WMSIC Electronic Components

CJ CJAC80SN10

ModelCJAC80SN10
PackageDFN-8(5x6)
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 CJAC80SN10
Type
CJ
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
CJAC80SN10
Electronic Component
1
Package
DFN-8(5x6)
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.182g
Electronic Component
1
Electronic Component
BM0227330799
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
100W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
100V

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

CJAC80SN10 产品概述

CJAC80SN10 是江苏长电/长晶(CJ)推出的一款高功率 N 沟道增强型场效应晶体管(MOSFET),面向要求高电流、低导通损耗和高耐压的开关电源与功率转换场合。器件采用 DFN-8(5×6 mm)小型扁平封装,适合高密度功率设计与良好热管理的 PCB 布局。

一、主要参数概览

  • 型号:CJAC80SN10
  • 品牌:CJ(江苏长电/长晶)
  • 类型:N 沟道 MOSFET(增强型)
  • 漏源耐压 Vdss:100 V
  • 连续漏极电流 Id:80 A(实际载流能力依赖散热与 PCB 设计)
  • 导通电阻 RDS(on):10.5 mΩ @ Vgs = 4.5 V
  • 阈值电压 Vgs(th):2.5 V @ ID = 250 μA
  • 总栅极电荷 Qg:100 nC @ Vgs = 10 V
  • 输入电容 Ciss:3.15 nF
  • 输出电容 Coss:650 pF
  • 反向传输电容 Crss (Coss):8 pF
  • 功耗 Pd(结到环境或器件允许的最大耗散,视散热条件):100 W
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:DFN-8 (5×6 mm)

二、性能特点与工程意义

  • 低导通电阻:10.5 mΩ(4.5 V 驱动)在高电流场合可显著降低导通损耗,提高效率,适合同步整流和高电流低压侧开关。
  • 逻辑电平友好:在 4.5 V 驱动下已能达到额定 RDS(on),便于与低电压门极驱动器配合,提高系统兼容性。
  • 较大的额定电流与功耗能力:80 A / 100 W(额定值)表明在充分散热设计下可胜任较高功率密度的应用。
  • 较高的总栅极电荷(Qg = 100 nC):表明在高速开关时需要选用驱动能力较强的门极驱动器或适当设计驱动网络以控制开关损耗与电磁干扰(EMI)。

三、热管理与封装注意事项

  • DFN-8 (5×6) 封装能提供较小 PCB 占用面积,但散热依赖底部焊盘与 PCB 散热层。建议:
    • 在 PCB 底部与器件下方布置连续的大面积铜箔(散热垫),并配合多盏过孔(thermal vias)连接到内部或底层散热层;
    • 使用合理的焊膏量与印刷模板,确保良好导热路径同时避免焊接短路;
    • 在高功率应用中,进行热仿真与模组级温升验证,保证结温不超过允许范围。
  • 100 W 的 Pd 通常是理想化或在特定测试条件下的数值,实际可用功耗需结合 PCB 热阻和环境条件评估。

四、驱动与开关设计建议

  • 驱动电压:器件在 4.5 V 已是低 RDS(on);若要减少开关损耗与确保更低的导通压降,可采用 10–12 V 驱动(Qg 数据在 10 V 测得)。
  • 驱动能力:由于 Qg 高(100 nC),推荐使用能提供较大峰值电流的门极驱动器,以实现可控的上/下沿时间并减少开关损耗。
  • 阻尼与布局:为抑制振铃和 EMI,建议在门极串联小电阻(典型范围 5–20 Ω,视系统开关速度与布局而定),门极到地的旁路电容布局要靠近驱动器与 MOSFET。
  • 开关损耗管理:关注 Coss 与 Crss 对能量回收与开关损耗的影响;在高频开关(>100 kHz)工作时应评估 Coss 导致的能量交换对效率的影响。

五、典型应用场景

  • 同步整流器与同步降压转换器(DC-DC)
  • 电机驱动(中低压直流电机逆变器)
  • 电源管理与高功率开关阵列
  • 工业电源与逆变器、通信电源模块
  • 汽车电子(需结合汽车等级可靠性验证)

六、选型与系统集成提示

  • 评估系统热设计能否支持器件在最大 Id 和 Pd 状态下持续工作,必要时选择更大散热面积或外部散热器。
  • 在高频应用中,综合考虑 RDS(on)、Qg、Coss 对动态损耗与效率的影响;并根据系统优先级在导通损耗与开关损耗间做权衡。
  • PCB 布局对于降低寄生电感、电阻与热阻至关重要:短回流路径、集中旁路电容、热过孔与对地层的合理连接均能显著改善性能。
  • 生产与装配时注意 ESD 防护与回流焊工艺参数控制,DFN 封装对焊接质量敏感,应严格按照制造商推荐的焊接规范执行。

总结:CJAC80SN10 在 100 V 耐压、低导通电阻与高额定电流的组合下,适合需要高效率、高电流密度的功率转换场合。但其较大的栅极电荷与封装对热管理提出较高要求,设计时应重视驱动能力和 PCB 散热优化以发挥其最佳性能。

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