WMSIC Electronic Components

HXY MOSFET TP4054

ModelTP4054
PackageSOT-23-5L
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HXY MOSFET TP4054
Type
HXY MOSFET
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HXY MOSFET
Electronic Component
TP4054
Electronic Component
1
Package
SOT-23-5L
Electronic Component
Battery Management
Electronic Component
0.043g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0228150206
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~5.5V
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.

TP4054 产品概述

一、产品简介

TP4054 是一款面向单节锂离子 / 锂聚合物电池的线性充电管理芯片,适用于 USB 或 5V 适配器供电的便携设备。由华轩阳电子(HXY MOSFET)提供的 SOT-23-5 封装版本,工作电压范围为 4.5V ~ 5.5V,充电流程采用恒流-恒压(CC/CV)策略,充电饱和电压为 4.20V,最大可设定充电电流为 500mA,静态电流(Iq)仅 55µA,适合对空间、成本和功耗都有要求的小型消费类电子产品的电池管理方案。

二、主要特性

  • 输入电压范围:4.5V ~ 5.5V,兼容常见 USB 与 5V 适配器电源。
  • 适配电池:单节锂离子/锂聚合物电池(1S)。
  • 充电电压:4.20V(充电饱和/浮充电压)。
  • 最大充电电流:500mA,可通过外接元件设定与限制。
  • 低静态电流:Iq = 55µA,有利于系统待机与节能。
  • 温度范围:-40°C ~ +85°C,满足工业级与消费级温度需求。
  • 封装:SOT-23-5,便于小尺寸 PCB 布局与批量生产。
  • 典型保护与管理功能:恒流恒压充电、充电终止(涓流终止或电流回落检测)、热量负反馈限流(Thermal Regulation)等(具体以芯片数据手册为准)。

三、典型功能与接口说明

  • VCC(或 IN):芯片供电输入,接 5V 电源。建议输入端增加陶瓷电容作去耦。
  • BAT:连接电池正极,芯片通过此端口对电池进行恒流/恒压充电。
  • PROG(或 ISET):外接电阻用于设置充电电流大小,常见系列芯片允许通过该电阻精确调整最大充电电流。以该系列常用经验公式 ICHG ≈ 1200 / RPROG(RPROG 单位为 kΩ,ICHG 单位为 mA)为参考,设定 500mA 时 RPROG 约为 2.4kΩ(实际以数据手册或实测为准)。
  • STAT:状态指示脚,通常为开漏输出,可驱动外部 LED 指示充电/完成状态或连接到 MCU 检测充电状态。
  • GND:地线。

四、典型电路与外部元件建议

  • 输入端:建议在 VCC 与 GND 之间并联 1µF ~ 10µF 低 ESR 陶瓷电容以稳定输入电源、抑制尖峰。
  • PROG 端:外接精密电阻以设定充电电流(按电路板布局选择 1% 精度电阻)。
  • STAT 端:通过适当限流电阻驱动 LED,或连接到 MCU 的开漏输入。
  • 散热:线性充电器的功耗为 (Vin - Vbat) × Icharge。以典型 Vin=5V、Vbat≈4.2V、I=0.5A 计算,耗散约 0.4W,需在 PCB 布局上预留散热铜箔并优化封装散热路径,避免芯片温度过高触发热限流从而降低充电速率。

五、应用场景

  • 小型便携式设备:蓝牙耳机、可穿戴设备、便携式传感器、玩具等。
  • USB 充电模块:USB 电源管理和电池充电模块。
  • 工业与消费类单节锂电池供电系统,对尺寸、成本和可靠性有平衡要求的场合。

六、使用建议与注意事项

  • 推荐在设计初期参考芯片完整数据手册,确认 PROG、电容与 LED 驱动连接的具体电气参数与典型应用电路。
  • 注意散热设计:当输入与电池电压差较大且充电电流接近最大值时,芯片功耗显著,需通过铜箔、过孔或底层散热来控制芯片结温。
  • 电池保护:TP4054 为充电管理芯片,不替代电池保护电路。为保证电池安全,建议配合合适的电池保护 IC 或保护板使用(过充、过放、过流、短路保护)。
  • 环境与可靠性:工作温度范围广,但在极端温度条件下应关注电池特性变化与充电安全性。
  • EMC 与布局:将高频电源线与敏感模拟或信号线分离,输入电容与芯片靠近布置,BAT 端尽量短并远离干扰源。

七、规格概要(参考)

  • 芯片类型:锂电池充电管理芯片(线性 CC/CV)
  • 输入电压:4.5V ~ 5.5V
  • 最大充电电流:500mA(可通过 PROG 调整)
  • 充电终止电压:4.20V
  • 电池节数:1 节锂电池
  • 工作温度:-40°C ~ +85°C
  • 静态电流:55µA
  • 封装:SOT-23-5(HXY MOSFET / 华轩阳电子 供应)

如需更详细的电气参数、典型曲线、引脚定义和参考设计,请提供是否需要我帮您查找或解析具体的数据手册与参考电路板布局建议。

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