WMSIC Electronic Components

JSMSEMI TP4056

ModelTP4056
PackageESOP-8
BrandJSMSEMI
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
JSMSEMI TP4056
Type
JSMSEMI
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JSMSEMI
Electronic Component
TP4056
Electronic Component
1
Package
ESOP-8
Electronic Component
Battery Management
Electronic Component
0.157g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0229961410
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.

TP4056(JSMSEMI 杰盛微)单节锂电线性充电管理芯片 产品概述

校验通过!

本概述基于 JSMSEMI(杰盛微)封装为 ESOP-8 的 TP4056 系列充电管理器件的基础参数整理与应用说明,适用于单节锂离子/聚合物电池的充电设计。该器件以简洁的外围电路、精确的恒流-恒压(CC/CV)充电算法和低静态电流著称,适合各类便携式电子产品与充电模块设计。

一、核心规格要点

  • 工作电压:4.5V ~ 5.5V(典型用于 USB 5V 供电场景)
  • 充电方式:恒流-恒压(CC/CV)
  • 充电饱和电压(终止电压):4.20V(单节电池)
  • 最大充电电流:1A(通过外部 PROG 电阻设定)
  • 支持电池温度检测(带 TEMP/NTC 接口)
  • 不支持 0V 深度耗尽电池直接唤醒充电(需外部前置电路)
  • 静态电流(Iq):约 1 μA(待机优化,降低自放电影响)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装:ESOP-8

二、功能与保护特性

  • 精确 CC/CV 充电:先以设定恒流快速充电,接近终止电压后自动切换恒压充电并逐步降低电流。
  • 自动充电终止:当电流下降到设定恒流值的大约 1/10 时自动判定充满并终止充电。
  • 温度检测保护:支持外接 NTC 热敏电阻以检测电池温度,若电池温度超出安全区间(过冷或过热),充电将被禁能。
  • 热调节(Thermal Regulation):在芯片或电路温度过高时自动降低充电电流以保护器件与电池。
  • 反接与短路注意:器件本身具备一定的内部保护机制,但设计时仍建议增加输入反接保护、熔断器或电流限制以提高系统安全性。
  • 低静态电流:约 1 μA,适合电池直连场合,降低待机损耗。

三、充电电流设定与示例

充电电流由 PROG 引脚外接的阻值 Rprog 决定,常用经验公式:

  • I_CHG (mA) ≈ 1200 / Rprog (kΩ)

示例:

  • 若需 1A 充电电流,Rprog ≈ 1.2 kΩ
  • 若需 500 mA,Rprog ≈ 2.4 kΩ
    在选择充电电流时请参考电池厂商建议的最大充电电流(一般为电池容量的 0.5C~1C),并预留一定的热裕量。

四、典型外部元件建议

  • 输入电容:建议在 VIN 端并联 1 μF~10 μF 的陶瓷电容以降低输入纹波与瞬态。
  • 电池端电容:适当的去耦电容帮助系统稳定。
  • PROG 电阻:精密电阻以确保充电电流精度。
  • 状态指示 LED:CHG 与 STDBY 两个指示端可驱动 LED,直观显示充电中/充满状态。
  • 温度检测:外接 NTC(常用 10 kΩ@25 ℃)连接到 TEMP 引脚实现电池温度监测。
  • 输入保护(可选):USB 输入口可加 TVS 二极管、限流熔断器或 MOSFET 以应对浪涌或反接。

五、布局与热管理建议

  • 在 PCB 布局上将电流路径(VIN、VOUT、电池连接)走短、宽的铜箔,以降低电阻和发热。
  • 为了散热与稳定性,建议在芯片附近放置足够的地平面与散热铜箔,避免器件长期在高温下工作导致热调节频繁降流。
  • PROG 电阻靠近芯片放置,指示 LED 与其限流电阻布局简洁以减少 EMI 影响。

六、应用场景与限制说明

适用场景:

  • 移动电源模块(小容量单节)
  • 蓝牙耳机、便携式音箱、手持设备充电电路
  • 单节锂电池充电座与 DIY 充电模块
  • 各类 USB 供电的便携电子产品

限制与注意事项:

  • 仅适用于单节锂离子或锂聚合物电池(4.2V 终止)。严禁直接用于多节串联电池组。
  • 不支持从 0V(完全过放)电池直接恢复充电;若需此功能需外加预充电或唤醒电路。
  • 在高环境温度与大充电电流组合下需关注热设计,避免器件过热降容或进入热限流状态。
  • 设计时严格遵循电池厂商的充电规范与安全要求。

总结:TP4056(JSMSEMI ESOP-8)是一款适用于单节锂电池的高集成度线性充电管理芯片,具备精确的 CC/CV 算法、低待机电流和电池温度监测能力,外围电路简单,适合用于各类便携式充电应用。设计时需注意热管理、电流设定与 0V 电池的限制,以确保长期稳定与安全。

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