WMSIC Electronic Components

XNRUSEMI XR50N03

ModelXR50N03
PackageTO252-3L
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 XR50N03
Type
XNRUSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XNRUSEMI
Electronic Component
XR50N03
Electronic Component
1
Package
TO252-3L
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
1g
Electronic Component
1
Electronic Component
BM0264844080
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
30.5W
Electronic Component
Electronic Component
Electronic Component
2500
Voltage(Vdss)
30V

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

XR50N03 产品概述

一、产品简介

XR50N03 是新锐(XNRUSEMI)推出的一款高单元密度沟槽式 N 沟道功率 MOSFET,针对同步降压转换器与高效率功率开关场景优化。器件在 30V 漏源电压下提供极低的导通电阻与适中的栅极电荷,兼顾导通损耗与开关性能,满足 RoHS 与绿色环保要求,并 100% 保证雪崩耐量与功能可靠性。封装为 TO252-3L(DPAK),便于表面贴装与 PCB 散热设计。

二、主要参数(摘要)

  • 类型:N 沟道 MOSFET
  • Vdss(最大漏源电压):30 V
  • 连续漏极电流 Id:50 A
  • RDS(on):10 mΩ @ Vgs = 10 V
  • 阈值电压 Vgs(th):约 2.5 V
  • 总栅极电荷 Qg:19 nC @ 10 V
  • 输入电容 Ciss:1.011 nF
  • 输出电容 Coss:142 pF
  • 反向传输电容 Crss:119 pF
  • 最大耗散功率 Pd:30.5 W
  • 工作温度范围:-55 ℃ ~ +175 ℃
  • 封装:TO252-3L(DPAK)

三、关键特性与产品优势

  • 低 RDS(on):在 10 V 驱动下 RDS(on) 仅 10 mΩ,显著降低导通损耗,适合高效率同步整流或主开关应用。
  • 适中栅极电荷:Qg=19 nC 在同类器件中属于折衷型,支持较快切换同时不会对驱动器提出过高瞬时电流要求。
  • 宽工作温度与高可靠性:适用于工业级环境,并经 100% 雪崩测试,增强短路与异常工作场景下的鲁棒性。
  • 兼容表面贴装制造:TO252-3L 方便自动化贴片与 PCB 散热处理。

四、典型应用

  • 同步降压(buck)转换器的高边/低边功率开关
  • 开关电源(SMPS)、点对点供电模块
  • 电机驱动与电源管理开关
  • 电池保护与负载开关场合

五、设计与使用建议

  • 推荐栅极驱动电压:Vgs = 10 V 以达到标称 RDS(on)。阈值 Vgs(th) ≈ 2.5 V,仅能保证器件导通,不适合作为低损耗工作点。
  • 散热管理:在满载 50 A 时理论导通损耗 Pcond = I^2·RDS(on) ≈ 50^2·0.01 = 25 W(理论值,未考虑温度系数与实际结温上升),接近器件 Pd=30.5 W,上 PCB 时须配合大面积铜箔或散热片并注意夹层导热。
  • 栅极驱动与开关损耗:平均栅极驱动电流 Ig_avg ≈ Qg·f。举例:f = 100 kHz 时 Ig_avg = 19 nC × 100 kHz = 1.9 mA;栅极损耗 Pgate ≈ 0.5·Qg·Vgs·f ≈ 9.5 mW(Vgs=10 V)。输出电容 Coss 导致的每次充放电能量 E ≈ 0.5·Coss·Vdss^2 ≈ 63.9 nJ, f=100 kHz 时对应约 6.4 mW。实际开关损耗还与死区、上升/下降时间与负载电流重叠能量相关。
  • 布局要点:最小化开关回路回路电感(电感会放大过冲和振铃);栅极到驱动器之间适当串联小阻以控制振铃并保护驱动;敷铜尽量增大器件散热区并使用热过孔与多层板过孔导热。
  • 保护与测试:尽管器件做了雪崩测试保障,但建议在系统设计中加入过流/过温保护与可靠的软起动策略。

六、封装与可靠性

TO252-3L(DPAK)封装适合贴片生产并提供良好热路径,适用表面贴装工艺。器件符合 RoHS 与绿色产品要求,并宣称 100% 雪崩耐量与完整功能可靠性,适合对可靠性有较高要求的工业与消费电源设计。

七、总结

XR50N03 是一款面向中低压(30 V)高电流应用、兼顾低导通损耗与合理开关性能的沟槽式 N 沟道 MOSFET。其低 RDS(on)、适中 Qg 与工业级工作温度范围,使其成为同步降压转换器、功率开关以及电机/电源管理系统中的优选元件。在设计时应重视散热布局与驱动策略,以发挥器件的最佳性能与长期可靠性。

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