WMSIC Electronic Components

VBsemi VBQF2412

ModelVBQF2412
PackageDFN-8(3x3)
BrandVBSEMI
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
VBsemi VBQF2412
Type
VBSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
VBSEMI
Electronic Component
VBQF2412
Electronic Component
1
Package
DFN-8(3x3)
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.15g
Electronic Component
1
Electronic Component
BM0260122337
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
48W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
40V

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

VBQF2412 产品概述

一、主要特性

VBQF2412 是 VBsemi(微碧半导体)推出的一款高电流、低导通损耗的 P 沟道绝缘栅场效应管,面向高侧开关和电源保护应用。器件亮点包括:40V 耐压、33.1A 连续漏极电流、优异的导通电阻以及适用于紧凑空间的 DFN-8 (3×3) 封装。

二、关键电气参数

  • 类型:P 沟道 MOSFET(单个)
  • 漏-源电压 Vdss:40V
  • 连续漏极电流 Id:33.1A
  • 导通电阻 RDS(on):12 mΩ @ VGS = 10V;13 mΩ @ VGS = 4.5V
  • 漏极耗散功率 Pd:48W
  • 阈值电压 VGS(th):2.5V
  • 总栅极电荷 Qg:90 nC @ 10V;43.1 nC @ 4.5V
  • 输入电容 Ciss:5.125 nF;输出电容 Coss:615 pF;反向传输电容 Crss(Miller):554 pF
  • 工作结温度范围:-55 ℃ ~ +150 ℃

以上参数为器件典型/测试条件下数据,实际设计中应参考完整数据手册的典型曲线和额定值。

三、封装与热管理

VBQF2412 使用 DFN-8 (3×3 mm) 紧凑封装,适合高密度布板。由于封装体积较小,热阻相对较高,建议:

  • 在 PCB 设计中使用大面积散热铜箔并连接到内部或底部散热垫,增加多条过孔至内层/下层散热层;
  • 将热源与敏感信号分离,避免局部过热;
  • 在高功率工作点上考虑风冷或辅助散热片,确保结温在安全范围内。

四、典型应用场景

  • 高侧开关与电源路径控制(例如电池保护、供电切换)
  • 便携与车载电子的小功率高侧开关(注意车规环境需验证)
  • 反向电流保护、负载断开控制
  • 需要较低导通损耗与小型化封装的功率管理模块

五、使用建议与注意事项

  • P 沟道 MOSFET 的门极驱动相对于源极为负(要使器件导通,VGS 需为负值),当用于高侧开关且输入电压较高时,应注意门极与源极之间的最大电压限制并采取限压保护(齐纳二极管或专用门极钳位器);若驱动电平不足,可考虑使用驱动变换或 N 沟道+驱动替代方案。
  • 栅极电荷 Qg 较大(90 nC @10V),高速切换时对驱动能力要求高,应使用驱动器或配置合适的门极电阻以控制开关速度并减小振铃。
  • Crss(Miller 电容)影响开关瞬态,快速切换时易产生米勒效应导致开关延时与过渡损耗,应在布局和驱动上优化以减少开关损耗与 EMI。
  • 在 PCB 布局上保持漏源电流回路宽短,栅极走线尽量短并靠近器件,门极加阻尼电阻可抑制振荡。
  • 器件结温与散热能力直接影响可靠性,长时间高功率运行需保证良好散热与热平衡。

六、选型参考

若系统需要更低的 RDS(on) 或更高电压裕量,可考虑更高耐压或更大封装的器件;若希望降低门极驱动复杂度,可评估 N 沟道 MOSFET 配合驱动器或使用集成高侧开关。VBQF2412 在 40V 耐压、较低导通电阻与小封装场合具有良好的性价比,适合空间受限且需高侧开关功能的中高电流应用。

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