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CONSONANCE CN3158
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN3158
- Type
- CONSONANCE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN3158
- Electronic Component
- 1
- Package
- ESOP-8
- Electronic Component
- Battery Management
- Electronic Component
- 0.112g
- Electronic Component
- 1
- Features
- Programmable Current
- Electronic Component
- BM0257674192
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4.4V~6V
- Battery Type
- Battery
- Battery
- 1
- ICType
- IC
- Static Current(Iq)
- 3uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CN3158 电池管理充电芯片 产品概述
一、产品简介
CN3158 是 CONSONANCE（上海如韵）推出的一款单节电池充电管理芯片，封装为 ESOP-8。芯片工作电压范围为 4.4V ~ 6V，适配常见 5V USB 或适配器输入；最大充电电流 1A，充电终端饱和电压为 3.63V，静态电流仅 3μA，适合低功耗待机场景。芯片工作温度范围宽（-40℃ ~ +85℃），并支持电池温度检测，便于实现安全可靠的充放电管理。
二、主要特性
- 单节锂离子/锂聚合物电池充电（1S）支持
- 工作电压：4.4V ~ 6V，兼容 USB/适配器电源
- 最大充电电流：1A，可通过外部元件或设定调整
- 充电饱和电压：3.63V（典型值，用于完成充电）
- 支持电池温度检测（NTC 接入），便于温度相关充电控制
- 极低静态电流 Iq = 3μA，利于电池自耗控制
- 宽温度工作范围：-40℃ ~ +85℃
- 封装：ESOP-8，便于表面贴装生产
三、功能与保护（常见设计项）
基于充电管理芯片的通用设计理念，CN3158 在系统中通常配合以下功能与保护实现可靠充电：
- CC/CV 充电策略（恒流-恒压），保障电池寿命与充电效率
- 充电电流限制与可调（通过外部电阻或器件设定）
- 电池温度监测（NTC）——过热或过冷时可自动限制或停止充电
- 过压、欠压保护与短路保护（建议外部配合输入保护器件实现更高可靠性）
（注：具体保护阈值请参照厂商正式资料或样片测试结果）
四、设计与应用建议
- 电源选型：常用 5V 输入时，充电功耗 = (Vin - Vbat) × Icharge；在 1A 下，需关注芯片及 PCB 的散热设计，必要时加铜箔或散热垫片。
- 温度采样：NTC 采样点应靠近电池正负端，避免被 PCB 发热源误判。常用 10k NTC 可与厂商建议阈值配合。
- 输入与输出滤波：在输入端放置合适的陶瓷电容（如 1μF~10μF）和输出电容，抑制瞬态与振荡。
- 保护电路：建议在输入侧加入反接保护（肖特基二极管或 MOSFET）、熔断/保险丝及 TVS 抑制，提升系统鲁棒性。
- 充电终止：可采用 0.1C 终止电流作为常用实践，或依据电池厂商建议设定更合理的终止策略。
五、适用场景与封装信息
CN3158 适用于便携类与低功耗设备的单节锂电池供电场景，如智能家居外设、手持终端、物联网节点、可穿戴设备等。芯片采用 ESOP-8 表贴封装，便于批量贴装与自动化生产。
总结：CN3158 以低静态电流、支持电池温度检测、宽电压工作和 1A 充电能力，适合对低功耗和安全性有要求的单节电池充电应用。具体功能参数和典型接线建议请结合厂商数据手册与样片验证完成最终产品设计。
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