WMSIC Electronic Components

Infineon IRF1404STRLPBF

ModelIRF1404STRLPBF
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 IRF1404STRLPBF
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
IRF1404STRLPBF
Electronic Component
1
Package
D2PAK
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
1.666g
Electronic Component
1
Electronic Component
BM0264814190
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
200W
Electronic Component
Electronic Component
Electronic Component
800
Voltage(Vdss)
40V

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

IRF1404STRLPBF(Infineon)产品概述

一、概述与主要参数

IRF1404STRLPBF 是英飞凌(Infineon)的一款高电流、低导通电阻的 N 沟增强型功率 MOSFET,采用 D2PAK 封装,适合中低压大电流开关与功率分配应用。主要参数如下:

  • 类型:N 沟 MOSFET
  • 漏源电压 Vdss:40 V
  • 连续漏极电流 Id:162 A
  • 导通电阻 RDS(on):4 mΩ @ Vgs = 10 V, 95 A
  • 总耗散功率 Pd:200 W(需良好散热)
  • 阈值电压 Vgs(th):2 V(典型)
  • 栅极电荷 Qg:200 nC @ 10 V
  • 输入电容 Ciss:7.36 nF
  • 反向传输电容 Crss:240 pF @ 32 V
  • 工作温度范围:-55 ℃ ~ +175 ℃
  • 封装:D2PAK(SMD)
  • 品牌:Infineon

二、产品特点(亮点)

  • 低 RDS(on)(4 mΩ)在高电流场合能有效降低导通损耗,适用于大电流传输或同步整流场景。
  • 40 V 电压等级适合 12 V、24 V 工业/车载(需注意瞬态保护)以及多数 DC-DC 电源应用。
  • D2PAK 表面贴装封装,便于自动化装配并提供较好的散热路径(封装底板与 PCB 铜箔良好连接时热性能优异)。
  • 较大的栅极电荷(200 nC)与较高的 Ciss 值,表明器件在高频快速开关时对栅极驱动能量和驱动电流有较高要求。

三、典型应用场景

  • 同步整流 DC-DC 降压转换器(中高电流)
  • 服务器、电源模块及电源分配开关
  • 电机驱动(短期大电流输出)与功率桥臂(在电压范围内)
  • 汽车电子(电子负载开关、车载电源管理,需做好瞬态抑制)
  • UPS、功率继电器替代与高效开关场合

四、设计与驱动注意事项

  • 栅极驱动要求:Qg = 200 nC 表明若需快速切换,需要较大瞬时驱动电流。例如若希望在 10 ns 内完成栅极充电,峰值驱动电流约为 Qg / tr ≈ 200 nC / 10 ns = 20 A。若采用较慢的开关(如 100 ns),峰值则降为 2 A。设计时应平衡开关速度、开关损耗与 EMI。
  • 栅极能量与驱动功耗:单次充放电能量约 E = 0.5 * Qg * Vgs ≈ 0.5 * 200 nC * 10 V = 1 μJ。若工作频率为 100 kHz,则栅极驱动损耗约 0.1 W。
  • 导通损耗示例:RDS(on) = 4 mΩ 时,若工作电流为 50 A,压降为 0.2 V,导通损耗约 I^2·R = 10 W。实际 RDS(on) 会随结温升高而增加,设计需考虑热升高带来的损耗上升。
  • 建议在栅极串联合适阻值(1–10 Ω)以抑制振铃,并在必要时加入 TVS 或 RC 吸收以保护器件免受瞬态过压。短且足够粗的栅源回路能减少寄生感抗导致的额外损耗与振铃。

五、热管理与封装(D2PAK)

  • D2PAK 提供良好的携带和焊接特性,同时底部大铜面利于贴片焊接到 PCB 大面积散热层。要实现标称 Pd(200 W)需在 PCB 上提供足够的散热铜箔、热过孔和外部散热器。
  • 布局建议:将电流路径走短、宽的铜线并使用多孔过孔连接散热层;把接地和电源返流路径合理规划以减小感抗和局部热点;栅极走线尽量短并远离开关电流路径。
  • 高温工作能力(-55 ~ +175 ℃)为宽温度场合提供可靠性,但长期高温会加速老化和增加 RDS(on),应避免长期在高结温下运行。

六、并联与选型建议

  • 并联使用时要注意器件的 RDS(on) 匹配和热均衡,建议在并联 MOSFET 之间尽量保证相同的 PCB 条件与焊接热阻,并在必要时使用源/温度平衡措施。
  • 若应用在汽车负载或存在高瞬态电压的场合,需在系统层面增加 TVS、输入滤波与合适的熔断/限流保护。
  • 设计驱动时,若追求高效率与高频率,考虑 MOSFET 的总开关损耗(RDS(on) 与切换损耗)之间的折中;对于高功率、低频应用,IRF1404STRLPBF 的低导通电阻优势更明显。

七、总结

IRF1404STRLPBF 是一颗针对中低压大电流场合优化的 N 沟 MOSFET,凭借 40 V 耐压、极低的 RDS(on)(4 mΩ)和 D2PAK 封装的散热优势,适合用于高电流功率开关与分配场合。设计时需重视其较大的栅极电荷和较高的输入电容对驱动器的要求,以及热管理与瞬态保护措施,以确保器件在高效且可靠的工作点下运行。

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