WMSIC Electronic Components

ElecSuper DMG2302UK-7-ES DMG2302UK

ModelDMG2302UK-7-ES
PackageSOT-23
BrandElec Super
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Elec Super DMG2302UK-7-ES
Type
ELECSUPER
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
DMG2302UK-7-ES
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.043g
Electronic Component
1
Electronic Component
BM0258808566
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
0.9mW
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
20V

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

DMG2302UK-7-ES 产品概述

一、产品简介

DMG2302UK-7-ES 是静芯微(ElecSuper)推出的一款小尺寸功率 N 沟道 MOSFET,采用 SOT-23 封装。器件面向便携电源、低压功率开关和通用开关场合,具有低导通电阻、低栅极电荷和较宽的工作温度范围,适合在空间受限且需兼顾开关性能与导通损耗的设计中使用。

二、主要参数

  • 类型:N 沟道 MOSFET(1 个)
  • 漏源电压 Vdss:20 V
  • 连续漏极电流 Id:3.3 A(器件资料标称值)
  • 导通电阻 RDS(on):45 mΩ @ VGS=4.5 V;62 mΩ @ VGS=2.5 V
  • 耗散功率 Pd:0.9 W(资料中标注为 0.9mW,疑为笔误,实际热耗散为约 0.9W,需按具体封装与 PCB 散热条件校核)
  • 阈值电压 VGS(th):0.7 V @ ID=250 μA
  • 栅极电荷量 Qg:3 nC @ VGS=4.5 V
  • 输入电容 Ciss:200 pF;输出电容 Coss:35 pF;反向传输电容 Crss:28 pF
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SOT-23
  • 品牌:ElecSuper(静芯微)

三、主要特性与设计亮点

  • 低 RDS(on):在 4.5 V 驱动下 45 mΩ 的低导通电阻,能有效降低传导损耗,适用于 5 V 和更高驱动电压场合;在 2.5 V 驱动下 62 mΩ,表现出良好的逻辑电平驱动能力,适配 3.3 V 系统。
  • 低栅极电荷 Qg≈3 nC:切换损耗较小,配合小型驱动器在中高速开关应用中可实现较低的驱动功耗。
  • 紧凑封装:SOT-23 小体积利于高密度 PCB 布局与便携设备应用。
  • 宽温度范围:-55 ℃ 至 +150 ℃,适应较为严苛的环境温度变化。

四、典型应用

  • 移动电源、充电器内部开关管
  • DC-DC 降压/升压转换器中的同步整流或开关管
  • 电池管理与电源路径切换电路
  • 马达驱动的低压侧开关(小功率场景)
  • 各类便携终端与物联网模块的负载开关与电源管理

五、驱动与布局建议

  • 驱动电压选择:若系统允许,优先使用 VGS≈4.5 V 以获得最低 RDS(on);在 3.3 V 系统中可直接以 2.5–3.3 V 驱动,但导通损耗相对增大,应按热设计评估。
  • 栅极驱动器件:由于 Qg 仅 3 nC,典型的 MCU IO 或小驱动芯片即可实现开关,但若开关频率较高(>200 kHz)或切换频繁,建议使用专门的栅极驱动器以降低开关损耗与 EMI。
  • 阻尼与保护:建议在栅极串联 5–47 Ω 的栅阻以抑制振铃,并在需要时并联 TVS 或 RC 吸收网络保护器件免受浪涌与反向尖峰损害。
  • PCB 布局:SOT-23 封装散热受限,建议在 PCB 大面积铜箔(尤其是漏极焊盘下方)做散热加强,并通过多层过孔引出热量。按照器件的 Pd 进行保守热设计,避免长期在最大额定电流下工作而不加散热。

六、热特性与可靠性

  • 封装热阻与 PCB 相关,SOT-23 在无额外散热的条件下热阻较大,器件耗散能力需根据板上铜量来评估。示例:在较小铜箔下器件无法持续耗散接近 0.9 W。
  • 建议实际工作电流按热仿真或实验验证,考虑环境温度与散热条件,保证结温不超过器件最大额定值以延长寿命。

七、封装与订购信息

  • 封装:SOT-23(常见三引脚小封装)
  • 品牌:ElecSuper(静芯微)
  • 型号:DMG2302UK-7-ES
  • 订购时请注意:检查芯片版本与标识,批次与封装一致性;若对耗散与电流有严格要求,建议索取详细的器件曲线(Pd vs PCB copper、RthJA)与样片进行热验证。

总结:DMG2302UK-7-ES 在小尺寸 SOT-23 封装中提供了兼顾低导通电阻与低栅极电荷的特性,适合便携电源与低压开关场合。使用时重点关注驱动电压和 PCB 散热设计,以确保器件在目标工况下的热稳定性与可靠性。

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