WMSIC Electronic Components

Infineon IRFS7730TRLPBF

ModelIRFS7730TRLPBF
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 23+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Infineon IRFS7730TRLPBF
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
IRFS7730TRLPBF
Electronic Component
1
Package
D2PAK
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
1.85g
Electronic Component
1
Electronic Component
BM0058411255
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
375W
Electronic Component
Electronic Component
Electronic Component
800
Voltage(Vdss)
75V

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

IRFS7730TRLPBF 产品概述

IRFS7730TRLPBF 是 Infineon(英飞凌)推出的一款大电流、高性能力的 N 沟道功率 MOSFET,采用 D2PAK(TO-263AB)封装,适用于高功率开关应用与电源管理场景。该器件在 75V 额定漏源电压下具有极低的导通电阻和很高的额定漏极电流,适合在 48V 总线以及中低压电源转换与马达驱动领域使用。以下从器件特性、性能与应用建议等方面给出简明而实用的说明。

一、主要规格要点

  • 器件型号:IRFS7730TRLPBF
  • 制造商:Infineon(英飞凌)
  • 类型:N 沟道功率 MOSFET
  • 封装:TO-263AB (D2PAK)
  • 数量:1 颗
  • 漏源电压 Vdss:75 V
  • 连续漏极电流 Id:246 A(说明:此数值为器件规格数据,实际可通过散热条件和封装限制调整)
  • 导通电阻 RDS(on):2.2 mΩ @ Vgs=10 V, Id=100 A
  • 最大耗散功率 Pd:375 W(典型值需参考封装与 PCB 散热条件)
  • 阈值电压 Vgs(th):2.1 V(典型)
  • 总栅极电荷 Qg:407 nC(典型)
  • 输入电容 Ciss:13.66 nF
  • 反向传输电容 Crss:690 pF
  • 工作结温范围:-55 ℃ ~ +175 ℃

二、性能解读与设计要点

  • 低导通电阻:2.2 mΩ 的典型 RDS(on) 在 10V 驱动电压下能显著降低导通损耗,适合大电流导通场合(如同步整流、输出级开关)。
  • 栅极驱动需求:Qg=407 nC 属于相对较大的栅极电荷,意味着驱动栅极需要较大的电荷与更强的驱动能力。推荐采用专用门极驱动芯片或提供足够电流的驱动器,在开关频率提高时应关注驱动损耗与热量管理。典型驱动电压为 10–12 V;在较低驱动电压下 RDS(on) 将显著上升。
  • 开关损耗与寄生电容:Ciss=13.66 nF、Crss=690 pF,结合大 Qg,会导致在高频切换时开关损耗增加,适合中低频开关或需要优秀驱动与能量回收的场合。Crss 较大会影响 Miller 效应,快速 dv/dt 时需注意误触发。
  • 热设计:额定 Pd=375 W 是在理想散热条件下的数据。实际使用时必须结合 D2PAK 的 PCB 散热能力、铜箔面积与散热片来设计。器件的连续电流能力(246 A)在很大程度上取决于热阻与环境温度。

三、典型应用场景

  • 48V 车载电子与电源(DC-DC 转换、逆变前端)
  • 服务器与电信电源转换器(同步整流、高电流开关)
  • 电机驱动与伺服驱动(中低频换向)
  • 大功率开关电源、UPS 与工业电源模块

四、PCB 布局与散热建议

  • 提高散热能力:在 D2PAK 底部和散热引脚区域使用大面积敷铜,并通过多排过孔(thermal vias)将热量传导至底层散热层或散热片。
  • 降低寄生电感:将电流回路(电源滤波电容、MOSFET 的 Drain-Source 回路)布局紧凑,缩小环路面积,减少开关振铃与 EMI。
  • 栅极布线:栅极走线尽量短且使用阻尼电阻(典型 2–10 Ω,视开关速度与振铃情况调整),在驱动器与 MOSFET 之间放置一小电阻可抑制振铃并保护驱动器。
  • 去耦放置:大电流去耦电容应尽量靠近 MOSFET 的电源引脚放置,以降低上升瞬态电压尖峰。

五、可靠性与注意事项

  • 阈值电压约 2.1 V,说明不是低压逻辑电平完全导通型器件,需 10 V 驱动以获得标称低 RDS(on)。
  • 在感性负载或存在过电压风险的场合,应在电路中增加 TVS、RC 吸收器或阻尼网络来限制瞬态过压,保护 MOSFET 的击穿风险。
  • 评估 SOA 与热循环:在高应力开关情况下验证安全工作区(SOA)并进行热仿真或实测,避免长期运行在极限工况下导致寿命降低。

六、综合评价

IRFS7730TRLPBF 是一款面向高电流、75V 等级应用的低导通电阻 MOSFET。其优点在于极低的 RDS(on) 和高额定电流,适合需要低导通损耗的大电流场合;不足之处在于较大的栅极电荷与寄生电容,在高频切换时对驱动器和散热提出了更高要求。合理的驱动设计、良好的 PCB 散热和抑制瞬态过压的保护电路,能充分发挥其在电源与电机驱动等应用中的性能。

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