WMSIC Electronic Components

UTC UT4421G-SO8-R UT4421G

ModelUT4421G-SO8-R
PackageSOP-8
BrandUTC
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UTC UT4421G-SO8-R
Type
UTC
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UTC
Electronic Component
UT4421G-SO8-R
Electronic Component
1
Package
SOP-8
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.22g
Electronic Component
1
Electronic Component
BM69419660
Power Dissipation(Pd)
2W
Electronic Component
Electronic Component
Electronic Component
2500
Voltage(Vdss)
60V
Capacitor(Ciss)
2.417nF

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

UT4421G-SO8-R 产品概述

一、产品简介

UT4421G-SO8-R 是友顺(UTC)生产的一款 P 沟道场效应管(P-MOSFET),封装为 SOP-8,适用于 60V 档位的高侧开关与电源管理场合。器件在 VGS = 10V 驱动下导通电阻仅 40mΩ(典型),连续漏极电流 6.2A,能够满足中低功率开关与保护应用的需求。单颗器件常见销售包装为 1 个/件,方便样品与小批量使用。

二、主要电气参数(典型/标称)

  • 漏源电压 Vdss:60V
  • 连续漏极电流 Id:6.2A
  • 导通电阻 RDS(on):40mΩ @ VGS = 10V
  • 阈值电压 VGS(th):约 2V
  • 栅极电荷 Qg:46.5nC @ 10V
  • 输入电容 Ciss:2.417nF
  • 输出电容 Coss:179pF
  • 反向传输电容 Crss:120pF
  • 功耗 Pd(封装限制):约 2W(SOP-8,取决于 PCB 散热)
  • 类型:P 沟道 MOSFET,封装:SOP-8

三、器件特点与优势

  • 低导通阻抗:40mΩ 在 10V 驱动下表现出色,有利于降低导通损耗与温升。
  • 60V 耐压:适合中低电压系统的高侧开关、反向保护与负载断开。
  • 中等栅极电荷与较大输入电容:Qg=46.5nC / Ciss=2.417nF,说明驱动时对驱动电流与驱动能力有一定要求,但有利于降低开关噪声。
  • SOP-8 封装便于 PCB 布局与批量组装,适合消费类与工业类电源板。

四、典型应用场景

  • 电池管理与电源切换(高侧开关、负载断开)
  • 逆向电流保护(配合控制逻辑实现自动切换)
  • 低至中功率 DC-DC 转换器的高侧开关
  • 仪器与消费电子的电源管理开关

五、驱动与使用建议

  • P 沟道 MOSFET 为高侧器件,充分导通时需使栅极相对源极为负(|VGS|≈10V 可得到标称 RDS(on))。在设计时注意栅极电平的产生与隔离。
  • 由于 Qg 与 Ciss 较大,建议使用能提供短时大电流的栅极驱动器或在门极串联适当电阻(10–100Ω)以控制振铃与限流。若追求快速开关,需保证驱动器瞬时电流能力可达数百 mA 至近 1A(取决于期望的上升/下降时间)。
  • Crss(120pF)会引起 Miller 效应,切换过程中注意电压平台与耗散,必要时配合 RC 阻尼或栅极驱动优化。
  • 封装功耗 Pd 约 2W,SOP-8 的散热依赖 PCB 设计。建议使用较大铜箔面积、下层散热平面与过孔来提升热阻性能,避免长时间大电流工作下过热。

六、PCB 与保护注意事项

  • 门极走线短且靠近驱动器,门极加短路电阻并放置靠近器件。
  • 在器件的漏极与源极附近放置足够的去耦电容,以抑制开关瞬态。
  • 对于感性负载,需在系统中加入 TVS、吸收电路或 RC 抑制,防止漏极过压。
  • 操作与储存注意静电防护,避免超过器件允许的 VGS、VDS 极限(详见完整数据手册)。

七、选型参考与说明

UT4421G-SO8-R 适合做 60V 档位的高侧开关与保护器件,若应用中要求更低的 RDS(on) 或更高的连续电流,应考虑更大封装或更低阻型 MOSFET;若开关频率很高,则需关注 Qg 与 Coss 对开关损耗的影响。最终设计前请参考 UTC 提供的完整数据手册与典型特性曲线,以确认温度、脉冲条件和极限参数。

如需器件封装图、引脚定义或更详细的温度—电流限制曲线,可进一步查阅 UTC 官方资料或索取样片试验验证。

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