miller 与寄生电容:Ciss 和 Crss 值提示器件在开关期间的 Miller 效应和 dv/dt 敏感性,设计时需通过合适的驱动速率与阻尼(如串联栅电阻)控制过冲与电磁干扰。
  • 宽温度工作能力:-55℃ 到 +150℃ 的额定温度保证在严苛环境下仍能可靠工作,但热设计需确保结温在安全范围内。

四、典型应用场景

  • 同步整流和降压转换器(Buck)中的开关管,利用低 RDS(on) 降低导通损耗。
  • DC-DC 电源模块、服务器与通信电源的功率级。
  • 电机驱动(低压电机或驱动半桥),以及车载电源管理(在符合系统电压范围内)。
  • 功率负载开关、电池断路与电源分配开关。
  • 逆变器、UPS、小型电源管理模块等需高电流传输的场合。

五、封装、热管理与可靠性

TO-252(DPAK)封装适合表面贴装工艺,便于自动化装配。尽管封装紧凑,器件最大耗散功率达到 105W(在良好散热条件下),设计时应重点考虑 PCB 散热与热阻:

  • 使用大面积铜箔散热铺设(底层或多层散热通量),并通过过孔将热量传导至内层或背面散热层。
  • 在高功率或连续高电流应用中,考虑使用散热底座或外部散热片来降低结温。
  • 保持低阻抗的电流回路,缩短高电流导线长度,降低寄生电感,减小开关应力。
  • 注意焊接与回流工艺对封装和热性能的影响,确保焊点完整以获得最佳导热路径。

六、选型与使用建议

  • 若能提供 10V 的栅极驱动电压,优先使用 10V 驱动以获得最低的导通电阻和最低的导通损耗;在 4.5V 驱动条件下仍可使用,但要留意较高的 RDS(on) 带来的功耗增加。
  • 对于高速开关,建议在栅极串联合适的阻值以限制 di/dt/dv/dt 并抑制振荡;同时配合吸收电路(RC、TVS)保护器件免受瞬态过压。
  • 估算开关损耗时应同时考虑导通损耗与开关损耗,Qg 和 Crss 的影响不可忽视。栅极驱动器应能提供足够电流以达到设计开关时间。
  • 在布局上保证功率回路短且宽,源极和地的返回路径要集中且低阻,减小寄生感抗以降低 EMI。

总结:30N03A 在 30V、90A 级别中以低 RDS(on) 与良好的封装适配性突显出其在高电流、紧凑功率设计中的竞争力。合理的栅极驱动、热管理与 PCB 布局能发挥其最佳性能。

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