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XNRUSEMI XR4884B
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- XNRUSEMI XR4884B
- Type
- XNRUSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- XNRUSEMI
- Electronic Component
- XR4884B
- Electronic Component
- 1
- Package
- SOP8
- Electronic Component
- 2 N
- Type
- N
- Electronic Component
- MOSFET
- Electronic Component
- 0.19g
- Electronic Component
- 1
- Electronic Component
- BM0264974368
- Power Dissipation(Pd)
- 12.5W
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 40V
- Capacitor(Ciss)
- 850pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
XR4884B 产品概述
一、产品概览
XR4884B 是 XNRUSEMI（新锐）推出的一款高单元密度沟槽式双 N 沟道 MOSFET，封装为 SOP8，适用于多数小功率开关与负载开关场合。器件在低导通电阻与良好开关性能之间取得平衡，便于在有限 PCB 面积内实现高效功率控制。
二、主要电气参数
- 器件类型：双 N 沟道 MOSFET（SOP8）
- 漏源电压 Vdss：40 V
- 连续漏极电流 Id：20 A
- 导通电阻 RDS(on)：22.6 mΩ @ Vgs = 4.5 V
- 耗散功率 Pd：12.5 W（封装级别）
- 阈值电压 Vgs(th)：2.0 V
- 总栅极电荷 Qg：12 nC @ Vgs = 10 V
- 输入电容 Ciss：850 pF
- 输出电容 Coss：78 pF
- 反向传输电容 Crss：69 pF
三、优势与设计要点
- 低导通电阻：22.6 mΩ（4.5 V 驱动）在低压差与中大电流场合能显著降低导通损耗，适合负载开关与功率路径控制。
- 双管封装：SOP8 内含两个 N 沟道 MOSFET，有利于节约 PCB 面积并简化多通道设计（请参考器件数据手册确认引脚与内部连接方式）。
- 开关性能平衡：12 nC 的栅极电荷与中等 Ciss/Coss 值，使其在中等频率开关（如同步整流、升降压开关电源）中表现良好；高频应用需兼顾驱动能量与开关损耗。
- 可靠性与合规：符合 RoHS 要求，并通过全功能可靠性认证，适合商用与工业类产品选型。
四、典型应用场景
- 负载开关与电源管理（便携设备、背光驱动、系统电源分配）
- 小功率 DC-DC 转换器（同步降压/升压应用）
- 电池保护与电源路径选择
- 电机驱动低压驱动级、继电器替代应用
五、封装与热管理建议
SOP8 封装提供良好的安装便利性，但封装尺寸限制了散热能力。考虑到 Pd = 12.5 W，在实际应用中应：
- 估算器件在实际工作点的导通与开关损耗，并保证器件结温在可靠范围内；
- 在 PCB 设计时增加铜箔面积、放置热沉或多层热通孔以降低结-到-环境热阻；
- 对高频开关应用，注意栅极驱动回路布局以减少振铃与电磁干扰。
六、选型建议与注意事项
- 若系统栅极驱动电压为 4.5 V，可直接受益于器件的低 RDS(on)；若使用 10–12 V 驱动，开关速度更快，但需验证驱动器能提供相应 Qg。
- 在并联使用或作为多通道方案时，需关注器件一致性、热均衡与 PCB 布局。
- 选型时请参考完整数据手册确认最大额定值（Vgs 最大值、脉冲电流、结温范围等）及引脚定义。
七、结论
XR4884B 以其低 RDS(on)、适中的栅极电荷和双通道 SOP8 封装，为小功率开关和负载开关应用提供了高性价比的解决方案。通过合理的驱动与热设计，可在各类消费与工业产品中实现可靠、高效的功率控制。若需原理图建议、布局示例或更多电气曲线，请提供进一步需求。
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