WMSIC Electronic Components

TEA1721AT/N1,118 TEA1721AT

ModelTEA1721AT/N1,118
PackageSOIC-7
BrandNXP
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

19 specifications

Core information

Product name
NXP TEA1721AT / N1, 118
Type
NXP
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
TEA1721AT/N1,118
Electronic Component
1
Package
SOIC-7
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
0.245g
Electronic Component
1
Features
EMI Optimization; Audio;; (OTP); (SCP);;; (UVP); (OVP)
Electronic Component
Electronic Component
Electronic Component
BM0265592166
Electronic Component
DCM
Operating Temperature
40℃~+150℃
Operating Voltage
15V~19V
Switching Frequency
22.5kHz~50.5kHz
Electronic Component
Electronic Component

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

TEA1721AT/N1,118 离线反激式转换器产品概述

TEA1721AT/N1,118是恩智浦(NXP)推出的一款非隔离离线反激式转换器,专为中小功率(通常10W以内)AC-DC电源应用设计,采用SOIC-7紧凑型封装,集成多维度保护功能与原边反馈(PSR)技术,在简化外围电路的同时兼顾可靠性与效率,适配消费电子、工业辅助电源等场景的紧凑化需求。

一、核心身份与应用定位

该器件属于离线电源控制器范畴,针对高压交流转直流(AC-DC) 场景优化,无需次级反馈绕组即可实现输出电压/电流控制,适合对成本、体积敏感的领域。其非隔离拓扑设计进一步降低了电路复杂度,尤其适配小功率低电压输出的应用(如手机充电器、智能设备电源)。

二、关键性能参数解析

  1. 电压与功率适配
    工作电压范围覆盖15V~19V,可稳定适配典型离线电源的启动与运行电压;内置晶体管耐压达700V,满足全球高压电网(220V/110V交流输入)的整流后高压需求,无需额外高压器件。
  2. 频率与占空比
    开关频率范围22.5kHz~50.5kHz,支持通过外围电阻灵活调整,兼顾电磁干扰(EMI)控制与功率密度;最大占空比75%,在宽输入电压范围内保证输出功率稳定输出。
  3. 温度适应性
    结温工作范围-40℃~+150℃,覆盖工业级环境温度要求,可在低温(如户外设备)或高温(如密闭机箱)场景下稳定运行,无需额外散热设计即可满足多数应用需求。

三、集成多维度保护机制

该器件内置4类核心保护功能,大幅提升系统可靠性:

  • 欠压保护(UVP):输入电压低于启动阈值时自动关断,防止电源启动异常或输出不稳定;
  • 过热保护(OTP):结温超过150℃时触发保护,通过降频或关断输出避免器件热损坏,温度回落至安全范围后自动重启;
  • 短路保护(SCP):输出端短路时快速关断,防止电流过大烧损器件,短路排除后可自动恢复工作;
  • 过压保护(OVP):输出电压异常升高时切断功率输出,保护负载设备免受过压损坏。

四、拓扑与反馈设计优势

  1. 反激拓扑适配离线应用
    反激式拓扑是离线AC-DC电源的经典选择,可实现电气隔离(注:该器件为非隔离设计,简化了变压器绕组),适合宽输入电压范围的功率转换,效率可达80%以上(典型应用)。
  2. 原边反馈(PSR)简化电路
    无需次级反馈电路(如光耦、TL431),仅通过原边绕组的电压/电流采样即可实现输出电压调节,减少了器件数量与PCB空间,降低了BOM成本,同时提升了系统抗干扰能力。

五、封装与典型应用场景

  • 封装特点:SOIC-7封装体积小(7引脚),引脚间距适中,便于手工焊接或自动化贴装,适合紧凑的PCB布局;
  • 典型应用:
    ① 消费电子:手机充电器、蓝牙耳机充电盒电源、智能手表适配器;
    ② 工业辅助:小型PLC辅助电源、传感器供电模块;
    ③ 照明领域:小功率离线LED驱动电源(如台灯、应急灯)。

六、品牌与可靠性保障

作为恩智浦的成熟产品,TEA1721AT/N1,118通过了严格的可靠性测试,符合RoHS环保标准,可长期稳定运行于恶劣环境。其集成度高、外围简单的特点,也便于工程师快速完成电源方案设计与调试。

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