WMSIC Electronic Components

XNRUSEMI XR6946

ModelXR6946
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 XR6946
Type
XNRUSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XNRUSEMI
Electronic Component
XR6946
Electronic Component
1
Package
SOP8
Electronic Component
2 N
Electronic Component
MOSFET
Electronic Component
0.173g
Electronic Component
1
Electronic Component
BM0264974407
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.5W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
60V
Capacitor(Ciss)
1.148nF

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

XR6946 产品概述

XR6946 是 XNRUSEMI(新锐)推出的一款高细胞密度沟槽式双通道 N 沟道 MOSFET,封装为 SOP8,针对大多数同步降压转换器与开关电源拓扑提供优化的导通电阻与栅极电荷特性。器件兼顾导通损耗与开关损耗,在中小功率 DC–DC 设计中具有良好性价比,并符合 RoHS 与绿色产品要求。

一、核心参数

  • 器件类型:双通道 N 沟道 MOSFET(2 × N)
  • 漏-源电压 Vdss:60 V
  • 连续漏极电流 Id:6 A
  • 导通电阻 RDS(on):28 mΩ @ Vgs = 10 V
  • 功耗耗散 Pd:1.5 W
  • 阈值电压 Vgs(th):1.6 V
  • 总栅极电荷 Qg:20.3 nC @ Vgs = 30 V
  • 输入电容 Ciss:1.148 nF
  • 反向传输电容 Crss:49.4 pF
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SOP8
  • 合规:RoHS / 绿色

二、产品亮点

  • 高细胞密度沟槽式结构:在保持低 RDS(on) 的同时有效降低芯片尺寸与寄生电阻,适合需要较低导通损耗的同步整流场合。
  • 平衡开关性能:28 mΩ(@10 V)与 20.3 nC 的总栅极电荷在开关频率与驱动能力之间取得平衡,既能降低导通损耗也控制栅驱损耗。
  • 封装与集成:SOP8 双通道形式便于把高侧/低侧 MOSFET 安排在同一封装或实现空间受限的电路布局。
  • 宽温度范围与可靠性:-55 ℃ 到 +150 ℃ 的工作温度保证在工业级应用中的稳定性。

三、典型应用场景

  • 同步降压(Synchronous Buck)转换器:作为高低侧 MOSFET 的优选器件,适用于笔记本、电源模块及板载 DC–DC 方案。
  • 开关电源与电池管理:用于中小功率电源管理、负载开关及续流路径。
  • 电机驱动与功率开关:在对导通损耗和开关速度有中等要求的场合表现良好。
  • 通用电源与工业控制设备:适合集成度高且受限于 PCB 面积的应用。

四、设计与布局建议

  • 栅极驱动:若要求最低 RDS(on),建议驱动电压接近 10 V;若采用逻辑电平驱动(如 5 V),RDS(on) 会增加,需评估导通损耗。由于 Vgs(th) ≈1.6 V,不应以阈值为工作点,应提供足够的栅极电压以完全增强沟道。
  • 栅极驱动回路:使用合适的栅极电阻以抑制振铃并控制开关过渡,避免过大栅极阻抗导致开关损耗上升。Q g 为 20.3 nC,栅驱电流需求需在设计中考虑。
  • PCB 布局:最小化开关回路环路面积,靠近器件放置输入旁路电容与续流二极管(或同步 MOSFET),使用宽铜箔与多层走线提高散热与电流承载能力。为降低结到环境的热阻,必要时在器件下方或周围布置过孔并连至内部散热层。
  • 热管理:Pd 为 1.5 W(器件功耗限值),在高功率或高环境温度工况需采取散热措施,如扩大铜箔面积、增加热过孔或考虑外部散热器。
  • 开关瞬态处理:对高 dv/dt 场合应注意寄生电容(Crss ≈ 49.4 pF)引起的米勒效应,可能导致误导通。必要时增加米勒电阻或使用驱动器带死区控制。

五、可靠性与合规

XR6946 满足 RoHS 与绿色产品要求,封装稳定,工作温度范围适合工业级应用。推荐在实际产品中进行热仿真与长期应力测试,以验证在目标负载、频率和环境条件下的可靠性与寿命。

总结:XR6946 在 60 V 电压等级、6 A 电流能力和低至 28 mΩ 的导通电阻之间实现了良好平衡,适合用于空间受限且对效率与成本有要求的同步降压与电源管理场景。合理的驱动与热设计可以最大化其性能与可靠性。

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