WMSIC Electronic Components

Infineon BSZ0901NS

ModelBSZ0901NS
PackageTSDSON-8FL
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 23+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Infineon BSZ0901NS
Type
INFINEON
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
BSZ0901NS
Electronic Component
1
Package
TSDSON-8FL
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.09g
Electronic Component
1
Electronic Component
BM0117336171
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
69W
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.

BSZ0901NS 产品概述

BSZ0901NS 是英飞凌推出的一款高性能低阻抗 N 沟道增强型场效应管(MOSFET),面向需要极低导通损耗与高电流密度的开关应用与功率分配场景。该器件结合了低 RDS(on)、较高的连续电流承载能力与紧凑的 TSDSON-8FL 封装,适合在空间受限且散热可控的电源、电机驱动和同步整流设计中使用。

一、主要参数一览

  • 器件类型:N 沟道增强型 MOSFET
  • 漏源电压 Vdss:30 V
  • 导通电阻 RDS(on):1.7 mΩ @ VGS = 10 V, ID = 20 A
  • 阈值电压 VGS(th):2.0 V(典型)
  • 连续漏极电流 ID:145 A
  • 耗散功率 Pd:69 W(标称,需在具体散热条件下理解)
  • 输入电容 Ciss:2.85 nF @ 15 V
  • 反向传输电容 Crss:150 pF @ 15 V
  • 数量/极数:1 个 N 沟道 MOSFET
  • 封装:TSDSON-8FL(紧凑型散热平面)

二、关键特性与性能亮点

  • 极低导通电阻:1.7 mΩ 在 10 V 驱动时显著降低导通损耗,非常适合高电流、低压降的应用,如同步降压、功率分配开关等。
  • 高电流能力:器件额定连续漏极电流达 145 A(在合适散热条件下),能承受短时高峰电流,适合电源开关与功率级并联设计。
  • 紧凑封装与较高 Pd:TSDSON-8FL 在小封装下提供较好的散热能力,标称耗散功率 69 W(需结合实际 PCB 散热做热设计)。
  • 开关特性可控:Ciss 与 Crss 提供了开关能耗与驱动要求的参考,Ciss = 2.85 nF、Crss = 150 pF(@15 V)表明器件在开关切换时具有中等门极负荷和较小的米勒效应。

三、开关驱动与动态考虑

  • 驱动电压建议:为达到标称 RDS(on),建议使用典型 10 V 全栅驱动;对逻辑电平驱动(如 6–8 V)需验证导通损耗是否满足系统要求。阈值约 2 V,应避免仅靠阈值区域工作。
  • 门极电荷估算:可用 Ciss × VGS 作粗略估计,QG ≈ 2.85 nF × 10 V ≈ 28.5 nC(为近似值,实际 QG 需参考详细门极充电曲线)。驱动器应具备足够驱动电流以满足目标开关速度与损耗预算。
  • 米勒效应:Crss = 150 pF 表示在开关过渡阶段存在中等米勒耦合,快速开关时需注意栅极阻抗与共振。

四、封装与热设计建议

  • 封装:TSDSON-8FL 提供较小占板面积且允许通过底部散热平面与多层铜箔扩散热量。
  • PCB 布局建议:在器件底部及周围布局大面积散热铜箔并配合通孔或盲埋热 vias,将热量传导至内层/底层铜平面;源极与漏极的铜箔应尽量加宽以减少寄生电阻。
  • 热管理:标称 Pd 69 W 为在特定散热条件下的参考值,实际可承受功率与结温相关,设计时计算结-焊盘与焊盘-环境的热阻(RθJA、RθJC)并确保 Tj 不超过器件最高额定温度。

五、典型应用场景

  • 同步整流器与降压转换器(Buck MOSFET),用于高效能量转换以降低导通损耗。
  • 电源分配开关、负载开关、高电流开关矩阵。
  • 电机驱动低侧或高侧开关(需评估 Vdss 与驱动方案)。
  • 汽车电子、工业电源与其他对可靠性、温度范围要求较高的应用(器件工作温度支持广泛的结温区间)。

六、使用注意与可靠性要点

  • 栅极保护:为防止过压与瞬态击穿,应在栅极旁增加钳位或阻尼网络(阻容串联)以控制开关振铃并保护驱动器。
  • 反向恢复与并联:若并联多颗 MOSFET,提高布局一致性与共享电流能力需要匹配 RDS(on) 与热阻,防止热失配。
  • ESD 与浪涌:在高能量脉冲或电磁干扰环境下应加入适当静电与浪涌保护元件。
  • 工作温度与寿命:器件耐受高结温,但长期在高温下工作会影响可靠性,需做好热循环与应力评估。

七、总结

BSZ0901NS 以极低的导通电阻、较高的电流承载能力与紧凑的 TSDSON-8FL 封装,适合高效动力转换与功率管理场合。设计时重点在于合理的驱动电压(10 V 可实现标称 RDS(on))、严格的 PCB 热设计以及对开关瞬态与栅极保护的控制。结合这些设计要点,BSZ0901NS 可在同步整流、降压电源和高电流开关应用中提供优异的效率与热稳定性。

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