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CONSONANCE CN3801
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN3801
- Type
- CONSONANCE
- Minimum package
- 4000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN3801
- Electronic Component
- 1
- Package
- SSOP-10-150mil
- Electronic Component
- Battery Management
- Electronic Component
- 0.14g
- Electronic Component
- 1
- Features
- Programmable Current
- Electronic Component
- BM0230257627
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4.5V~28V
- Battery Type
- Battery
- Battery
- 1
- ICType
- IC
- Static Current(Iq)
- 15uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CN3801 产品概述
一、主要参数
- 芯片类型：充电芯片（电池管理）
- 适配电池：磷酸铁锂（LiFePO4），单节（1S）
- 最大充电电流：4A
- 工作电压范围（输入）：4.5V ~ 28V
- 充电饱和电压（终止CV电压）：3.625V
- 静态电流（Iq）：15μA（低静态，利于待机寿命）
- 工作温度：-40℃ ~ +85℃
- 封装：SSOP-10（150 mil）
- 品牌：CONSONANCE（上海如韵）
二、功能与特点
- 支持典型的恒流/恒压（CC/CV）充电策略：先恒流充电到设定电压3.625V，再进入恒压阶段，电流逐步下降。
- 最高支持4A充电电流，适合高能量密度单节LiFePO4快速充电场景。
- 低静态电流（15μA），在无负载或待机时对电池影响小，适合低功耗系统。
- 宽输入电压范围（4.5~28V），兼容多种供电源（适配器、汽车电源、太阳能等）。
- 工业级温度范围，适用于室内外及工业应用环境。
三、充电保护与可靠性
CN3801 内置或配合外围器件可实现常用保护与管理功能，包括过压、过流、短路、热关断等（具体实现依赖参考电路与外部元件选型）。当达到充电饱和电压后进入恒压阶段，芯片通过降低充电电流完成充电过程，需结合终止判定（如电流阈值或定时）以保证电池寿命与安全。
四、PCB 设计与器件选型建议
- 充电电流高达4A，外部电流检测电阻与功率器件（MOSFET、肖特基二极管/同步整流器）需按I^2·R和散热要求选择足够功率等级与低Rds(on) 器件。
- 电流检测电阻应放置靠近芯片，采用多点进出线（Kelvin）减少测量误差；其功率耗散需计算（P = I^2·R）。
- 输入侧建议使用低ESR电解或固态电容做滤波，减小振荡与应力；加装输入反向保护与浪涌抑制元件以提高可靠性。
- 封装为SSOP-10，布局时保留足够铜箔面积极化散热，必要时加大过孔数量连通内层散热面。
五、典型应用场景
- 便携式电源、应急启动电源（单节LiFePO4）
- 太阳能小型储能、离网设备充电控制
- 工业仪表、通信备电、物联网终端
- 电动工具、户外装备及其他需要高充电效率和高可靠性的场合
六、选型与使用注意
- 详细功能、引脚定义与参考电路请参阅厂商CN3801数据手册与参考设计，确保外围元件与保护电路按要求配置。
- 在高充电电流条件下，优先考虑热设计与器件热降额，避免长时间在高温环境下工作以延长器件与电池寿命。
- 依据应用场景设定合理的充电终止策略与安全限值，特别是在无人看管或移动环境中使用时，务必加冗余保护措施。
如需参考电路图、引脚说明或基于CN3801的典型充电板设计建议，可提供更详细的用途与约束，我可进一步给出针对性的电路与器件选型建议。
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