WMSIC Electronic Components

XNRUSEMI XR8814A

ModelXR8814A
PackageTSSOP-8
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 XR8814A
Type
XNRUSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XNRUSEMI
Electronic Component
XR8814A
Electronic Component
1
Package
TSSOP-8
Electronic Component
2 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.139g
Electronic Component
1
Electronic Component
BM0264844138
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.63W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
20V

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

XR8814A N沟道MOSFET产品概述

一、产品核心定位与应用场景

XR8814A是新锐半导体(XNRUSEMI)推出的双N沟道低压大电流MOSFET,专为12V以下电压域的高电流密度、小型化应用设计,核心是平衡「低导通损耗、易驱动性、紧凑封装」与「宽温可靠性」,覆盖多场景需求。

典型应用场景包括:

  • 移动电源/充电宝快充模块(同步降压、充放电控制)
  • TWS耳机充电盒(电池充放电管理、接口开关)
  • 小型DC-DC降压转换器(12V→5V/3A、9V→5V/2A等)
  • 智能手机/平板USB Type-C接口保护电路
  • 工业控制中的低压信号开关、小功率负载驱动

二、关键电参数深度解析

XR8814A的参数围绕「低压高效、易驱动、宽温可靠」设计,核心参数的实际意义如下:

1. 低压大电流承载能力

  • 漏源击穿电压(Vdss):20V,覆盖5V/9V/12V等主流低压系统,满足快充、电池管理的电压需求;
  • 连续漏极电流(Id):8A,可稳定承载3-5A持续工作电流(如快充模块输出),支持瞬时过载(充电启动瞬间)。

2. 低导通损耗设计

  • 导通电阻(RDS(on)):10mΩ@4.5V/3.5A,是衡量效率的核心指标——3.5A下单管损耗仅3.5²×0.01=0.1225W,双管并联损耗进一步降低,发热控制更优。

3. 低阈值电压易驱动

  • 阈值电压(Vgs(th)):700mV,远低于行业常见1V水平,可直接由3.3V/5V单片机驱动,无需电平转换电路,简化设计、降低BOM成本。

4. 开关与电容特性

  • 栅极电荷量(Qg):11.3nC@15V,低Qg减少开关损耗,适合1MHz以下高频应用(如DC-DC转换器);
  • 电容参数(Ciss/Crss/Coss):955pF/150pF/200pF,稳定特性减少开关噪声,提升EMI性能。

5. 宽温与功率可靠性

  • 耗散功率(Pd):1.63W,结合TSSOP-8封装热阻,支持环境温度125℃以下稳定工作;
  • 工作温度范围:-55℃+150℃,覆盖工业级(-40℃+85℃)与消费电子极端场景(户外高温/低温)。

三、封装与可靠性设计

采用TSSOP-8表面贴装封装,设计优势显著:

  • 紧凑体积:4.4mm×3.0mm×1.2mm,引脚间距1.27mm,适合TWS充电盒、超薄移动电源等小型化产品;
  • 散热优化:引脚布局兼顾信号传输与散热,可通过PCB铜箔辅助降温,降低结温;
  • 焊接可靠:兼容自动化生产,引脚抗弯折能力强,降低焊接不良率;
  • ESD防护:内置HBM 2kV等级保护电路,提升生产/使用中的抗静电能力。

四、市场优势对比

对比同规格(Vdss=20V、Id=8A)竞品,XR8814A核心优势:

  • 导通损耗低20%-40%:10mΩ@4.5V比行业平均12-15mΩ更优;
  • 驱动兼容性强:700mV阈值兼容3.3V系统,无需额外驱动芯片;
  • 宽温覆盖全:-55℃~+150℃扩展了低温/高温场景;
  • 集成度高:双N沟道集成于TSSOP-8,节省1个封装空间。

五、典型应用价值

以10000mAh移动电源快充模块为例:

  • 同步降压效率达95%以上,充电时模块表面温度低于45℃;
  • MCU直接驱动,简化电路设计,节省驱动芯片成本;
  • TSSOP-8封装比传统SOT-23-6节省30% PCB空间,提升产品轻薄度。

总结:XR8814A是低压大电流场景的高性价比选择,凭借低损耗、易驱动、宽温可靠性与紧凑封装,成为消费电子、移动设备等领域的理想方案,可有效提升系统效率、降低成本与空间占用。

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