WMSIC Electronic Components

HXY MOSFET TP4057

ModelTP4057
PackageSOT-23-6L
BrandHXY MOSFET
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
HXY MOSFET TP4057
Type
HXY MOSFET
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HXY MOSFET
Electronic Component
TP4057
Electronic Component
1
Package
SOT-23-6L
Electronic Component
Battery Management
Electronic Component
0.044g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0228150207
Operating Temperature
40℃~+85℃
Operating Voltage
4.25V~6.5V
Battery Type
Battery
Battery
1
ICType
IC
0VBattery
Electronic Component

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

TP4057 产品概述

一、产品简介

TP4057 是华轩阳电子(HXY MOSFET)推出的一款小功率线性锂电池充电管理芯片,封装为 SOT-23-6L,用于单节锂离子/聚合物电池的恒流-恒压(CC/CV)充电。器件输入工作电压范围 4.25V~6.5V,最大充电电流 500mA,充电终止/饱和电压为 4.20V,静态电流仅 25μA,适合体积受限且对静态耗电有要求的小型便携设备。

二、主要特性

  • 单节锂电池充电,支持 Li-ion / Li-Po;
  • 输入电压 4.25V~6.5V,可直接由 5V USB 等电源供电(注意输入最低电压限制);
  • 最大充电电流 500mA,适合中小容量电池快充需求;
  • 恒压终止电压 4.20V,采用 CC/CV 充电策略;
  • 不支持电池温度检测(无 NTC 接入);
  • 不支持 0V 唤醒充电(对深度放电电池需外部处理);
  • 低静态电流 Iq = 25μA,利于降低待机损耗;
  • 工作温度范围 -40℃~+85℃。

三、技术与应用提示

  • 作为线性充电器,功耗主要为 (Vin - Vbat) × Ichg。设计时需评估器件发热并做热管理(散热片或良好 PCB 散热);
  • 输入最低电压接近电池终止电压,若系统电源可能跌落到 4.2V 附近,应确认仍能维持可靠充电;
  • 由于不支持 0V 唤醒,深度放电(近 0V)的电池需外部保护电路或采用支持低压唤醒的充电方案;
  • 无温度检测时应在系统层面做温度/环境约束,避免在极端温度下充电导致安全风险;
  • 通过外部电流设定元件配置最大充电电流为 500mA,实际使用时可按电池规格适当下调以延长电池寿命。

四、封装与选型建议

  • 封装:SOT-23-6L,适合空间受限的便携产品设计;
  • 选型时关注供应商型号一致性与质量认证,评估是否需要带电池检测或低压唤醒等额外功能的替代器件;
  • 在 PCB 布局上,靠近芯片放置输入/输出旁路电容,输入电源、地与电池回路尽量短且宽,保证热量均匀分布。

五、典型应用场景

  • 小型蓝牙耳机、穿戴式设备、便携式传感器、无线遥控器、低功耗 IoT 终端等需要单节锂电、充电电流≤500mA 的场合。

总结:TP4057 以其小封装、低静态电流和适配 5V 电源的特点,适用于体积与功耗受限的单节锂电充电应用;在设计时需重视热管理、输入电压裕量及对深度放电电池的外部保护方案。

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