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WILLSEMI WNM3040-8/TR WNM3040
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- WILLSEMI WNM3040-8 / TR
- Type
- WILLSEMI
- Minimum package
- 5000
Technical parameters
- Electronic Component
- WILLSEMI
- Electronic Component
- WNM3040-8/TR
- Electronic Component
- 1
- Package
- PDFN3333-8L
- Electronic Component
- 1 N
- Type
- N
- Electronic Component
- MOSFET
- Electronic Component
- 0.194g
- Electronic Component
- 1
- Electronic Component
- BM0227559841
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 14W
- Electronic Component
- 5000
- Voltage(Vdss)
- 30V
- Capacitor(Ciss)
- 540pF
- Output Capacitor(Coss)
- 95pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WNM3040-8/TR 产品概述
一、产品简介
WNM3040-8/TR 是 WILLSEMI（韦尔）推出的一款高可靠性 N 沟道功率场效应晶体管，封装为 PDFN3333-8L。器件额定漏源电压 Vdss 为 30V，适合低压到中低压开关应用。工作温度范围宽 (-55℃ ~ +150℃)，适用于要求广泛温度稳定性的工业和汽车类电子系统。
二、主要电气参数
- 导通电阻 RDS(on)：24.5 mΩ @ Vgs = 4.5 V
- 连续漏极电流 Id：19 A（器件热管理条件下）
- 耗散功率 Pd：14 W（参考封装与环境条件）
- 阈值电压 Vgs(th)：2.5 V @ Id = 250 μA
- 总栅极电荷 Qg：10.6 nC @ Vgs = 10 V
- 输出电容 Coss：95 pF
- 输入电容 Ciss：540 pF @ 15 V
- 反向传输电容 Crss：68 pF @ 15 V
这些参数表明 WNM3040-8/TR 在中低压、高电流开关场景中拥有较低的导通损耗和良好的开关性能，适合在 4.5V 门极驱动或更高驱动电压下工作以降低导通损耗。
三、性能与应用场景
- 开关电源（DC-DC 转换器）、同步整流：低 RDS(on) 在导通状态下降低能耗，提高效率；适合降压同步整流或一级开关管。
- 电机驱动与负载开关：较高的 Id 使其可驱动较大负载电流，适合中小功率电机控制或功率分配。
- 汽车与工业电子：耐高低温范围宽，适应车规级或严苛工业环境（需结合完整车规认证资料）。
- 其它功率管理与负载保护电路。
四、封装与散热注意事项
PDFN3333-8L 为紧凑封装，需良好 PCB 散热设计：
- 使用较大散热焊盘与多层铜箔连接至内部散热层；
- 减小器件与关键走线的热阻和寄生电感；
- 在高电流应用下考虑器件热结温度与环境温度的降额；Pd 与 Id 需按实际 PCB 条件重新计算和验证。
五、驱动与开关设计建议
- 推荐驱动电压：4.5 V 可达到表征 RDS(on)，若需更低导通损耗可采用 10 V 驱动（但 Qg 相应增加）；
- 栅极电阻：为控制 dv/dt 与振铃，建议串联合适阻值的栅极电阻并根据开关频率调整；
- 保护措施：因数据手册中未列出能量吸收（单脉冲、雪崩）极限，建议在感性负载场合使用吸收器或 TVS 二极管限制过压。
六、使用注意与可靠性提示
- 在高温或高频条件下需做热-电联合仿真与测试以确定热降额曲线；
- 考虑布局以最小化漏极-源极回流环路面积，实现低 EMI；
- 参考完整器件数据手册中的电气特性曲线和封装热阻参数，进行系统级验证。
总结：WNM3040-8/TR 以 30V 的耐压、24.5 mΩ 的低导通电阻和较高的连续电流能力，结合宽温工作范围和紧凑封装，适用于中低压高效率开关与功率管理应用。具体应用设计应结合 PCB 散热、驱动方案及系统保护策略共同优化。
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