WMSIC Electronic Components

CJ CJQ14SN06

ModelCJQ14SN06
PackageSOP-8
BrandCJ
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ CJQ14SN06
Type
CJ
Minimum package
4000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
CJQ14SN06
Electronic Component
1
Package
SOP-8
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.18g
Electronic Component
1
Electronic Component
BM0229991280
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.4W
Electronic Component
Electronic Component
Electronic Component
4000
Voltage(Vdss)
60V
Capacitor(Ciss)
1.634nF

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

CJQ14SN06 产品概述

一、产品简介

CJQ14SN06 是江苏长电(CJ)推出的一款 N 沟道功率 MOSFET,额定漏源电压 Vdss 为 60V,连续漏极电流 Id 达 14A,适用于中低压功率开关场合。器件在 Vgs=10V 时典型导通电阻约 9.7mΩ(规格表常列为 10mΩ@10V,12A),封装为 SOP-8,适合表贴安装与密集 PCB 布局。

二、关键电参数

  • Vdss:60V,适用于 12V/24V 系统及中等电压电源管理。
  • Id(连续):14A(封装与散热受限时需注意热设计)。
  • RDS(on):9.7mΩ @ Vgs=10V, 12A(低导通电阻有利于降低导通损耗)。
  • Vgs(th):2.5V(门限电压,表明器件并非严格逻辑电平完全打开,推荐以 10V 驱动获得最低 RDS(on))。
  • Qg(总栅极电荷):39.8nC @10V,Ciss=1.634nF @30V,Crss=11pF @30V。
  • Pd(耗散功率):1.4W(SOP-8 封装条件下的功耗限制,实际散热依赖 PCB 及环境)。

三、功耗与热设计建议

基于 RDS(on) 计算导通损耗:P = I^2 · RDS(on)。例如在 12A 时,P ≈ 12^2 × 0.0097 ≈ 1.4W,已接近封装 Pd 限值,长时间大电流工作需采取加强散热(加大铜箔面积、使用散热过孔或外部散热器)。在中小电流(如 5A)下,P ≈ 0.24W,热裕量充足。建议在 PCB 设计中使用宽厚电源走线和底层散热铺铜,并在器件下方或附近安排散热过孔。

四、开关特性与驱动注意

总栅极电荷 Qg=39.8nC 表明在高频开关时栅极驱动能量和驱动电流需求较高。驱动功率约为 Pgate = Qg × Vdrive × f,例如在 Vdrive=10V、f=100kHz 时,Pgate ≈ 0.04W(仅为驱动能量,不包含开关损耗)。Crss(11pF)显示 Miller 电容效应,快速 dv/dt 转换时容易出现栅极耦合,建议:

  • 使用合适的栅极电阻(典型 5–100Ω,视驱动器能力与 EMI 要求调整)以控制开关速度和振铃。
  • 在驱动器与 MOSFET 之间留出低阻抗回路,短而粗的走线减小寄生电感。
  • 对感性负载使用合适的续流或吸收电路,减少电压尖峰。

五、典型应用场景

  • DC-DC 降压/升压转换器(中高电流输出侧开关)
  • 电机驱动与负载开关(作为低侧开关)
  • 电池管理与保护电路(需注意热设计)
  • LED 驱动与开关电源、适配器等功率开关场合

六、封装与可靠性提醒

SOP-8 封装便于自动化贴装和密集设计,但相对于散热性能较好的 DPAK/TO-220 等封装,SOP-8 的散热能力有限。器件额定工作温度范围为 -55℃ 至 +150℃,在高温条件下应保证结温不超过厂商规定并留有安全裕度。长期高载流需关注热循环和焊接工艺对可靠性的影响。

七、PCB 布局与典型电路建议

  • 电源回路短且粗,输入输出侧靠近器件放置去耦电容。
  • 栅极与驱动芯片间走线尽量短,串联小电阻抑制振铃。
  • 感性负载使用肖特基二极管或同步整流,并在开关节点添加 RC 吸收(如需抑制尖峰)。
  • 在高电流路径采用盲/埋孔或多过孔散热通路,增加铜厚与面积。

结论:CJQ14SN06 是一款面向中等功率场合的 60V N 沟道 MOSFET,在以 10V 驱动下可提供极低的导通电阻和较高的导通电流,适用于 12V/24V 系统与各类功率开关应用。但由于 SOP-8 封装的散热限制,设计时需重视热管理与开关驱动,以确保长期可靠运行。

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