WMSIC Electronic Components

AOS AOTL66912

ModelAOTL66912
PackageTOLL-8L
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 AOTL66912
Type
AOS
Minimum package
2000

Technical parameters

Electronic Component
AOS
Electronic Component
AOTL66912
Electronic Component
1
Package
TOLL-8L
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
1g
Electronic Component
1
Electronic Component
BM0264240626
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
500W
Electronic Component
2000
Voltage(Vdss)
100V
Capacitor(Ciss)
12.5nF
Output Capacitor(Coss)
3.19nF
Gate (Qg)
220nC@10V

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

AOTL66912 产品概述

一、主要参数概览

AOTL66912 是一颗 N 沟道功率 MOSFET,面向中高压大电流电力电子应用。主要电气参数如下:

  • 漏源耐压 Vdss:100 V
  • 连续漏极电流 Id:380 A(器件额定值,具体受散热与封装影响)
  • 导通电阻 RDS(on):1.7 mΩ @ Vgs = 10 V
  • 最大耗散功率 Pd:500 W(通常基于良好散热条件)
  • 栅阈电压 Vgs(th):3.5 V
  • 总栅极电荷 Qg:220 nC @ 10 V(高速开关时需要较大驱动电流)
  • 输入电容 Ciss:12.5 nF;输出电容 Coss:3.19 nF;反向传输电容 Crss:55 pF
  • 工作温度范围:-55 ℃ 至 +175 ℃
  • 品牌:AOS(Alpha & Omega Semiconductor)
  • 封装:未定(使用前请以官方数据手册确认封装及热阻参数)

二、产品特性与优势

  • 低导通电阻(1.7 mΩ)在低压导通时可显著降低导通损耗,适合高电流路径使用。
  • 高额定电流(380 A)与高耗散功率(500 W)表明器件针对大功率、短时或良好散热条件下的连续工作场景设计。
  • 较大的 Ciss 与 Qg 指出在快速开关场合需要强驱动能力,但这也带来更高的驱动能耗与驱动器热耗。
  • 宽温度工作范围(最高达 175 ℃)提高了在高温环境或严苛工作条件下的可靠性边界(受封装与散热限制)。

三、驱动与开关损耗考虑

  • Qg = 220 nC 意味着在 10 V 驱动电压下,若要求 100 ns 上升时间,则驱动瞬时电流约为 22 A(I = Q * dV/dt)。因此推荐使用高峰值电流的专用栅极驱动器,或通过增加开关时间与串联栅阻来降低驱动电流与振铃。
  • Coss = 3.19 nF 带来的能量 Eoss ≈ 0.5 * Coss * V^2,对于 100 V 约为 15.95 μJ。该能量在每次关断时释放到负载/阻尼网络,会影响开关损耗与电压应力,建议配合合适的缓冲(吸收)电路或 TVS。
  • 推荐在驱动回路中使用合适的栅阻(根据系统开关速度与 EMI 要求选择),并在必要时采用负栅驱动或 Miller 钳位以避免误导通。

四、热管理与可靠性注意

  • 标称 Pd=500 W 通常基于理想散热(如铜基板、强制风冷或散热器直触)。实际系统中,须依据封装热阻、PCB 铜厚/面积和环境散热能力重新计算结温上升与允许的持续电流。
  • 导通损耗实例:在导通电流 100 A 时,Pcond = I^2 * RDS(on) ≈ 17 W;在 200 A 时约 68 W;在接近额定 380 A 时损耗极高(>245 W),因此在高电流应用建议并联器件或采用短时脉冲模式。
  • 建议确保结温不超过制造商推荐值(查阅数据手册),并在长期运行条件下预留安全裕度。

五、典型应用场景

  • DC-DC 大功率转换器(PFC、主开关)
  • 逆变器与电机驱动(需结合适当并联或并联控制)
  • 交换电源输出开关、同步整流器(在适当冷却下)
  • 高功率开关模块与工业电源

六、PCB 布局与可靠性建议

  • 最小化电流回路的环路面积以降低寄生电感,采用多层厚铜与宽引线连接 MOSFET 的漏极/源极。
  • 栅极驱动回路应尽量短且使用屏蔽层,栅极与源极之间可并置小电容或 RC 抑制环路振荡。
  • 对于高电流路径,采用 Kelvin 源端测量与独立源回路以获得稳定的驱动基准。
  • 上电、关断与短路保护策略(软起动、限流、热关断)必不可少。

七、订购与资料获取

  • 本概述基于提供的关键参数整理,实际选型与可靠性评估请以 AOS 官方数据手册为准,特别是封装热阻、SOA、脉冲额定、EAS(能量吸收能力)等关键信息。若需并联使用、热仿真或驱动方案设计,可将实际工作点与 PCB 附图提供,以便进行更精确的建议。

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