WMSIC Electronic Components

ON FQD16N25CTM

ModelFQD16N25CTM
PackageDPAK
BrandON
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
ON FQD16N25CTM
Type
ON
Unit
Electronic Component
Minimum package
2500

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ON
Electronic Component
FQD16N25CTM
Electronic Component
1
Package
DPAK
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.476g
Electronic Component
1
Electronic Component
BM0228786105
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
160W
Electronic Component
2500
Voltage(Vdss)
250V
Capacitor(Ciss)
1.08nF

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

FQD16N25CTM 产品概述

一、产品简介

FQD16N25CTM 是安森美(ON Semiconductor)出品的一款高压 N 沟道功率 MOSFET,单片 DPAK 封装,额定 Vdss 250V,连续漏极电流 16A,功率耗散 160W(器件热阻与PCB散热条件相关)。该器件适用于高压开关、电源初级开关、功率因数校正(PFC)和中小功率逆变器等应用。

二、主要参数与电气特性

  • 漏–源电压(Vdss):250V
  • 连续漏极电流(Id):16A(受散热条件限制)
  • 最大耗散功率(Pd):160W(典型于良好散热条件下)
  • 导通电阻(RDS(on)):270mΩ @ Vgs=10V
  • 阈值电压(Vgs(th)):4V @ 250µA(说明并非典型逻辑电平器件,推荐 10V 驱动以达到标称 RDS(on))
  • 总栅极电荷(Qg):53.5nC @ 10V(开关时需较大驱动电流)
  • 输入电容(Ciss):1.08nF;输出电容(Coss):220pF;反向传输电容(Crss):89pF(Miller 效应明显)
  • 工作温度范围:-55℃ ~ +150℃
  • 封装:DPAK(表面贴装)

三、热管理与封装注意事项

DPAK 封装对 PCB 散热依赖较大。尽管器件 Pd 标称 160W,但实际可用耗散受焊盘、铜箔面积和散热路径影响:

  • 建议在器件下方和底层布置大面积的铜箔及多颗焊盘热通孔(thermal vias)引导热量到内层或底层散热层。
  • 在计算连续电流能力时应基于 PCB 温升与允许结温(≤150℃)进行热仿真或经验折算。
  • DPAK 在回流焊和热循环下应注意可靠焊接工艺。

四、驱动与开关性能建议

  • 由于 Qg=53.5nC,推荐使用能提供足够峰值电流的栅极驱动器,快速开关时避免过大搅扰与开关损耗。举例:希望在100ns内完成充电,则驱动峰值电流 ≈0.54A;若追求更快切换需更大驱动电流。
  • 推荐栅极驱动电压为 10V 以获得标称 RDS(on),切勿低压直接作为功率开关驱动(Vgs(th)≈4V,偏高)。
  • 由于 Crss(89pF)和 Coss(220pF)会产生明显 Miller 效应,快速开关时可能出现电压/电流峰值,建议在感性负载或高 dv/dt 场景加入 RC 或 RCD 钳位电路,或使用合适的斜率控制(栅极电阻)平衡开关损耗与 EMI。
  • 对感性负载切换应慎重评估器件的抗冲击与钳位策略(文档未提供雪崩能量参数时应避免无钳位的硬切换)。

五、典型应用场景

  • 离线开关电源(初级开关)与 PFC 前端(开关频率与能耗匹配时)
  • 中小功率逆变器与电机驱动(须结合驱动与散热设计)
  • DC-DC 转换器高压侧开关、开关管替换与原型验证

六、选型与使用建议

  • 若需在逻辑电平(5V)驱动场景工作,应选择 RDS(on) 在低 Vgs 下也满足需求的“logic-level”器件;FQD16N25CTM 更适合 10V 驱动。
  • 为降低开关损耗与 EMI,选型时综合考量 RDS(on)、Qg、Coss 与实际开关频率;高频时注意驱动功率与散热。
  • PCB 布局要点:尽量缩短栅极与源之间回路,增大漏极散热铜箔,设置地平面并注意热通道。

总结:FQD16N25CTM 在 250V 电压等级下提供稳健的开关能力与 DPAK 的实用封装,适合需要中等导通电阻与高压耐受的应用,但在驱动电流与热设计上需给出足够重视以发挥器件潜力。

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