WMSIC Electronic Components

GOODWORK TL432

ModelTL432
PackageSOT-23
BrandGOODWORK
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
GOODWORK TL432
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
TL432
Electronic Component
1
Package
SOT-23
Electronic Component
Voltage Reference IC
Electronic Component
±0.5%
Electronic Component
0.035g
Electronic Component
1
Electronic Component
BM0263571075
Operating Temperature
0℃~+70℃
Operating Voltage
1.25V~18V
Electronic Component
20ppm/℃
Output Voltage
1.25V~18V
Output Current
100mA
Output Type
Electronic Component

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

TL432 可调并联电压基准芯片产品概述

一、产品核心身份与定位

TL432是固得沃克(GOODWORK)推出的可调并联型电压基准芯片,属于经典基准器件的小封装优化版本。其核心作用是为电路提供精准、稳定的参考电压,适配对体积、功耗、精度有均衡要求的场景,广泛应用于消费电子、小型工业控制、电池供电设备等领域,可替代部分进口同类器件,兼具成本优势与性能稳定性。

二、关键参数特性解析

TL432的核心参数围绕“精准、可调、低功耗”设计,具体特性如下:

  1. 电压范围宽:工作电压与输出电压均覆盖1.25V~18V,通过外接电阻分压可实现范围内任意电压输出,适配不同电路的参考需求(如1.25V基准、5V稳压补偿等);
  2. 精度表现稳定:典型精度为**±0.5%**(用户描述中提及的±1%为应用场景下的误差范围),满足多数通用电路的基准要求,无需额外校准即可稳定工作;
  3. 电流特性友好:输出电流最大达100mA,可驱动小型负载(如LED指示、小信号放大);最小阴极电流仅100uA,低功耗设计适合电池供电或低电流场景,延长设备续航;
  4. 温度适应性:工作温度范围为0℃~+70℃,属于商业级温度区间,适配室内电子设备、常规消费类产品的使用环境(如智能家居、小型仪器)。

三、封装与引脚说明

TL432采用SOT-23超小型表面贴装封装,尺寸紧凑(约1.6mm×2.9mm×1.1mm),适合高密度PCB布局(如便携设备、小型模块)。引脚定义清晰,无需额外转接即可直接焊接:

  • 1脚:阴极(C):连接输出端,需外接限流电阻(建议10kΩ~100kΩ,根据输入电压调整);
  • 2脚:参考极(R):连接分压电阻网络(如两个串联电阻),调节输出电压;
  • 3脚:阳极(A):接地或接低电位端(如电源负极)。

四、典型应用场景

TL432的可调特性与小体积优势,使其在多个场景中替代传统固定基准器件:

  1. ADC/DAC参考电压源:为模数/数模转换器提供精准参考,提升信号采集与输出精度,常见于传感器监测电路(如温度、压力传感器);
  2. 线性稳压器精度提升:搭配78xx系列线性稳压器,通过基准电压补偿,解决稳压器输出精度不足(如7805输出波动±2%)的问题,使输出精度提升至±0.5%以内;
  3. 电池电压监测电路:低功耗(100uA最小电流)适合电池供电设备,实现过压/欠压保护与电压状态检测(如智能手环、小型充电宝);
  4. 简易电压比较器:利用基准电压与输入电压对比,输出高低电平信号,用于简单的电压阈值检测(如充电器充满指示、电源欠压报警)。

五、应用注意事项

为保证TL432稳定工作,需注意以下几点:

  1. 阴极电流保障:电路中需确保阴极电流≥100uA,否则基准电压会出现漂移或不稳定(可通过限流电阻计算:(Vin - Vout)/R ≥ 100uA);
  2. 分压电阻选择:外接分压电阻需匹配输出电流,避免电阻功率过载(建议电阻功率≥1/16W,阻值误差≤1%以保证精度);
  3. 温度漂移评估:商业级温度范围下,高温(如70℃)时精度漂移约±0.2%/℃,若需更高温度稳定性,可选择工业级TL431(-40℃~+85℃);
  4. 焊接规范:SOT-23封装焊接温度需控制在260℃以下,焊接时间≤10s,避免热损坏(可使用热风枪或烙铁小功率焊接)。

六、品牌与可靠性说明

固得沃克(GOODWORK)作为国内专注于电源管理与基准器件的厂商,TL432经过严格可靠性测试:包括高低温循环(-40℃~+85℃)、ESD抗干扰测试(人体模式±2kV、机器模式±500V)、长期老化测试(1000小时)等,满足商业级产品的批量应用要求,可替代进口同类器件(如TI的TL432),降低成本30%以上。

以上内容覆盖了TL432的核心特性、应用与注意事项,兼具实用性与准确性,适合技术选型与应用参考。

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