WMSIC Electronic Components

SILAN SDM05M50DASTR

ModelSDM05M50DASTR
PackageSOP-23H
BrandSILAN
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
SILAN SDM05M50DASTR
Type
SILAN
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SILAN
Electronic Component
SDM05M50DASTR
Electronic Component
1
Package
SOP-23H
Type
MOSFET
Electronic Component
Intelligent Power Module (IPM)
Electronic Component
Electronic Component
Electronic Component
4.417g
Electronic Component
1
Electronic Component
BM0226412380
Electronic Component
Electronic Component
Electronic Component
500
Voltage(Vdss)
500V
Voltage(Vrms)
1500Vrms
Current(Id)
5A

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

SDM05M50DASTR 产品概述

一、产品简介

SDM05M50DASTR 是士兰微(SILAN)旗下的一款高压 MOSFET 器件,面向三相桥(three‑phase bridge)应用场景设计。器件的关键基础参数包括:漏源耐压 Vdss = 500V、连续漏极电流 Id = 5A、封装为 SOP‑23H,并具备 1500Vrms 的隔离电压等级。该器件集成度高、体积小巧,适用于对体积、成本和集成度有要求的中小功率高压电源与电机驱动场合。

二、主要特性

  • 高压耐受:500V 漏源电压,适合 400V 直流母线及更高安全裕度的高压边应用。
  • 中等电流能力:连续漏极电流 5A,满足小功率逆变器与电机驱动的输出需求。
  • 三相桥配置:便于实现三相半桥或全桥拓扑,减少器件数量与 PCB 连接复杂度(具体内部连接请以产品数据手册为准)。
  • 隔离能力:1500Vrms 隔离电压,利于满足一定的安全隔离要求,有利于系统边界设计与可靠性。
  • 紧凑封装:SOP‑23H 体积小、适合表贴工艺,有助于缩小系统尺寸,但对散热设计提出更高要求。

三、典型应用

  • 小功率三相无刷直流电机(BLDC)驱动:风扇、泵类家电、便携式工具等。
  • 轻工业变频器与伺服驱动:低功率电机控制单元。
  • 中小功率逆变器与 UPS:作为高压侧开关元件使用,配合驱动与滤波电路可组成桥臂。
  • 开关电源与功率因数校正(PFC):适用于高压段开关或同步整流场合(需结合具体电路评估)。
  • 电磁阀与继电器替代驱动:在高压驱动场合可实现高效开关控制。

四、设计与使用要点

  1. 驱动要求
    • 为保证开关性能与可靠性,应使用匹配的栅极驱动器,注意提供足够栅极电压幅值与源/汇流能力。常见驱动电压区间为 10–12V(以厂商数据手册为准)。
    • 推荐在栅极串接小阻值限流电阻以控制开关速度、减小振荡并降低 EMI。
  2. 布局与走线
    • 适当增大器件散热铜箔面积并配合过孔(thermal vias),以提升散热能力。
    • 将大电流回路布局最短、最粗,减小寄生电感,放置退耦电容于电源端与器件最近位置。
    • 对于三相桥结构,应注意每相回路的环路面积一致并尽量减小,避免不对称导致 EMI 或寄生振荡。
  3. 保护与抑制
    • 高压开关容易产生能量反冲,建议在关键节点采用 TVS、RCD 吸收或 RC 缓冲网络防止过压。
    • 考虑软开关或斜坡驱动策略以降低开关损耗和电压尖峰。
    • 设计电流检测与过流保护(限流、瞬时断流)以保护器件免受过载。
  4. 热管理与功率耗散
    • SOP‑23H 的散热能力有限,器件在 5A 工作时需评估 Rds(on) 带来的导通损耗(Pd ≈ I^2·Rds(on))与开关损耗。
    • 在高占空比或连续导通场合应进行热仿真与实测,必要时通过增加 PCB 区域铜厚或外部散热器来降温。
  5. 测试与可靠性验证
    • 在方案开发阶段进行 SOA(安全工作区)、开通/关断应力测试及热循环试验,验证长期可靠性。
    • 若应用中存在反复的瞬态高能量冲击,应验证器件的能量吸收与失效模式。

五、封装说明与限制

SOP‑23H 封装优势在于体积小、成本低,适合集成度高的消费及工业产品。但该封装的热阻相对较高,适合中小功率场合。设计时要充分利用 PCB 铜皮面积作为散热片,并考虑器件间距以利散热与绝缘。

六、选型建议与替代考量

在选择 SDM05M50DASTR 时,应关注以下参数以确保匹配系统需求:最大漏源电压、持续与脉冲电流能力、Rds(on)、总栅电荷 Qg、开关速度、热阻及 SOA 特性。若系统需要更高电流或更低导通损耗,应考虑更大封装(例如 TO‑220/TO‑263)或并联器件;若对集成度有更高要求,可寻找封装内含驱动或功率级集成的器件替代。

七、总结

SDM05M50DASTR 以 500V 高压等级、5A 连续电流能力和三相桥配置,适合小型三相驱动与高压开关场合。器件具有体积小、隔离电压高等优点,但在散热与开关损耗管理上需要谨慎设计。最终选型应结合系统的实际电流、热预算和开关频率,并参照厂家完整数据手册进行详细验证与可靠性评估。

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