WMSIC Electronic Components

MSKSEMI AONR21357

ModelAONR21357
PackageDFN3x3-8L
BrandMSKSEMI
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
MSKSEMI AONR21357
Type
MSKSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
AONR21357
Electronic Component
1
Package
DFN3x3-8L
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.056g
Electronic Component
1
Electronic Component
BM0257677013
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
37W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
30V

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

AONR21357 产品概述

一、主要特性

AONR21357 是 MSKSEMI(美森科)推出的一款 P 沟道功率 MOSFET,面向中低压、高电流应用场景。器件额定漏—源电压为 30V,连续漏极电流可达 50A,导通电阻在标称驱动条件下低至 13mΩ(在 10V 驱动幅值条件下测得),适合对导通损耗和热量有较高要求的场合。器件栅极电荷量 Qg 为 22nC(在 4.5V 驱动幅值测得),输入电容 Ciss = 2.215nF,反向传输电容 Crss = 237pF,输出电容 Coss = 310pF,工作温度范围宽(-55℃ ~ +150℃),额定耗散功率为 37W。

二、主要参数(概要)

  • 类型:P 沟道 MOSFET
  • 漏—源电压 Vdss:30V
  • 连续漏极电流 Id:50A
  • 导通电阻 RDS(on):13mΩ @ 10V(驱动幅值条件)
  • 阈值电压 Vgs(th):2.5V(标称值)
  • 栅极电荷 Qg:22nC @ 4.5V
  • 输入电容 Ciss:2.215nF
  • 输出电容 Coss:310pF
  • 反向传输电容 Crss:237pF
  • 耗散功率 Pd:37W
  • 工作温度:-55℃ ~ +150℃
  • 封装:DFN3x3-8L
  • 品牌:MSKSEMI(美森科)

三、典型应用场景

AONR21357 适用于便携设备电源管理中的高侧开关、负载断开、逆流阻断、以及需要小封装但高电流承载能力的开关电源和电机驱动电路。DFN3x3 封装利于在面积受限的 PCB 上实现高密度布局,常见于手持设备、消费类电子、电源管理模块和负载开关应用。

四、封装与热管理建议

DFN3x3-8L 小封装带来良好的热阻与寄生电感折衷,但在高电流工况下仍需注意散热:

  • 在 PCB 布局中建议在器件底部与引脚处添加实心散热焊盘并通过多层铜箔扩展热回路。
  • 使用较大铜面积和过孔将热量引导到内层或底层平面,以降低结-壳温度。
  • 考虑器件 Pd=37W 的实际散热能力,结合预计的导通损耗计算结温,避免长期在极限 Pd 条件下工作。

五、驱动与电路设计建议

  • 由于为 P 沟道 MOSFET,门极驱动需关注栅—源电压幅值与极性(在实际电路中通常用负向或低电平栅压使器件导通),并保证驱动幅值达到标称测量条件以获得低 RDS(on)。
  • Qg 为 22nC,驱动回路需具备足够的瞬态电流能力以控制开关速度,避免因驱动速度过慢引起的开关损耗或因速度过快产生的电磁干扰和振铃。
  • 结合 Ciss/Crss 特性,在开关过渡期间合理设计栅阻并添加合适的抑制元件(如 RC 吸收或 TVS)以降低过冲与电压应力。

六、可靠性与注意事项

  • 在使用前应根据具体应用确认器件在实际工作电压、频率及环境温度下的结温不超过最大允许值。
  • 器件参数中部分电气特性为在特定驱动条件下测得(如 RDS(on) 在 10V 条件),在设计时请以实际驱动电压幅值为准并留有裕量。
  • 封装较小,焊接和回流工艺需按厂商推荐工艺曲线执行以保证焊点质量与长期可靠性。

总体而言,AONR21357 在 30V 等级中以低导通阻抗、高电流承载能力和小型 DFN 封装提供了良好的功率密度选择,适合需要兼顾体积与效率的便携电源及开关场合。

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