WMSIC Electronic Components

MSKSEMI AON7401-MS AON7401

ModelAON7401-MS
PackageDFN3x3-8L
BrandMSKSEMI
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
MSKSEMI AON7401-MS
Type
MSKSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
AON7401-MS
Electronic Component
1
Package
DFN3x3-8L
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.054g
Electronic Component
1
Electronic Component
BM0230826848
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
37W
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.

AON7401-MS 产品概述

一、概述

AON7401-MS 是美森科(MSKSEMI)推出的一款 P 沟道功率 MOSFET,面向需要高电流、小尺寸和快速开关的电源管理与功率切换场景。器件额定漏源电压为 30V,低导通电阻与较小的栅极电荷量使其在高侧开关、小体积负载切换及便携设备电源管理中具有良好应用前景。封装为 SOD-123,适合对空间和封装高度有严格限制的应用,但在布局与散热设计上需额外注意。

二、主要参数

  • 类型:P 沟道 MOSFET
  • 数量:1 个 P 沟道
  • 漏源电压 (Vdss):30 V
  • 连续漏极电流 (Id):50 A(器件额定,实际受封装与散热限制)
  • 导通电阻 RDS(on):13 mΩ @ Vgs = -10 V, Id = 30 A(典型测量条件)
  • 最大耗散功率 (Pd):37 W(在规定散热条件下)
  • 栅极电荷量 Qg:22 nC @ 4.5 V(用于估算栅极驱动能量)
  • 输入电容 Ciss:2.215 nF
  • 输出电容 Coss:310 pF
  • 反向传输电容 Crss:237 pF
  • 工作温度范围:-55 ℃ 到 +150 ℃
  • 品牌:MSKSEMI(美森科)
  • 封装:SOD-123

三、电气与热特性说明

  • P 沟道 MOSFET 需要负向栅压(Vgs 为负)才能打开,典型完全导通驱动电压为 -10 V(RDS(on) 标注条件)。驱动时须保证栅极电压相对于源极为负值以达到标称 RDS(on)。
  • RDS(on) 在给定驱动条件下非常低(13 mΩ),在中高电流下可保证较小的导通损耗,但导通损耗与电流平方成正比。例如在 30 A 时,理论导通损耗约为 P = I^2·R ≈ 30^2·0.013 ≈ 11.7 W;在 50 A 时接近 32.5 W,接近器件 Pd 标称值。因此在高电流工况下必须保证足够散热。
  • 栅极电荷 Qg = 22 nC(于 4.5 V 测得)意味着栅极驱动能量较小,可实现较低栅极驱动损耗。栅极能量近似为 E ≈ 0.5·Qg·Vdrive(若用 4.5 V 驱动,则 E ≈ 0.5·22nC·4.5V ≈ 49.5 nJ;在 100 kHz 开关频率下,栅极驱动功耗约 4.95 mW)。实际驱动电压与频率增加时,驱动损耗线性上升。
  • 器件电容(Ciss、Coss、Crss)对开关瞬态、回灌和 EMI 有直接影响:较大的 Ciss 会增加栅极能量需求,较大的 Crss(米勒电容)会影响开关过渡过程,需要配合合理的门极回路与阻尼设计。

四、典型应用场景

  • 电池供电设备的高侧开关与电源反向保护(便于在输入端实现简单的电源断开/保护)
  • 便携式设备、移动电源的负载切换与电源路径管理
  • 同步整流、电源管理 IC 中的 P 沟道高侧开关(低压、中电流场合)
  • 音频静音/电源管理、USB/Type-C 电源保护等需要小体积功率开关的场合

五、设计与布局建议

  • 散热:SOD-123 封装受限,实际可流经的高电流受 PCB 铜箔面积与散热路径限制。建议在 PCB 上使用大面积铜箔、加热沉或多层过孔导热,以降低结-壳热阻并充分利用器件 Pd。高电流长期工作前应做温升测试。
  • 布局:保持漏极/源极主电流回路尽量短、宽,减少寄生电阻与感抗;门极驱动回路应短且有适当的串联门极电阻(例如 4.7–100 Ω,根据 dv/dt 与环路情况调节),以抑制振荡并控制开关速率。
  • 保护:在有电感负载或输入瞬态的场合加入 TVS、RC 阻尼或缓冲电路,防止过压和尖峰使 Vds 超限。对栅极建议并联下拉/上拉电阻(根据 P 沟道逻辑可置为上拉),避免悬浮导致误导通。
  • 驱动:确保驱动器能提供足够电压幅度(负向 Vgs),并注意门极电压不要超过器件额定 Vgs 限值(通常 ±20 V,但以厂方数据表为准)。

六、使用注意事项

  • 器件参数(如 Id、Pd)受封装和 PCB 散热设计影响,数据表的额定值通常在特定测试条件下测得,实际工程使用需验证热性能。
  • P 沟道器件的导通控制为负向栅压,接口逻辑与 N 沟道不同,设计时注意信号极性与电平转换。
  • ESD 与钳位保护:功率 MOSFET 对静电敏感,装配与测试注意防静电措施。

总结:AON7401-MS 在 30V 等级下提供了低 RDS(on)、较小栅极电荷与较高额定电流的组合,适合空间受限且要求高效切换的小功率/中功率电源管理场景。设计时需重视封装散热限制与驱动电压极性,合理的 PCB 布局与保护电路能显著提升稳定性与可靠性。若需更精确的热阻、开关能耗曲线或典型应用电路,建议参考厂方完整数据手册或联系厂商技术支持获取进一步参数。

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