WMSIC Electronic Components

Infineon IRFP7537PBF

ModelIRFP7537PBF
PackageTO-247
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

20 specifications

Core information

Product name
Infineon IRFP7537PBF
Type
INFINEON
Unit
Electronic Component
Minimum package
400 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
IRFP7537PBF
Electronic Component
1
Package
TO-247
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
5.58g
Electronic Component
1
Electronic Component
BM0230041134
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
230W
Electronic Component
Electronic Component
Electronic Component
400
Voltage(Vdss)
60V

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

IRFP7537PBF 产品概述

IRFP7537PBF 是英飞凌(Infineon)推出的一款高电流、低导通电阻的 N 沟增强型功率 MOSFET,适合用于中高功率开关与传导场合,封装为 TO-247,设计上兼顾低损耗与大电流能力。以下内容基于提供的器件参数,对该器件的特性、适用场景与设计注意事项做集中说明,便于在电源、逆变与电机驱动等系统中快速评估与应用。

一、关键参数概览

  • 器件类型:N 沟场效应管(MOSFET)
  • 品牌:Infineon(英飞凌)
  • 数量:1 个
  • 封装:TO-247
  • 漏源电压 Vdss:60 V
  • 连续漏极电流 Id:172 A
  • 导通电阻 RDS(on):2.75 mΩ @ Vgs = 10 V, Id = 100 A
  • 耗散功率 Pd:230 W
  • 阈值电压 Vgs(th):2.1 V
  • 总栅极电荷 Qg:210 nC @ 10 V
  • 输入电容 Ciss:7.02 nF
  • 反向传输电容 Crss:395 pF
  • 工作温度范围:-55 ℃ ~ +175 ℃

二、主要特点与优势

  • 低导通损耗:2.75 mΩ 的 RDS(on) 在 100 A 条件下可以显著降低导通损耗,适合大电流直流导通场景(例如大功率输出开关或主开关器件)。
  • 高电流能力:器件标称连续漏极电流可达 172 A(注意需结合温升与散热),适合高电流轨/母线应用。
  • 充足的功率耗散能力:TO-247 包装与 230 W 标称功耗结合适合通过有效散热进行高功率工作。
  • 开关特性可控:Qg = 210 nC,虽然比小功率 MOSFET 高,但对中高功率系统允许通过合适驱动器在可接受的开关速度与损耗间取舍。

三、典型应用场景

  • 服务器与通信电源的主功率开关与同步整流
  • 中小功率逆变器、太阳能逆变器的输出级或输入级功率开关
  • 电机驱动(IGBT 替代或并联)中的相电流开关
  • UPS 不间断电源、DC-DC 升降压变换器的大电流级
  • 电池管理系统(BMS)中的接入/放电开关

四、驱动与开关性能考量

  • 驱动电压:标注 RDS(on) 在 Vgs = 10 V 时测得,设计时应采用接近 10 V 的栅极驱动电压以达到最低导通电阻;Vgs(th) = 2.1 V 仅为导通门槛,不应作为正常工作驱动电压。
  • 门极电荷与驱动能力:Qg = 210 nC 表明该器件在开/关瞬间需要较大电荷输送,驱动器要具备足够电流能力以在所需开关时间内快速充放电门极,否则会增加开关损耗与过渡发热。建议选用专用高速驱动 IC 或驱动器,必要时并联驱动或使用驱动变压器。
  • 米勒效应:Crss = 395 pF(米勒电容)较大,转换过程中会延长米勒平台,注意在 Vds 变化阶段控制 dV/dt 与避免误触发。适当串联栅极电阻(如 5~20 Ω,按实际系统与 EMI 要求调整)以控制振荡与限流。
  • 开关与传导损耗估算:
    • 传导损耗 Pcond ≈ I^2 × RDS(on)。例如在 100 A 时约为 100^2 × 0.00275 = 27.5 W(不计温度上升导致的 RDS(on) 增加)。
    • 开关损耗与 Qg、Vds、开关频率及驱动速度相关,应结合仿真或计算评估。

五、散热与封装建议

  • TO-247 封装利于通过螺栓/绝缘垫片直接安装到散热器上,必须提供低热阻散热路径以利用器件 230 W 的耗散能力。实际允许的持续电流受散热系统限制。
  • 推荐使用合适的绝缘垫、导热硅脂或导热垫片,并保证螺栓力矩均匀,避免局部热点。
  • 在并联多只器件时考虑电流均流措施,例如串联小阻值源阻或匹配电阻,以减小因 RDS(on) 容差引起的不均流。

六、设计注意事项与参考建议

  • PCB 布局:尽量缩短漏-源与栅-源回路的回流路径,减小寄生电感,门极到源的回路要做本地去耦(低 ESR 电容)。
  • 保护措施:在高压开关点加 RC 吸收、TVS 或钳位器件以限制浪涌与过压;在感性负载侧考虑续流二极管或同步整流措施。
  • 热与老化考量:在高温下 RDS(on) 会上升,长期高温运行会影响可靠性,必要时设计热坎限或降额运行策略。
  • 并联与替代方案:若需要更低等效 RDS(on) 或更高电流,可采用多只并联,并采用匹配布局与源电阻;如需更低 Qg 可在不同型号之间比较以优化开关损耗。

七、总结

IRFP7537PBF 以其 60 V 电压等级、低至 2.75 mΩ 的导通电阻与大电流能力,在中高功率开关场景中具有明显优势。设计时需平衡导通损耗与开关损耗:使用 10 V 驱动以获得最低 RDS(on),并配备足够驱动能力以应对 210 nC 的门极电荷;同时提供有效散热与过压/过流保护以保证长期稳定运行。针对具体应用建议在原型阶段完成热仿真与开关损耗评估,并依据系统频率与 EMI 要求调整驱动与缓冲元件。

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