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UMW AO4406A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UMW AO4406A
- Type
- UMW
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- UMW
- Electronic Component
- AO4406A
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- 1 N
- Type
- N
- Electronic Component
- MOSFET
- Electronic Component
- 0.17g
- Electronic Component
- 1
- Electronic Component
- BM0228149413
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 4.5W
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 30V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AO4406A 产品概述
一、产品简介
AO4406A 是 UMW（友台半导体）推出的一款单通道 N 沟道增强型功率 MOSFET，封装为 SOP-8。器件额定漏源电压为 30V，适合中低压开关场合。器件的工作结温范围为 -55℃ 至 +150℃，在体积与性能之间取得平衡，适用于开关电源、功率分配与电源管理等应用。
二、主要特性
- 漏源电压 Vdss：30V
- 导通电阻 RDS(on)：10mΩ @ Vgs=10V（低阻性能，适合大电流传导）
- 连续漏极电流 Id：12A（峰值和散热条件依应用而定）
- 耗散功率 Pd：4.5W（与 PCB 散热设计关系密切）
- 输入/输出电容：Ciss=960pF，Coss=139pF，Crss=87pF
- 阈值电压 Vgs(th)：1.5V @ 250µA（具备一定逻辑电平特性）
- 栅极电荷 Qg：12.6nC @ 4.5V（衡量栅极驱动能量与开关损耗）
三、电气参数解读
- RDS(on) 标注在 Vgs=10V 时为 10mΩ，说明要达到最低导通损耗建议使用接近 10V 的栅极驱动电压；若只用 4.5V 驱动，实际 RDS(on) 会显著增大，需在设计时评估功耗。
- 栅极电荷 Qg=12.6nC（4.5V）表明驱动电流需求中等。对于高频开关，应选择合适的驱动器以降低开关损耗与切换时间。
- Ciss、Coss、Crss 等电容值影响开关瞬态与寄生耦合，Crss（反向传输电容）对 Miller 效应敏感，在快速切换时会影响栅电压波形与驱动稳定性。
四、典型应用场景
- DC-DC 降压/升压转换器的同步整流或开关管
- 电池管理系统和电源分配开关
- 直流电机驱动、继电器替代与功率开关
- LED 驱动、消费电子电源管理
五、封装与热管理
SOP-8 封装体积小、便于表贴，但热阻相对较大。器件 Pd=4.5W 是在特定测试条件下的标称值，实际应用中应通过合理 PCB 设计降低结-环境温差：加大散热铜箔面积、增加过孔或热 vias，将功率集中区导出到多层铜层，以确保结温在安全范围内。
六、使用建议与注意事项
- 若追求最低导通损耗，建议采用 10V 栅极驱动；若系统只能提供 4.5V 驱动，需重新评估导通损耗与热设计。
- 开关场合建议并联适当栅阻（数Ω到数十Ω）以抑制振铃并控制 dV/dt，同时在感性负载上配置续流二极管或吸收网络避免过压。
- 对关键参数（如 Vgs 最大值、脉冲 Id、SOA、热阻等）请参考原厂完整数据手册并按手册推荐进行布局与测试。
- 在高温或高电流工况下，关注器件温度上升对 RDS(on) 的影响，必要时做热仿真与温升测试。
总结：AO4406A 在 30V 级别中提供了较低的 RDS(on) 与中等 Qg，适合需要较小导通损耗又要求体积紧凑的电源与开关应用。正确的驱动与热管理是发挥其性能的关键。
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