WMSIC Electronic Components

Hottech HKTQ50N03

ModelHKTQ50N03
PackagePDFN3333-8
BrandHottech
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
Hottech HKTQ50N03
Type
HOTTECH
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HOTTECH
Electronic Component
HKTQ50N03
Electronic Component
1
Package
PDFN3333-8
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.097g
Electronic Component
1
Electronic Component
BM0264463962
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
37W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
30V
Capacitor(Ciss)
940pF

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

HKTQ50N03 产品概述

HKTQ50N03 是 Hottech(合科泰)推出的一款低压大电流 N 沟道功率 MOSFET,适用于要求高效率、快速开关和紧凑封装的电源与功率管理电路。器件采用 PDFN3333-8 小型封装,在保持优秀导通性能的同时便于 PCB 密集布局和热管理。

一、主要特点

  • N 沟道功率 MOSFET,额定漏源电压(Vdss)30V,适合 12V/24V 电源系统的开关场合。
  • 连续漏极电流(Id)高达 50A,满足大电流负载要求。
  • 低导通电阻 RDS(on) = 8.5 mΩ(Vgs = 10V),在导通状态下损耗低、发热小。
  • 总栅极电荷 Qg = 9.8 nC(Vgs = 10V),Ciss = 940 pF,Crss = 110 pF,开关能耗与驱动要求适中。
  • 最大耗散功率 Pd = 37W(器件规范值,实际散热能力依赖 PCB 设计与环境)。
  • 阈值电压 Vgs(th) ≈ 3V(典型),须采用合适的栅极驱动电压以达到低 RDS(on)。
  • 工作温度范围宽:-55℃ 至 +150℃。
  • 小型 PDFN3333-8 封装,利于高密度电路板设计。

二、主要电气参数汇总

  • 类型:N 沟道 MOSFET
  • Vdss:30V
  • Id(连续最大):50A
  • RDS(on):8.5 mΩ @ Vgs = 10V
  • Qg(总栅电荷):9.8 nC @ Vgs = 10V
  • Ciss:940 pF; Crss:110 pF
  • Pd:37W
  • Vgs(th):约 3V
  • 工作温度:-55℃ ~ +150℃
  • 封装:PDFN3333-8
  • 品牌:Hottech(合科泰)

三、适用场景

  • 开关电源(DC–DC 降压/升压转换器)中的功率开关或同步整流管。
  • 电机驱动与功率管理模块(负载开关、电子开关)。
  • 汽车电子、通信电源和工业电源的中低压大电流开关。
  • 电池管理与车载配电系统中的高效功率控制。

(注:实际是否满足特定行业认证与环境要求以产品数据手册和认证文件为准。)

四、热与散热考虑

尽管器件 Pd 标称为 37W,实际功率耗散能力强烈依赖 PCB 铜层面积、散热垫与过孔数量。建议:

  • 在器件底部和散热焊盘区域设计大面积热沉焊盘,使用多通孔(vias)连接到内层/底层散热铜箔。
  • 保持导流路径短而粗,减小电阻与电感。
  • 在高功率应用中进行热仿真或测温验证,必要时采用外部散热片或加强板层散热。

五、驱动与开关性能建议

  • 为达到标称 RDS(on),推荐栅极驱动电压为 10V;若仅用 5V 驱动,导通电阻会明显增大,导通损耗上升。
  • Qg = 9.8 nC,开关速度与驱动电流成正比。简单估算:若希望在 50 ns 内完成栅极充放电,需驱动电流约 0.20 A(Ig ≈ Qg / t)。更快切换则需更大驱动能力。
  • 建议在栅极串联小阻(例如 5–20 Ω)以抑制振铃与限流,同时根据开关速度调整以平衡开关损耗与 EMI。
  • 关注 Crss(Miller 电容),在高 dV/dt 场合可能引起栅-漏耦合导致误导通,必要时加入门极驱动回路保护或缓冲。

六、封装与 PCB 布局要点

  • PDFN3333-8 封装利于紧凑设计,但要求良好底焊与过孔布局以保证热流通。
  • 将电流回路(源、漏)走线尽量短宽,减小寄生电感并优化散热。
  • 栅极走线应避免与高 dV/dt 区域并行,以降低耦合噪声,并在靠近器件处放置门极电阻与旁路电容。
  • 在高频开关场合,放置足够的旁路电容靠近器件电源/地端,降低电源阻抗。

七、可靠性与使用建议

  • 使用时参考完整数据手册中的极限参数和热阻信息,避免长期在极限条件下工作。
  • 防止反向峰值电压和浪涌电压超出 Vdss,必要时在回路中添加 TVS 或 RC 吸收器。
  • 在并联使用多只器件时,注意匹配 RDS(on) 与热分布,并采用单独的栅驱通道或均流措施。
  • 推荐进行样机测试以确认在目标应用下的温升、效率与电磁兼容性(EMC)表现。

总结:HKTQ50N03 以其低 RDS(on)、高电流能力与小型 PDFN 封装,在要求高效率与紧凑布局的开关电源与功率控制场合具有明显优势。合理的栅极驱动与 PCB 热设计能最大化其性能并提升系统可靠性。

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