WMSIC Electronic Components

Infineon BSZ520N15NS3GATMA1

ModelBSZ520N15NS3GATMA1
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Infineon BSZ520N15NS3GATMA1
Type
INFINEON
Minimum package
5000

Technical parameters

Electronic Component
INFINEON
Electronic Component
BSZ520N15NS3GATMA1
Electronic Component
1
Package
TSDSON-8FL
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.08g
Electronic Component
1
Electronic Component
BM0227677314
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
57W
Electronic Component
5000
Voltage(Vdss)
150V
Capacitor(Ciss)
890pF
Gate (Qg)
12nC@10V
Resistor(RDS(on))
52mΩ@10V

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

BSZ520N15NS3GATMA1 产品概述

一、产品简介

BSZ520N15NS3GATMA1 是英飞凌(Infineon)推出的一款高压 N 沟场效应晶体管(MOSFET),单颗封装,适用于开关电源与功率变换场合。该器件在 150V 的耐压等级下提供较低的导通电阻与中等栅极电荷,兼顾导通损耗与驱动复杂度,适合中功率、高电压的开关拓扑。

二、主要参数

  • 品牌:Infineon(英飞凌)
  • 器件类型:N 沟 MOSFET(1 个)
  • 漏源耐压 Vdss:150 V
  • 连续漏极电流 Id:21 A
  • 耗散功率 Pd:57 W
  • 导通电阻 RDS(on):52 mΩ @ Vgs = 10 V
  • 阈值电压 Vgs(th):4.0 V @ Id = 35 μA
  • 总栅极电荷 Qg:12 nC @ Vgs = 10 V
  • 输入电容 Ciss:890 pF
  • 反向传输电容 Crss(Miller):3.4 pF @ 75 V
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:TSDSON-8FL

以上参数为器件特性中的关键指标,具体使用时应参考完整数据手册进行电气和热限值核对。

三、驱动与开关性能建议

  • 栅极驱动电压:RDS(on) 标定在 Vgs = 10 V,建议栅极驱动使用接近 10 V 的驱动电平以达到标称导通电阻。在仅用 5 V 驱动的场合,导通电阻会明显增大,应避免直接由低压逻辑驱动。
  • 栅极电荷与驱动能力:Qg = 12 nC,为中等栅极电荷量。举例:在 100 kHz 开关频率下,驱动平均电流约为 Qg × f ≈ 12 nC × 100 kHz = 1.2 mA;驱动功耗约为 Vdrive × Qg × f(若 Vdrive = 10 V,则约 12 mW)。实际设计须考虑峰值电流,门极驱动器需具备足够的瞬态驱动能力(通常为数百 mA 到数 A),以实现期望的上升/下降时间。
  • 抑制振荡与电磁干扰:建议在门极串联小阻(常见 5–20 Ω)配合 RC 缓冲,既能限制 di/dt 和 dv/dt,降低 EMI,又能保护驱动器与避免并联器件振荡。
  • Miller 效应:Crss = 3.4 pF(@75 V)相对较小,有利于减少栅极在电压翻转区间的卡滞(Miller plateau)影响,但在高 dV/dt 场合仍应注意栅极回路布局与阻尼处理。

四、热管理与封装注意

  • 封装 TSDSON-8FL 提供较紧凑的热路径,但要充分利用 PCB 散热:在底部焊盘下加入大面积的敷铜与多层过孔,保证热量能迅速传导到内层 / 底层铜箔。
  • Pd 标称 57 W,但实际可用散热能力受 PCB 设计、自然对流与环境温度影响显著;在持续高功率条件下应按照热阻与结温限制计算功耗并适当降额使用。
  • 建议在布局时保持漏极和源极的低阻连接、短回路路径,并避免把敏感信号走线靠近高 dV/dt 区域,以降低噪声耦合。

五、典型应用场景

  • 高压开关电源(例如 150V 侧的初级开关)
  • 反激或正激半桥、全桥拓扑中的开关元件
  • 功率因数校正(PFC)级的开关器件(视具体拓扑与效率需求)
  • 中功率电机驱动或功率级保护电路(需注意阈值与驱动电平匹配)

六、设计与可靠性建议

  • 驱动匹配:若系统以 MCU(3.3 V / 5 V)直接驱动,务必评估在低 Vgs 下的导通损耗;推荐使用专用栅极驱动器以确保器件在导通时达到低 RDS(on)。
  • 保护电路:在高电压应用中,应配置合适的 TVS、RC 吸收网络或能量回馈电路以保护 MOSFET 避免过压或能量冲击。
  • 测试与验证:在样机阶段增加短路保护、热成像检查结温分布、在不同频率与负载下测量开关损耗与热升,以确定最终 PCB 及系统的安全工作区间。
  • 可靠性:遵守数据手册中关于最大栅源电压、最大结温与安全工作区(SOA)等限制,避免在极限情形下长期运行。

总结:BSZ520N15NS3GATMA1 在 150 V 等级下提供平衡的导通损耗与开关性能,适合中等功率的高压开关应用。合理的栅极驱动、良好的 PCB 散热设计与必要的保护电路,是发挥该器件性能并保证长期可靠性的关键。若需进一步匹配驱动器型号或进行热仿真,可提供详细工作点以便给出更具体的建议。

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