WMSIC Electronic Components

Infineon BSC050N04LS G BSC050N04LS

ModelBSC050N04LS G
PackageTDSON-8(5x6)
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+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Infineon BSC050N04LS G
Type
INFINEON
Unit
Electronic Component
Minimum package
5000

Technical parameters

Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
BSC050N04LS G
Electronic Component
1
Package
TDSON-8(5x6)
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.181g
Electronic Component
1
Electronic Component
BM0228685633
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
57W
Electronic Component
5000
Voltage(Vdss)
40V
Capacitor(Ciss)
3.7nF
Gate (Qg)
47nC@10V

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

BSC050N04LS G 产品概述

BSC050N04LS G 是英飞凌(Infineon)的一款 N 沟道功率 MOSFET,面向中低电压、高电流的功率转换与开关应用。器件额定漏源电压 40V,能够承受高达 85A 的连续漏极电流,并在适当散热条件下实现最大 57W 的耗散功率。器件工作温度范围宽(-55℃ 到 +150℃),适用于工业与消费类环境。封装为 TDSON-8 (5×6),便于 PCB 安装与热管理。

一 特性与关键参数解读

  • 漏源电压(Vdss):40 V,适合 12V/24V 电源轨及相关升降压或同步整流场合。
  • 连续漏极电流(Id):85 A,显示器件在低阻抗、强电流场合的能力,需配合良好散热与 PCB 设计以发挥性能。
  • 最大耗散功率(Pd):57 W,反映在标准测量条件与良好散热下的功耗承受能力,实际应用中需根据封装热阻与散热条件折减。
  • 阈值电压(Vgs(th)):2 V(典型),说明在较低栅压下开始导通,但出于线性区与损耗考虑,建议采用 10V 或指定驱动电压以实现低导通阻抗。
  • 总栅电荷(Qg):47 nC @ 10 V,表明在 10V 栅压切换过程中栅极需要较大的驱动电荷量,短脉冲高速开关时要求较高瞬时驱动电流。
  • 输入电容(Ciss):3.7 nF @ 20 V,反向传输电容(Crss):33 pF @ 20 V,这些参数用于估算开关速度与驱动能量,Crss 影响栅-漏耦合导致的米勒干扰。
  • 工作温度范围:-55℃ 至 +150℃,适应较宽环境温度边界,利于工业级应用。

二 封装与热管理要点

  • 封装:TDSON-8 (5×6),紧凑且便于多管并联,但热流需通过焊盘与 PCB 散出。
  • 散热设计:尽管 Pd 标称 57W,但实际在系统中需使用合理的铜层面积、过孔阵列与底部散热片或散热基板。建议查阅完整热阻(RthJA / RthJC)数据并据此计算结温。
  • PCB 布局:短粗的电流回路、充足的散热层、靠近器件的去耦电容与对称的焊盘有助于降低寄生电感与热阻。

三 典型应用场景

  • 同步整流与降压(buck)转换器的功率开关:适用于 12V/24V 电源轨,尤其需要承载较大输出电流的场合。
  • 电源管理与分配开关:在需要低导通损耗和高连续电流的电源开关或负载开关应用中表现良好。
  • 电机驱动与功率级:适合中功率电机驱动级短时/连续放电,但需配合足够散热。
  • DC-DC 变换器、逆变器的中低压半桥或全桥功率器件。

四 设计与使用注意事项

  • 栅极驱动:Qg 为 47 nC,在高频切换下对驱动电流要求高,建议使用低阻抗、高峰值电流的栅极驱动器,并且在栅极串联合适阻阻(Rg)以控制开关速度与振铃。
  • 开关损耗与导通损耗平衡:高栅驱动电压可降低导通阻抗但可能增加开关损耗与 EMI,需在驱动电压、开关速度和散热之间权衡。
  • 抗米勒效应:Crss 值及寄生电感可能引起米勒引起的误动作或过冲,建议合理布局并且在必要时采用缓冲措施(RC 吸收或栅钳)。
  • 热饱和与并联注意:并联使用时需保证良好电流共享(低且匹配的 Rds(on) 与一致的散热);单管在高电流下需监控结温避免热失控。
  • ESD 与装配:栅极敏感,装配与测试时注意静电防护和焊接工艺控制,避免过热损伤器件。

五 选型建议与验证步骤

  • 验证关键参数:在最终设计前,参考并对照完整的官方数据手册以获取精确的 Rds(on)、Rth、SOA、脉冲额定等参数。
  • 评估系统热预算:基于实际开关频率、占空比和负载电流计算损耗并选择合适散热方案;在 PCB 设计阶段预留足够的铜箔面积与热通道。
  • 驱动与 EMI 验证:根据 Qg 与 Ciss 选配驱动器,实验验证开关波形、过冲和 EMI 行为,必要时加入抑制网络或软开关策略。
  • 替代器件对比:若需更低开关损耗或更低 Rds(on),对比同类 40V 等级器件时重点查看 Rds(on)、Qg 与热阻参数,选择最匹配系统要求者。

总结:BSC050N04LS G 以其 40V 电压等级、85A 高电流能力和较高的功率耗散能力,适合中低压高电流场景的主开关或同步整流角色。设计时应重视栅极驱动与热管理,结合完整数据手册与系统测试确保可靠运行。若需要我可根据您的具体应用(电源电压、开关频率、负载电流与 PCB 结构)帮您做更精确的损耗估算与散热建议。

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