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CONSONANCE CN3781
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN3781
- Type
- CONSONANCE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN3781
- Electronic Component
- 1
- Package
- SSOP-10-150mil
- Electronic Component
- Battery Management
- Electronic Component
- 0.13g
- Electronic Component
- 1
- Features
- Programmable Current
- Electronic Component
- BM0257674191
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4.83V~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.
CN3781 产品概述
一、产品简介
CN3781 是 CONSONANCE（上海如韵）推出的一款单节锂电池充电管理芯片，专为便携设备和电源系统设计。芯片支持单节锂离子电池的恒流/恒压（CC/CV）充电策略，具备低静态功耗与较高的充电能力，适用于需要高效率与可靠性的充电场景。
二、关键参数
- 芯片类型：充电芯片 / 电池管理 CN3781
- 工作电压：4.83 V ~ 28 V
- 最大充电电流：4 A（可根据外部元件配置调整）
- 充电饱和电压（终止电压）：4.20 V（适用于标准单节锂离子电池）
- 电池类型：锂电池（单节）
- 工作温度：-40 ℃ ~ +85 ℃
- 静态电流（Iq）：15 μA
- 封装：SSOP-10-150mil
三、主要特性
- 高输入电压范围（4.83~28V），兼容多种供电源（适配器、车载、USB升压等）。
- 最大支持4A充电电流，满足快充需求（需配合合适的电流检测与热管理）。
- 低静态电流（15μA），有利于系统在无电源输入时降低能耗。
- 标准4.2V恒压终止，适配常见单节锂离子电芯。
- 宽工作温度范围，适合工业级和消费类产品。
四、典型应用
- 便携式消费电子（蓝牙音箱、手持设备）
- 移动电源/充电宝（单节设计或并联管理场景）
- 车载电源与后备电源系统
- 工业便携检测仪器与物联网终端
五、设计注意事项
- 为达到标称最大充电电流，应在外部配置合适的电流感测电阻和功率能力足够的MOSFET/供电路径，并注意PCB散热设计。
- 建议在输入端和输出端加适当的旁路电容与ESD保护元件，保证系统稳定性与抗干扰能力。
- 严格按照电池厂商推荐的充放电规范设计，设计中应考虑温度监控与热关断机制以防止电池过热。
- 参考原厂数据手册选择配置参数（限流电阻、检测电阻、充电指示电路等），以确保可靠的充电行为与安全保护。
六、封装与采购信息
CN3781 提供 SSOP-10-150mil 封装，便于中小型 PCB 布局与自动化贴装。产品品牌为 CONSONANCE（上海如韵），采购与工程样片可联系厂商或其授权分销渠道获取数据手册与参考设计。
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