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KUU 4409
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU 4409
- Type
- KUU
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- 4409
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- 1 P
- Type
- P
- Electronic Component
- MOSFET
- Electronic Component
- 0.162g
- Electronic Component
- 1
- Electronic Component
- BM0264873493
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 3.1W
- Electronic Component
- Electronic Component
- Electronic Component
- 4000
- Voltage(Vdss)
- 30V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
4409 P沟道 MOSFET 产品概述
一、产品简介
KUU 4409 为单只 P 沟道场效应管，封装为 SOP-8，适用于作为高侧开关或反向保护元件。器件额定漏源电压 Vdss 为 30V，连续漏极电流 Id 为 15A（受散热限制），最大耗散功率 Pd 为 3.1W。典型标称用途包括低压电源管理、便携设备电源开关、汽车电子辅助电路及一般功率开关场合。
二、主要电气参数
- 漏源电压：30V（最大耐压）
- 连续漏极电流：15A（在良好散热条件下）
- 导通电阻 RDS(on)：15mΩ @ Vgs = 4.5V（标称）——注意 P 沟道器件的 Vgs 为负极性，本文中 4.5V 表示驱动幅值，即 Vgs ≈ -4.5V 时的导通电阻。
- 耗散功率 Pd：3.1W（封装及环境温度影响较大）
- 阈值电压：|Vgs(th)| ≈ 3V（标称，P 沟道阈值为负值）
- 栅极电荷 Qg：48nC @ 10V（较大，影响开关损耗与驱动能力）
- 输入电容 Ciss：2.9nF；输出电容 Coss：410pF；反向传输电容 Crss：280pF
- 工作温度范围：-55℃ ~ +150℃
三、性能特性与注意事项
- 低 RDS(on)（15mΩ）使其在导通时损耗较小，但实际发热与功率耗散受 PCB 散热能力影响显著；SOP-8 封装的散热能力有限，需在布局上增加铜箔和散热通道。
- 较大的栅极电荷（48nC）表明在频繁开关或高频应用中，栅极驱动器需具备足够电流能力，否则开关速度受限且开关损耗增加。
- 对于 P 沟道器件，驱动电平设计需注意极性：完全导通时 Vgs≈-4.5V（或更负），关断时 Vgs≈0V。若驱动电压幅值不足，RDS(on) 会上升，发热增加。
- Coss/Crss 值提示在感性负载下需考虑回收能量与吸收网络，建议并联 TVS 或 RC 吸收器以抑制过压与振铃。
四、封装与布局建议
- SOP-8 封装利于自动贴装与焊接，但热阻相对较高。推荐在器件下方和周围布大面积铜箔，并在必要位置打通孔与底层散热铜层连通以降低结壳温升。
- 栅极到驱动器之间加串联门阻（10~100Ω）可抑制振荡并限制峰值电流；同时在驱动输出和地之间适当增加去耦电容以提供瞬态电流。
- 对于高电流路径，使用加厚走线、宽铜带及短连接，以降低寄生阻抗和功耗。
五、典型应用
- 作为高侧功率开关用于 12V/24V 系统中的负载断开/接通控制。
- 电池保护与反接保护开关（P 沟道便于高侧控制，无需升压驱动）。
- 电子开关、低压 LED 驱动、便携设备电源管理模块。
六、总结
KUU 4409 是一款适合中等电流、高侧开关场景的 P 沟道 MOSFET，具有较低 RDS(on) 和适中的电压等级。使用时应重视栅极驱动电流与散热设计，针对感性负载添加抑制措施，以发挥其可靠、高效的开关性能。
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