WMSIC Electronic Components

Infineon BSC025N03MSG

ModelBSC025N03MSG
PackageTDSON-8
BrandInfineon
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 22+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Infineon BSC025N03MSG
Type
INFINEON
Minimum package
5000

Technical parameters

Electronic Component
INFINEON
Electronic Component
BSC025N03MSG
Electronic Component
1
Package
TDSON-8
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.32g
Electronic Component
1
Electronic Component
BM0230658801
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
83W
Gate Voltage(Vgs)
±20V
Electronic Component
5000
Voltage(Vdss)
30V
Capacitor(Ciss)
7.6nF

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

BSC025N03MSG — 产品概述

一、产品简介

BSC025N03MSG 是英飞凌(Infineon)推出的一款低导通电阻、30V 额定的 N 沟增强型功率 MOSFET,采用 TDSON‑8 封装。其设计针对高电流、低电压电源和功率转换场景,兼顾低导通损耗与良好开关性能,适合同步整流、开关电源、负载开关和电机驱动等应用。

二、主要电气与机械参数

  • 漏源电压 Vdss:30 V
  • 连续漏极电流 Id:100 A
  • 导通电阻 RDS(on):3 mΩ @ VGS = 4.5 V
  • 阈值电压 Vgs(th):2 V @ ID = 250 µA
  • 总栅极电荷 Qg:98 nC @ VGS = 10 V
  • 输入电容 Ciss:7.6 nF
  • 输出电容 Coss:2.1 nF
  • 反向传输电容 Crss:120 pF
  • 功耗 Pd:83 W(参考条件,请以数据手册热性能为准)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:TDSON‑8(SMD)

三、特性亮点与性能解读

  • 低 RDS(on):3 mΩ 在 4.5 V 门极驱动下即可达到低导通电阻,适合以较低驱动电压运行的系统(例如 5 V 或 4.5 V 驱动),可大幅减少导通损耗,提升效率。
  • 高电流能力:100 A 的连续电流能力结合低 RDS(on),在高电流、低压差的场景(如同步整流)表现优异。
  • 开关与电容特性:较大的 Ciss(7.6 nF)和 Qg(98 nC@10 V)表明在高速开关时需要较强的栅驱能量;Crss = 120 pF 表现出典型的 Miller 容量,影响开关过渡过程和 dv/dt 抑制。
  • 宽温度范围与高功耗等级:适用于工业级环境和高温工作点,但具体结温与散热设计需参照数据手册的热阻参数与封装说明。

四、典型应用场景

  • 同步开关整流(synchronous rectification)与降压(buck)转换器
  • 点对点电源与服务器电源管理(高电流、低压轨)
  • 负载开关与逆变/电机驱动前级(需配合驱动器优化 di/dt)
  • 汽车电子低压子系统(需遵循汽车级认证与仿真)

五、设计与布局建议

  • 栅极驱动:由于 Qg 较大(98 nC@10 V),在高频或大电流切换下,建议选用峰值驱动能力强的栅极驱动器,并在栅极串联合适的门阻(典型 2–20 Ω,根据 EMI 与开关损耗权衡)以控制 dv/dt 和环路振铃。
  • PCB 布局:短且粗的功率回流路径、充分的散热铜箔和焊盘,减小寄生电感。为降低三端电压降和热阻,建议在 TDSON‑8 的主散热焊盘处使用实心的底层铜或多层过孔热盲孔散热设计。
  • 去耦与输入电容:在 MOSFET 近端布置低 ESR 的旁路电容,减小开关瞬态电压尖峰与 EMI。
  • 热管理:在高电流工作情况下,预计较大的 I^2R 损耗(例如 100 A 时的理论导通损耗约 30 W,实际取决于结温与 RDS(on) 温升),必须评估结到环境的热阻并设计合适散热措施(铜箔、散热片或导热胶等)。具体热阻(Rth)请参照英飞凌数据手册。

六、选型与可靠性注意事项

  • 驱动电压选择:若系统仅有 4.5–5 V 的逻辑驱动,BSC025N03MSG 在 4.5 V 下已标称 3 mΩ,可直接使用;若有 10–12 V 专用驱动,可进一步保证更低的导通损耗与更快的开关性能,但相应 Qg 变化与驱动损耗需评估。
  • 高频开关权衡:大 Qg 与较大 Ciss 会增加驱动能量消耗并放大开关损耗,设计时需要在开关频率、效率和驱动功耗之间折中。
  • ESD 与工艺:为保护器件,遵循 ESD 防护规范与封装的回流焊工艺曲线;TDSON‑8 在焊接和回流时应参考制造商给出的流程。
  • 仪表验证:在系统级验证中应测试热升、开关损耗、导通损耗、开关过冲与 EMI 性能,确保在实际负载和环境下满足可靠性指标。

总结:BSC025N03MSG 在 30 V/100 A 这个功率分区内以极低的 RDS(on) 与良好的工业温度等级呈现出很高的系统效率潜力。适合需要低导通损耗、高电流能力的电源与功率电子应用,但在高速开关场合需特别关注栅极驱动设计与热管理。欲获得完整电气模型、热参数与封装详细信息,请参考英飞凌官方数据手册与应用笔记。

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