WMSIC Electronic Components

Power Integrations TNY284DG-TL TNY284DG

ModelTNY284DG-TL
PackageSO-7
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Power Integrations TNY284DG-TL
Type
POWER INTEGRATIONS
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
POWER INTEGRATIONS
Electronic Component
TNY284DG-TL
Electronic Component
1
Package
SO-7
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
0.222g
Electronic Component
1
Features
EMI Optimization;; (OTP); (SCP);; (OVP)
Electronic Component
Electronic Component
Electronic Component
BM0264552496
Electronic Component
CCM
Operating Temperature
40℃~+150℃
Switching Frequency
132kHz
Electronic Component
Electronic Component
Isolation
Non-isolated

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

TNY284DG-TL 离线反激转换器产品概述

一、产品定位与拓扑基础

TNY284DG-TL是Power Integrations(帕沃英蒂格盛)推出的中小功率离线反激式转换器,专为非隔离/低隔离需求的电源设计,采用副边反馈控制架构,集成度高,可简化外部电路布局。

其核心拓扑为反激式,通过变压器磁耦合实现能量传输(非隔离应用可省略额外隔离绕组),开关频率稳定在132kHz(典型值),覆盖124kHz~140kHz范围——处于人耳不可闻频段,既避免电磁干扰(EMI)问题,又能通过高频优化变压器体积,平衡效率与成本。

二、关键电气参数解析

  1. 高压适配能力:内置725V耐压MOSFET,支持全球宽电压输入(85VAC~265VAC),无需额外降压电路,适配不同地区电网;
  2. 宽温工作范围:结温(Tj)支持**-40℃+150℃**,覆盖工业级(-40℃+85℃)与消费级(0℃~+70℃)环境,适合户外设备或高温机箱内使用;
  3. 紧凑封装:采用SO-7(小外形7引脚)封装,尺寸仅5.2mm×6.0mm×1.75mm,适配PCB高密度布局,降低电源模块体积;
  4. 精准反馈:副边反馈设计(光耦+TL431配合),输出电压精度可达±1%,优于原边反馈(PSR)方案,适合对电压稳定性要求高的场景(如LED驱动、精密仪器供电)。

三、集成保护功能详解

TNY284DG-TL内置多重保护机制,无需外部额外元件,提升系统可靠性:

  1. 过热保护(OTP):结温超过140℃(典型阈值)时自动关断输出,温度降至120℃后重启,避免过热烧毁;
  2. 短路保护(SCP):输出短路时限制MOSFET峰值电流至1.2A(典型值),进入打嗝模式(关断→重启循环),防止短路电流过大损坏元件;
  3. 过压保护(OVP):输出电压超过1.2倍额定值时立即关断,避免过压损坏负载(如敏感芯片、LED)。

四、典型应用场景

基于拓扑与参数特性,该芯片适用于以下场景:

  1. 消费电子适配器:手机充电器(≤10W)、机顶盒/路由器电源(5V/2A);
  2. 小功率LED驱动:台灯、应急灯(输出电流≤300mA);
  3. 工业辅助电源:PLC、传感器模块供电(12V/1A);
  4. 家电控制板:空调、洗衣机的非隔离控制电源(降低成本)。

五、设计优势与注意事项

核心优势

  • 集成度高:内置MOSFET、控制器与保护电路,仅需变压器、整流桥、电容等少量外部元件即可构成完整电源;
  • 效率优化:132kHz高频降低变压器体积,满载效率≥80%(典型值);
  • EMI简化:固定开关频率避免频率抖动,配合内置EMI抑制,减少外部滤波元件。

设计注意

  • 变压器设计:反激拓扑需避免磁饱和(非隔离应用可采用低磁导率磁芯);
  • 散热规划:高结温工作时需增加PCB散热铜箔,或搭配小型散热片;
  • 反馈匹配:副边反馈需选用线性度好的光耦,确保输出电压稳定。

总结

TNY284DG-TL以宽电压适应、多重保护、紧凑封装为核心优势,适合中小功率电源设计需求,是消费电子、工业控制等领域的实用选择,可有效降低电源模块的设计复杂度与成本。

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