WMSIC Electronic Components

AOS AONS66917

ModelAONS66917
PackageDFN-8(5x6)
BrandAOS
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
AOS AONS66917
Type
AOS
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
AOS
Electronic Component
AONS66917
Electronic Component
1
Package
DFN-8(5x6)
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.215g
Electronic Component
1
Electronic Component
BM0263471798
Operating Temperature
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
100V
Capacitor(Ciss)
5.94nF

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

AONS66917 产品概述

一、产品简介

AONS66917 是一款表面贴装型 N 沟道功率 MOSFET,额定漏源电压 100 V、连续漏极电流 100 A(Tc),适合高电流、高效率开关场景。器件采用 8‑引脚 DFN(5x6 mm)封装,提供低导通电阻与较高的功率处理能力,适用于降压转换器、电机驱动和同步整流等应用。

二、主要参数

  • 类型:N 沟道 MOSFET(表面贴装)
  • 漏源电压 Vdss:100 V
  • 连续漏极电流 Id:100 A(在载流基准 Tc)
  • 导通电阻 RDS(on):2.9 mΩ @ Vgs = 10 V
  • 门极阈值电压 Vgs(th):2.2 V
  • 总门极电荷 Qg:80 nC @ Vgs = 10 V
  • 输入电容 Ciss:5.94 nF
  • 输出电容 Coss:1.475 nF
  • 反向传输电容 Crss(Cgd):24 pF
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:DFN‑8 (5 x 6 mm)
  • 制造商:AOS
  • 功率散热:6.2 W(Ta),215 W(Tc)

三、特点与优势

  • 低导通电阻:2.9 mΩ(10 V 门极驱动)在高电流工作时能显著降低导通损耗,提高系统效率。
  • 高电流能力:在合适的散热条件下可承受高达 100 A 的连续漏极电流,适合大功率场合。
  • 完整的开关参数:较大的输入电容(Ciss = 5.94 nF)和总门极电荷(Qg = 80 nC)表明该器件在快速开关时需要合适的门极驱动设计,以平衡开关损耗与 EMI。
  • 宽温度范围:工作温度覆盖 -55 ℃ 至 +150 ℃,适应恶劣环境与高温工况。
  • 紧凑封装:DFN‑8(5x6)提供相对小的 PCB 占用面积,同时在具备良好散热设计(例如底部散热焊盘与多层铜)时能实现高功率密度。

四、典型应用场景

  • 同步整流和高效降压开关电源(VR、DC‑DC)
  • 电机驱动与逆变器(需要高电流开关)
  • 车规与工业电源管理(100 V 等中高压域)
  • 充电器、功率因数校正(PFC)前端开关元件

五、封装与热管理建议

DFN‑8(5x6 mm)封装利于 PCB 面积优化,但要发挥器件的高电流与高功率能力,建议采用:

  • 在 PCB 底部使用大面积焊盘和多层散热内铜箔,通过过孔(thermal vias)引导热量至内层/底层散热层;
  • 设计较短、低阻抗的电流回路以降低寄生电感;
  • 使用合适的散热器或加大铜厚以满足系统的热稳定性需求;
  • 在门极驱动路径使用阻尼或栅极电阻以平衡开关速度与 EMI。

六、设计注意事项

  • 门极驱动电压:RDS(on) 标称值在 Vgs = 10 V 时测得,若在低电压驱动(如 5 V)下工作,应评估导通电阻上升对系统损耗的影响。
  • 门极电荷与驱动能力:80 nC 的总门极电荷需要较强的驱动电流以实现快速切换,否则会增加开关损耗与热应力。
  • 开关损耗与电容效应:较大的 Ciss/Coss 会影响开关过渡能量,尤其在高频应用中需权衡开关频率与效率。
  • 保护与可靠性:在高电压或高电流瞬态情况下,应配合合适的软启动、电流限制与过温保护措施,确保长期可靠性。

AONS66917 以其低 RDS(on)、高电流容限与紧凑封装,为要求高效率与高功率密度的设计提供了有吸引力的选择。在实际应用中,合理的门极驱动与热管理设计是发挥其性能的关键。

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