WMSIC Electronic Components

Infineon IRF1405STRLPBF

ModelIRF1405STRLPBF
PackageD2PAK
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Infineon IRF1405STRLPBF
Type
INFINEON
Unit
Electronic Component
Minimum package
800 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
IRF1405STRLPBF
Electronic Component
1
Package
D2PAK
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
1.666g
Electronic Component
1
Electronic Component
BM0264814191
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
200W
Electronic Component
Electronic Component
Electronic Component
800
Voltage(Vdss)
55V

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

IRF1405STRLPBF 产品概述

一、产品简介

IRF1405STRLPBF 是一款大电流、低导通阻抗的 N 沟增强型功率 MOSFET,采用 D2PAK 表面贴装封装,由原 International Rectifier 系列产品,被 Infineon 承接与生产。器件适用于需要低导通损耗与高瞬态电流能力的开关及线性功率应用。

二、主要参数与含义

  • 型号:IRF1405STRLPBF(D2PAK)
  • 极性:N 沟道(单个)
  • 漏源电压 Vdss:55 V
  • 连续漏极电流 Id:131 A(器件最大额定,需结合散热条件)
  • 导通电阻 RDS(on):5.3 mΩ @ Vgs=10 V(在 101 A 条件下测试)
  • 耗散功率 Pd:200 W(封装极限,需良好散热)
  • 阈值电压 Vgs(th):4 V(门限较高,不属于典型逻辑电平驱动)
  • 总栅电荷 Qg:260 nC @ 10 V(开关能量与驱动能力关键参数)
  • 输入电容 Ciss:5.48 nF @ 25 V(影响开关速度与 dv/dt 敏感性)
  • 工作结温范围:-55 ℃ ~ +175 ℃(Tj)

三、关键电气特性与设计要点

  • 低 RDS(on)(5.3 mΩ)在大电流时能显著降低导通损耗,但在实际系统中导通损耗仍随 I^2R 增长。例如在 100 A 持续电流下,理论导通损耗约为 100^2×0.0053 ≈ 53 W,因此必须配合有效散热。
  • Vgs(th) ≈ 4 V 意味着最低门限相对偏高,应采用 10 V 门极驱动以获得数据表标注的最低 RDS(on)。若使用 5 V 驱动,RDS(on) 会明显增大,应查阅完整特性曲线评估。
  • 高 Qg(260 nC)要求门极驱动器具备较大瞬时输出电流以实现快速切换;驱动器选型要兼顾功率与开关速度。

四、热管理与封装注意

  • D2PAK 为功率级 SMD 封装,适合贴片工艺与大电流应用。Pd=200 W 为理想散热条件下的极限值,实际使用时需计算结-环境热阻并保证足够散热路径(PCB铜箔、散热片或外接散热器)。
  • 在高电流或高占空比场合,应采用大量铜箔、通过热盲孔连接底层散热层,并考虑焊盘与散热片的机械固定。

五、驱动与开关损耗估算

  • 若目标开关时间约 100 ns,所需驱动电流约 I = Qg / t ≈ 260 nC / 100 ns = 2.6 A 峰值;若允许 1 µs 开关时间,峰值约 0.26 A。
  • 开关损耗受 dv/dt、di/dt、负载电感及寄生参数影响,建议在设计中以仿真或实际测量校准,并使用合适的缓冲电阻与阻尼以抑制振铃与 EMI。

六、典型应用场景

  • 开关电源主开关(中低压高功率)
  • 电机驱动与逆变器(需配合并联或并行器件以分摊电流时注意均流)
  • 汽车和工业电源系统(在满足电压与热设计条件下)
  • 大功率开关、配电保护与负载开关应用

七、PCB 布局与可靠性建议

  • 门极回路和高电流回路要最短、最粗,减少寄生电感与电阻。
  • 在源引脚附近布置旁路电容以降低 dv/dt 影响;在漏-源回路使用低 ESL 电容做吸收。
  • 考虑温度漂移对 RDS(on) 的影响,保证在最高工作温度下仍满足系统损耗预算。
  • 大电流应用建议进行热循环与应力试验验证可靠性。

八、采购与替代参考

  • IRF1405 系列由多家厂商生产,选择时注意封装、测试条件(RDS(on) 测试电流与 Vgs)与合规认证。替代器件需在 Vdss、RDS(on)、Qg 与封装热特性上匹配或更优。购买时留意原厂或授权分销商以保障一致性与质量。

如需进一步计算导通/开关损耗、选择具体门极驱动器或 PCB 散热方案,可提供工作电流、开关频率与开关边沿目标,我可基于这些参数给出更详细的设计建议。

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