WMSIC Electronic Components

Power Integrations TOP258YN

ModelTOP258YN
PackageTO-220-7C
BrandPOWER INTEGRATIONS
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
Power Integrations TOP258YN
Type
POWER INTEGRATIONS
Minimum package
500 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
POWER INTEGRATIONS
Electronic Component
TOP258YN
Electronic Component
1
Package
TO-220-7C
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
4.056g
Electronic Component
1
Features
(OTP); (SCP); (OVP)
Electronic Component
Electronic Component
Electronic Component
BM0265647078
Electronic Component
PWM
Operating Temperature
40℃~+150℃
Switching Frequency
66kHz;132kHz
Electronic Component
Electronic Component
Isolation
Isolated

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

TOP258YN AC-DC控制器产品概述

TOP258YN是Power Integrations(帕沃英蒂格盛)推出的隔离式反激拓扑AC-DC控制器,集成高压功率晶体管,专为中小功率离线电源设计,具备宽输入电压范围、多重保护功能及灵活的开关频率特性,广泛应用于消费电子、工业控制、照明等领域。

一、产品核心定位与典型应用

TOP258YN属于PI的节能型AC-DC解决方案,核心定位为高集成度、宽适应范围的隔离式电源控制器,典型应用场景包括:

  1. 消费电子适配器:如笔记本电脑、平板电脑、智能家居设备的电源适配器;
  2. LED驱动电源:室内外LED照明(如路灯、面板灯)的恒压/恒流驱动;
  3. 工业控制电源:小型PLC、传感器、工业仪表的辅助电源;
  4. 家电电源:电视、机顶盒、空调等家电的待机或主电源模块。

其700V高压晶体管耐压可覆盖全球宽AC输入范围(90~265VAC),无需额外输入稳压电路,适配不同地区电网标准。

二、关键电气参数解析

TOP258YN的核心参数直接决定了其性能边界,关键参数如下:

  1. 隔离特性:采用隔离式设计,满足电气隔离安规要求(如UL、CE等),有效保护后级负载及人身安全;
  2. 开关频率:支持66kHz/132kHz双频切换,设计时可根据需求选择:低频率(66kHz)降低开关损耗,提升效率;高频率(132kHz)缩小变压器体积,优化电源尺寸;
  3. 最大占空比:78%的高占空比设计,在反激拓扑中可提升功率传输效率,同时支持更大的输出功率范围;
  4. 晶体管耐压:内置700V高压MOSFET,无需外接高压开关管,简化电路设计,降低BOM成本;
  5. 工作温度范围:结温(Tj)支持**-40℃~+150℃**,覆盖工业级宽温环境,可在低温户外、高温车间等场景稳定工作。

三、集成保护功能详解

TOP258YN内置多重保护机制,无需额外外接保护电路,提升电源可靠性:

  1. 过热保护(OTP):当结温超过阈值(典型150℃)时,自动关断输出,防止器件过热损坏;温度恢复后自动重启,无需手动复位;
  2. 短路保护(SCP):输出端发生短路时,自动限制开关管电流,避免过流烧毁;短路排除后自动恢复正常工作;
  3. 过压保护(OVP):输出电压超过设定阈值时,立即关断开关管,保护后级敏感负载(如MCU、传感器);
  4. 软启动功能:开机时逐步提升输出电压,减少浪涌电流对电源及负载的冲击,延长器件寿命。

四、封装与工作特性

  1. 封装形式:采用TO-220-7C通孔封装,散热性能优异,便于手工焊接及自动化生产;引脚布局合理,可直接兼容常规PCB设计;
  2. 工作模式:采用PWM调制方式,通过占空比调节稳定输出电压,响应速度快,输出纹波小;
  3. 集成度优势:内置高压MOSFET、振荡器、保护电路等核心模块,仅需少量外部元件(如变压器、整流桥、电容)即可构成完整电源,大幅缩小电源体积。

五、拓扑结构与能效优势

TOP258YN采用反激式拓扑结构,该拓扑具备以下优势:

  1. 结构简单:无需复杂的电感绕组及反馈电路,设计难度低;
  2. 成本可控:元件数量少,BOM成本低于正激、推挽等拓扑;
  3. 能效符合标准:通过优化开关频率与占空比,电源效率可达80%以上(典型应用),满足能源之星、欧盟ERP等能效要求;
  4. 隔离安全:反激拓扑天然具备电气隔离特性,无需额外隔离电路,简化安规认证流程。

综上,TOP258YN凭借高集成度、宽适应范围、多重保护及灵活的参数配置,成为中小功率隔离式AC-DC电源的优选控制器,适用于对可靠性、体积及成本有综合要求的应用场景。

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