WMSIC Electronic Components

AOS AONY36352

ModelAONY36352
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
AOS AONY36352
Type
AOS
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
AOS
Electronic Component
AONY36352
Electronic Component
1
Package
DFN-8(5x6)
Electronic Component
2 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.267g
Electronic Component
1
Electronic Component
BM0227261990
Power Dissipation(Pd)
21W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
30V
Capacitor(Ciss)
820pF

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

AONY36352 产品概述

一、器件概览

AONY36352 为 AOS 提供的双路 N 沟道功率 MOSFET,额定漏源电压 Vdss = 30V,封装为 DFN-8 (5×6)。器件面向低电阻、高效率开关应用,单颗器件内含两个 N 沟道晶体管,适合中低压、较大电流的电源和功率管理场景。

二、关键电气参数

  • 漏源电压(Vdss):30 V,适用于 12V/24V 级别电源轨。
  • 导通电阻(RDS(on)):9.1 mΩ @ Vgs = 4.5V (测试电流 20A),属超低电阻级别,导通损耗小。
  • 阈值电压(Vgs(th)):2.1 V @ 250 μA,表现为逻辑电平型门极,4.5V 已能得到较低的 RDS(on)。
  • 总栅极电荷(Qg):20 nC @ 10 V,驱动能量中等,频繁开关时需注意驱动器能力与功耗。
  • 输入/输出/反向传输电容:Ciss = 820 pF,Coss = 230 pF,Crss = 35 pF,影响开关速度、开关损耗与 Miller 效应。

三、开关与驱动特性

  • 较低的 RDS(on) 在导通阶段显著降低 I²R 损耗,适合高效率同步整流与功率分配。
  • Qg = 20 nC 表示在高频切换时对门极驱动电流有一定需求,若工作频率较高(>200 kHz),建议使用专用高电流栅极驱动器以缩短开关时间并降低开关损耗。
  • 中等的 Crss(35 pF)意味着在 dv/dt 较大时会有明显 Miller 效应,布局与驱动策略需要考虑抑制振铃与电磁干扰。

四、热管理与功率损耗

DFN-8(5×6) 封装利于散热,但具体结到环境的热阻取决于 PCB 的铺铜与过孔设计。建议:

  • 在 PCB 底部与内层布置大面积散热铜箔并通过热过孔与底铜相连;
  • 将高电流走线尽量短、加宽,减小寄生电阻;
  • 在持续大电流工况下关注结温上升并根据应用选择合适的散热与散热路径。

五、封装与 PCB 布局建议

  • 利用 DFN 的大底盘焊盘实现良好焊接与散热:焊接时确保底部焊盘充分回流并与 PCB 内层散热铜通。
  • 门极走线应尽量短且采用 Kelvin 布局(门极回路与源回路分开),以减少寄生环路和振铃。
  • 在栅极附近并联合适的阻容(例如栅极电阻与 RC 抑制网络)以控制上升/下降沿,减少 EMI 与过冲。

六、典型应用场景

  • 同步降压转换器(同步整流高侧/低侧)
  • 负载开关与电源路径管理
  • 车载辅助电源、工业电源管理与电池保护电路(30V 额定足够覆盖常见车载与工业电压)
  • 多相电源和服务器/通信设备的功率级开关元件

七、选型与使用注意事项

  • 若系统门极驱动仅为 4.5V/5V,可直接利用其低 RDS(on) 优势;若希望更低损耗并允许更高驱动电压,可参考 10–12V 驱动时的开关表现。
  • 在并联使用时注意匹配电阻与寄生参数,并预留足够散热能力。
  • 文中给出的若干额定(如峰值电流、散热功率等)请以 AOS 官方数据手册为准,设计前建议核对完整的温度依赖曲线与脉冲额定值。

八、总结

AONY36352 以 30V、9.1 mΩ(@4.5V)低导通电阻与适中的栅极电荷,为需兼顾导通损耗与开关性能的中低压电源设计提供了性价比较高的双通道解决方案。结合良好的 DFN 散热布局,可在同步整流、DC-DC 转换及电源管理领域发挥良好效果。若需进一步电气特性曲线与热阻参数,请参阅 AOS 官方产品手册以完成最终设计验证。

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