WMSIC Electronic Components

Infineon BSS806NH6327

ModelBSS806NH6327
PackageSOT-23
BrandInfineon
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+

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Technical data

Product details

19 specifications

Core information

Product name
Infineon BSS806NH6327
Type
INFINEON
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
BSS806NH6327
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.004g
Electronic Component
1
Electronic Component
BM0259485007
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
500mW
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
20V

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

BSS806NH6327 产品概述

BSS806NH6327 是英飞凌(Infineon)推出的一款 SOT-23 封装的逻辑电平 N 沟场效应管(N-channel MOSFET),面向小功率开关与负载控制应用。器件在 20V 漏源电压下具有较低的导通电阻和小的栅极电荷,适合电池供电与高速开关场合。

一、主要参数

  • 类型:N 沟道 MOSFET(SOT-23)
  • 漏源耐压 Vdss:20 V
  • 连续漏极电流 Id:2.3 A
  • 导通电阻 RDS(on):41 mΩ @ Vgs = 2.5 V
  • 功耗 Pd:500 mW
  • 阈值电压 Vgs(th):约 0.75 V
  • 总栅极电荷 Qg:1.7 nC @ Vgs = 2.5 V
  • 输入电容 Ciss:370 pF;输出电容 Coss:118 pF;反向传输电容 Crss:20 pF
  • 工作温度范围:-55 ℃ 至 +150 ℃

二、特性与优势

  • 低 RDS(on)(41 mΩ @2.5V):在 2.5V 逻辑电平下即可获得较低导通损耗,适合直接由 MCU 或低压驱动器驱动。
  • 小栅极电荷(1.7 nC):开关转换所需能量低,减少驱动功耗,提高开关效率,利于高频开关应用。举例:单次充放电能量约 0.5QgVgs ≈ 2.1 nJ(Vgs=2.5V),在 MHz 级频率下开关损耗仍然较小。
  • 中等电容参数(Ciss/Coss/Crss):切换速度可控,Miller 效应较小,有利于快速且稳定的开关过程。
  • 宽工作温度与小封装:在 -55~150 ℃ 工作范围内保持可靠性,适合空间受限的便携与嵌入式产品。

三、典型应用场景

  • 便携式设备的低侧或高侧(配合驱动电路)开关与负载切换
  • 电源管理:DC-DC 变换器的同步开关、开关降压电路的低侧开关
  • 逻辑电平控制的功率开关(由 MCU、FPGA 驱动)
  • 电池保护电路与电源路径选择
  • 小功率马达驱动、继电器/电磁阀驱动(需考虑感性负载保护)

四、使用注意事项与设计建议

  • 热管理:SOT-23 封装散热受限,标称 Pd = 500 mW(典型条件下)。例如在最大额定电流 2.3 A 时,I^2·R ≈ 0.216 W,仍需考虑 PCB 铜箔面积与环境温度对结温的影响,建议在设计时增大散热铜箔并靠近地铜平面扩展热路径。
  • 驱动电压:器件在 2.5V 即表现良好,若能提供更高 Vgs(请参考完整数据 sheet),可进一步降低 RDS(on)。但注意不要超过器件允许的最大栅极电压。
  • 开关瞬态与寄生:对感性负载(电机、继电器线圈)时应加速吸收二极管或 TVS,避免高压尖峰损坏器件。根据 Crss 和 Coss,可通过串联栅极电阻与阻尼网络控制振铃与 EMI。
  • 布局建议:缩短栅极到驱动端的走线,栅极并联合适的阻尼/限流电阻(如 10–100 Ω)以抑制过快边沿;在器件引脚附近放置旁路电容降低开关噪声。
  • 测试与选型:在目标工况下测量 RDS(on)、开关损耗与结温,确认在最高环境温度和最大占空比下满足 SOA 要求。

五、封装与可靠性

  • 封装:SOT-23,小型化、适合自动贴装生产。
  • 可靠性:适用于工业级温度范围,适合空间与成本受限但需可靠开关性能的产品。

总结:BSS806NH6327 是一款针对低压逻辑驱动、要求低导通损耗与低驱动功耗的紧凑型 N 沟 MOSFET。合理的 PCB 散热和瞬态抑制设计可以发挥其在便携式电源管理与小功率开关场景中的优势。如需更详细的绝对最大额定值、温度依赖特性及图形化 SOA,请参考英飞凌官方数据手册。

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