WMSIC Electronic Components

XNRUSEMI XR4406B

ModelXR4406B
PackageSOP8
BrandXNRUSEMI
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XNRUSEMI XR4406B
Type
XNRUSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XNRUSEMI
Electronic Component
XR4406B
Electronic Component
1
Package
SOP8
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.173g
Electronic Component
1
Electronic Component
BM0264844135
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
2.5W
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.

XR4406B 产品概述

XR4406B 是 XNRUSEMI(新锐)推出的一款高单元密度沟槽式 N 沟道功率 MOSFET,封装为 SOP8。该器件在 30V 漏源耐压等级下提供低导通电阻和适中的栅极电荷,专为高密度同步降压转换器和常见功率管理应用优化,满足 RoHS 与绿色产品要求,并提供 100% 雪崩能量耐量保证与完整功能可靠性认证。

一、主要电气参数速览

  • 类型:N 沟道 MOSFET
  • 漏源电压 Vdss:30 V
  • 连续漏极电流 Id:8 A
  • 导通电阻 RDS(on):25 mΩ @ Vgs=10 V
  • 功耗 Pd:2.5 W(封装热限制)
  • 阈值电压 Vgs(th):2.5 V(典型测试条件)
  • 总栅极电荷 Qg:5.2 nC @ Vgs=10 V
  • 输入电容 Ciss:490 pF
  • 输出电容 Coss:79 pF
  • 反向传输电容 Crss:61 pF
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SOP8

二、性能特点与优势

  • 低导通电阻与较高电流承载能力:25 mΩ 的 RDS(on) 在 10V 驱动下可显著降低导通损耗,适合中小功率同步整流场合。
  • 平衡的开关性能:Qg=5.2 nC 与 Ciss/Coss/Crss 配合,使得在中等开关频率下具备较好的开关效率与可驱动性,适合几百 kHz 范围内的 DC-DC 转换器。
  • 高可靠性:100% 雪崩能量耐量和完整功能可靠性认证,对误操作或瞬态冲击有更好的容错能力。
  • 环保合规:符合 RoHS 与绿色产品要求,便于符合整机环保设计规范。

三、典型应用

  • 同步降压(Synchronous Buck)转换器的同步整流管或功率开关
  • 点式负载电源(Point-of-Load)与通信、电源管理模块
  • 电池供电系统与便携设备的功率路径管理
  • 低压电机驱动、LED 驱动及其他中小功率开关电源应用

四、封装与热管理建议

  • SOP8 封装在空间受限的板级设计中具有封装密度优势,但热阻相对较高。建议在 PCB 设计上采用较大面积的铜箔散热区,同时在底层添加多片平行铜层和热导通孔(thermal vias)以降低结壳温度。
  • 额定耗散功率 Pd=2.5 W 为封装极限条件,实际应用中应考虑环境温度和散热条件进行功率疏导与热降额计算。
  • 在高频开关应用中,合理设置栅极电阻以控制开关过渡并减小振铃与 EMI,同时注意栅极驱动电压需接近 10V 以充分发挥低 RDS(on) 性能。

五、选型注意事项

  • 虽然 Vgs(th) 标称为 2.5 V,但实现标称 RDS(on) 需在 10 V 门极驱动下进行评估;若应用为 5 V 或更低驱动电平,请确认导通损耗与温升是否可接受。
  • Qg 与 Ciss 等电容参数影响驱动器选型与开关损耗估算,在高频设计中应计算驱动能量和功耗。
  • 若需更高电流能力,可考虑并联多颗器件,但需注意布局与电流分配,并确保热管理同步提升。
  • 利用器件的雪崩能量耐量特性可提高系统稳健性,但不应作为常态承受高能冲击的替代方案,应辅以合理的保护电路(如 TVS、限流等)。

XR4406B 适合追求封装密度与可靠性的中低压同步电源解决方案,通过合理的驱动与热设计,可在多种电源管理场景中提供良好的损耗与可靠性表现。若需更详细的电气特性曲线与封装尺寸,请参考 XNRUSEMI 官方规格书或联系技术支持。

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