WMSIC Electronic Components

Infineon IPA95R450P7

ModelIPA95R450P7
PackageTO-220FP-3
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

19 specifications

Core information

Product name
Infineon IPA95R450P7
Type
INFINEON
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
IPA95R450P7
Electronic Component
1
Package
TO-220FP-3
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
1g
Electronic Component
1
Electronic Component
BM0229960368
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
30W
Electronic Component
Electronic Component
Electronic Component
500
Voltage(Vdss)
950V
Capacitor(Ciss)
1.053nF

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

IPA95R450P7 产品概述

一、产品简介

IPA95R450P7 是英飞凌 (Infineon) 出品的一款高压 N 沟增强型功率 MOSFET,专为需要高耐压与中等功率处理能力的开关应用设计。该器件额定漏源电压 Vdss = 950V,适合 600V~1kV 级别的离线电源、升压转换器和功率因数校正(PFC)等场合。封装为 TO-220FP-3(全绝缘),方便在需隔离的系统中安装和散热。

二、主要电气参数

  • 漏源电压 (Vdss):950 V
  • 连续漏极电流 (Id):14 A(器件额定值,实际应用须考虑封装与温升)
  • 导通电阻 (RDS(on)):450 mΩ @ Vgs = 10 V,测试电流 7.2 A
  • 最大耗散功率 (Pd):30 W(在规定散热条件下)
  • 栅极阈值电压 (Vgs(th)):约 3 V(典型阈值)
  • 栅极总电荷量 (Qg):35 nC @ Vgs = 10 V(开关期间的驱动能量参考)
  • 输入电容 (Ciss):约 1.053 nF @ 400 V
  • 反向传输电容 (Crss, Miller):约 273 pF @ 400 V
  • 工作温度范围:-55 ℃ ~ +150 ℃

这些参数表明器件在 10 V 栅压下导通性能可接受,但 RDS(on) 在高压 MOSFET 中偏大,适用于中低频率或作为高压级的开关元件,而非追求极低导通损耗的场合。

三、封装与热管理

TO-220FP-3(全封闭绝缘型)便于安装在散热片上并提供基本的电气绝缘,适合需要简便机械固定与隔离的设计。额定耗散功率 30 W 意味着在持续大电流或高占空比工作时必须良好散热;建议配合适当尺寸的散热片或强制风冷,并在 PCB 与布局上考虑热阻与散热路径。请在设计时参考完整数据手册的温度与热阻曲线进行计算与器件退载设计。

四、开关闭合与驱动特性

IPA95R450P7 的栅极总电荷 Qg=35 nC(10 V)属于中等水平,驱动时需要具备较强瞬态电流能力的驱动器以保证快速切换,否则会增加开关损耗与毛刺。Crss(Miller)为 273 pF,提示在开关转换过程中会出现明显的米勒效应,尤其是在高 dv/dt 场景下需要控制栅极驱动速率。RDS(on) 标称于 Vgs=10 V,建议在设计中以 10 V 左右的栅压驱动为准,并避免长时间处于阈值附近以免发热和非线性行为。

五、典型应用场景

  • 离线开关电源(SMPS)高压开关管(如反激、半桥或全桥的高压端)
  • 功率因数校正(PFC)升压开关,适于 600~950V 的总线电压条件
  • 中小功率逆变器和电机驱动(以高压侧开关或辅助开关为主)
  • 工业电源、照明驱动、充电设备中要求高耐压的开关元件

由于 RDS(on) 相对较高,器件更适合中低开关频率或作为高电压级的开关器件,而在追求极低导通损耗或高频率的设计中可考虑并联 MOSFET 或采用更低 RDS(on) 的替代产品。

六、设计注意事项

  • 栅极驱动:使用能提供足够瞬态电流的驱动器,并在栅极串联适当阻值以抑制振铃。
  • 保护电路:建议在栅极并联 TVS 或齿轮二极管、在漏极侧采用 RC/RCD 吸收电路以抑制过压尖峰并保护器件。
  • 热设计:根据应用工况计算平均功耗并选择合适散热片或风冷方式,必要时考虑并联或降额使用。
  • 布局与寄生:减少回路电感,优化主回路与驱动回路的布局,减小寄生电感带来的过压与 EMI。
  • 栅源电压保护:避免超过器件允许的最大 Vgs(请参照完整数据手册),防止栅氧击穿。

七、典型电路建议

  • 作为 PFC 升压开关:配合快速恢复二极管与合理的闭环电流控制,可在连续导通或临界导通模式下工作。
  • 作为反激/半桥主开关:配合 RCD 吸收与良好栅极抑振设计以应对变压器泄漏感抗引起的尖峰。
  • 并联使用:若需更低导通损耗,可并联多个相同器件,但需注意电流分配与热平衡。

八、总结

IPA95R450P7 是一款面向高耐压应用、封装便于安装且具备较高耐压裕度的 N 沟 MOSFET。其 950 V 的耐压能力和全绝缘 TO-220FP-3 封装,使其在离线电源与工业高压转换器中具有明显优势。设计时需重视栅极驱动能力、热管理和过压保护,以发挥器件最佳性能并确保系统可靠性。有关更详细的极限参数、动态特性以及应用参考电路,请参阅英飞凌官方数据手册。

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