WMSIC Electronic Components

TECH PUBLIC PMV48XP

ModelPMV48XP
PackageSOT-23
BrandTECH PUBLIC
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
TECH PUBLIC PMV48XP
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
PMV48XP
Electronic Component
1
Package
SOT-23
Electronic Component
1 P
Electronic Component
MOSFET
Electronic Component
0.031g
Electronic Component
1
Electronic Component
BM0227340293
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
15W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
20V
Capacitor(Ciss)
740pF

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

PMV48XP 产品概述

PMV48XP 是 TECH PUBLIC(台舟电子)推出的一款小封装、低压差的场效应晶体管(MOSFET),适用于便携式与板载电源管理场合。该器件在 SOT-23 封装下兼顾了低导通损耗与较低的栅极驱动需求,适合 12V 及低于 20V 的开关与功率分配应用。

一、主要参数一览

  • 漏源电压 Vdss:20 V
  • 连续漏极电流 Id:4.1 A
  • 导通电阻 RDS(on):75 mΩ @ Vgs = 2.5 V
  • 阈值电压 Vgs(th):1.0 V @ Id = 250 µA
  • 栅极电荷 Qg:7.8 nC @ Vgs = 4.5 V
  • 输入电容 Ciss:740 pF @ 4 V
  • 反向传输电容 Crss:190 pF @ 4 V
  • 耗散功率 Pd:15 W(器件极限,实际使用受封装散热约束)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SOT-23
  • 品牌:TECH PUBLIC(台舟电子)

二、器件特点与优势

  • 低门限且逻辑电平驱动:Vgs(th) ≈ 1 V,2.5 V 驱动下 RDS(on) = 75 mΩ,适用于直接由微控制器或低压驱动电路驱动的开关场景。
  • 较低的栅极电荷:Qg = 7.8 nC,有利于降低驱动能耗和提高开关速度,适合中高频率开关应用。
  • 紧凑封装:SOT-23 适合空间受限的应用板面,便于批量化装配。
  • 宽温度范围:-55 ℃ 到 +150 ℃,适应工业级与苛刻环境。

三、典型应用场景

  • 便携式电源开关与负载开关(电池供电设备)
  • DC-DC 降压转换器与同步整流单元(在 20V 以下系统)
  • 电源分配与功率路径切换
  • 电机驱动低端开关、背光与指示灯驱动等低电压功率处理模块

四、驱动与使用建议

  • 在实际板级使用时,尽量采用至少 2.5 V 的门极电压以获得标称 RDS(on)。若驱动电压可达 4.5~10 V,可进一步降低导通损耗(但请参照完整数据手册)。
  • 由于 Ciss 与 Crss 值较大(分别为 740 pF 与 190 pF @4 V),在快速开关时需注意 Miller 效应造成的电压耽搁,合理选用驱动器或在门极串联阻值以控制振铃与过冲。
  • 对于高频开关场合,Qg 与 Ciss 将直接影响驱动损耗,建议评估驱动功率与开关频率匹配性。

五、热管理与封装注意

  • 尽管额定耗散功率为 15 W,但 SOT-23 封装的实际散热能力高度依赖 PCB 散热设计。建议在功率较大或连续导通情况下采用加大铜箔面积、热过孔和短门极/漏极走线路径以降低结温。
  • 连续漏极电流 4.1 A 为器件极限值,长期或大电流工作需考虑热饱和与封装限制,应以实际 PCB 温升和结温为准选型。

六、典型电路建议

  • 作为高侧应用时需配合适当的驱动电路;作低侧开关或同步整流件时,可直接与逻辑电平驱动器配合。
  • 对于电感性负载,建议在器件的二极管恢复与能量回收路径上做好保护与吸收(例如并联 TVS 或 RC 吸收),以降低瞬态应力。

七、购买与资料

如需具体引脚定义、详细的 I-V 曲线、开关特性与封装尺寸,请索取 TECH PUBLIC(台舟电子)官方数据手册。选型时请参照完整规范以满足可靠性和安全裕量要求。

总结:PMV48XP 在 SOT-23 小封装下提供了良好的低压导通性能与较低的栅极驱动要求,适合电源管理与小功率开关应用。在实际设计中,应重视 PCB 散热设计与驱动匹配,以发挥器件最佳性能。

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