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JSMSEMI TP4057
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JSMSEMI TP4057
- Type
- JSMSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JSMSEMI
- Electronic Component
- TP4057
- Electronic Component
- 1
- Package
- SOT-23-6
- Electronic Component
- Battery Management
- Electronic Component
- 0.046g
- Electronic Component
- 1
- Features
- Programmable Current
- Electronic Component
- BM0257623727
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4V~6V
- 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 JSMSEMI（杰盛微）推出的一款适用于单节锂电池的充电控制芯片，采用 SOT-23-6 小封装，面向体积受限的便携设备与低功耗应用。芯片工作电压范围为 4V ～ 6V，支持最大充电电流 550mA，充电饱和电压为 4.2V，满足单节 Li-ion/Li-poly 标准充电需求。
二、主要电气参数（关键规格）
- 芯片类型：充电芯片（单节锂电池）
- 输入工作电压：4V ～ 6V（常见供电源为 5V USB）
- 最大充电电流：550mA
- 充电饱和电压（终止电压）：4.2V
- 支持电池节数：1 节
- 电池温度检测：不支持
- 0V 电池充电：不支持（不具备唤醒 0V 电池功能）
- 静态电流（Iq）：3µA（待机极低功耗）
- 工作温度范围：-40℃ ～ +85℃
- 封装：SOT-23-6
- 品牌：JSMSEMI（杰盛微）
三、充电特性与行为说明
TP4057 适配单节锂电池的标准充电流程（恒流‑恒压模式与终止判断为常见方案，芯片的 4.2V 充电饱和值与单节电池兼容）。芯片静态电流仅 3µA，适合对待机功耗有较高要求的便携产品。需要注意：芯片不支持电池温度检测与 0V 唤醒功能，设计中若需这些安全与恢复能力，应额外加入外部检测或前端电路。
四、典型应用场景
- 小型便携式设备：蓝牙耳机、迷你智能穿戴、便携式传感器节点等；
- 便携式外设与充电模块：小容量移动电源、充电基板；
- 工业与消费类低功耗终端：需要单节锂电池供电且充电电流在数百毫安以内的场景。
五、设计注意事项与建议
- 电源输入：推荐使用稳压且能承受瞬时负载的 5V USB 电源，输入端需加适当去耦电容以保证稳定；
- 充电电流限制：设计时应确认负载电源的能力与 PCB 铜箔散热，避免超过 550mA 最大充电电流；具体设定充电电流的方法请参照正式器件手册或样片评估；
- 热管理：SOT-23-6 小封装在高充电电流下会产生热量，建议合理布局散热铜箔并留意环境温度对充电效率的影响；
- 保护与监控：由于芯片不具备电池温度检测与 0V 唤醒，建议外加温度检测器、熔断器或电池保护 IC 以增强安全性；另若需充电状态指示或外部中断功能，应配合外部指示电路或 MCU 控制；
- PCB 布局：输入地与电池地要短且粗，输入与电池之间放置必要的滤波与保护元件，避免噪声与振荡影响充电稳定性。
六、封装与可靠性
TP4057 提供 SOT-23-6 小型封装，方便在空间受限的产品中使用。芯片工作温度覆盖 -40℃ ～ +85℃，适合大多数消费与工业环境。实际量产前应进行热、可靠性与 EMC 等评估测试，确保在目标应用的长期稳定性。
备注：本文基于所给基础参数进行概要性说明，设计与量产请以 JSMSEMI 官方数据手册与样片评估结果为准，涉及具体脚位、编程方式及外部设定元件值等信息，应参考原厂完整资料。
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